David Guinness strained at the rope. It was futile, but in doing so he

twisted his head around and saw another form, similarly tied, lying

close to him. He gave a little cry of relief. It was Sue. And she was

conscious, her eyes on his face.

She spoke to him, but he could not understand her for the drone in his

ears, and when he spoke to her it was the same. But the professor did

not just then continue his effort to converse with her. His attention

was drawn to the borer, now dimly illuminated by its portable light,

which had been secured to the door. It was right side up, and appeared

to be undamaged. The broad ray of the searchlight fell far away on one

of the cavern's rough walls. He could just make out James Quade

standing there, his back towards them.

He was hacking at the wall with a pick. Presently he dropped the tool

and wrenched at the rock with bare hands. A large chunk came loose. He

hugged it to him and turned and strode back towards the two on the

floor, and as he drew near they could plainly see a gleam of triumph

in his eyes.

"You know what this is?" he shouted. Guinness could only faintly hear

him. "Wealth! Millions! Of course we always knew the radium was here,

but this is the proof. And now we've a way of getting it out--thanks

to your borer! All the credit is yours, Professor Guinness! You shall

have the credit, and I'll have the money."

Guinness tugged furiously at his bonds again. "You--you--" he gasped.

"How dare you tie us this way! Release us at once! What do you mean by

it?"

* * * * *

Quade smiled unpleasantly. "You're very stupid, Guinness. Haven't you

guessed by now what I'm going to do?" He paused, as if waiting for an

answer, and the smile on his face gave way to a look of savage menace.

For the first time his bitter feelings came to the surface.

"Have you forgotten how close I came to going to jail over those

charges of yours a year ago?" he said. "Have you forgotten the

disgrace to me that followed?--the stigma that forced me to disappear

for months? You fool, do you think I've forgotten?--or that I'd let

you--"

"Quade," interrupted the older man, "you know very well you were

guilty. I caught you red-handed. You didn't fool anyone--except the

jury that let you go. So save your breath, and, if you've the sense

you were born with, release my daughter and me. Why, you're crazy!" he

cried with mounting anger. "You can't get away with this! I'll have

you in jail within forty-eight hours, once I get back to the surface!"

With an effort Quade controlled his feelings and assumed his oily,

sarcastic manner. "That's just it," he said: "'once you get back!' How

stupid you are! You don't seem to realize that you're not going back

to the surface. You and your daughter."

Sue gasped, and her father's eyes went wide. There was a tense

silence.

"You wouldn't dare!" the inventor cried finally. "You wouldn't dare!"

"It's rather large, this cavern," Quade went on. "You'll have plenty

of room. Perhaps I'll untie you before I go back up, so--"

"You can't get away with it!" shouted the old man, tremendously

excited. "Why, you can't, possibly! Philip Holmes'll track you

down--he'll tell the police--he'll rescue us! And then--"

Quade smiled suavely. "Oh, no, he won't. Perhaps you remember the shot

that sounded from the water-hole? Well, when I and my assistant, Juan,

heard Holmes say he was going for water, I told Juan to follow him to

the water-hole and bind him, to keep him from interfering till I got

back up. But Mr. Holmes is evidently of an impulsive disposition, and

must have caused trouble. Juan, too, is impulsive; he is a Mexican.

And he had a gun. I'm afraid he was forced to use it.... I am quite

sure Philip Holmes will not, as you say, track me down."

David Guinness looked at his daughter's white face and horror-filled

eyes and suddenly crumpled. Humbly, passionately, he begged Quade to

take her back up. "Why, she's never done anything to you, Quade!" he

pleaded. "You can't take her life like that! Please! Leave me, if you

must, but not her! You can't--"

* * * * *

But suddenly the old man noticed that Quade was not listening. His

head was tilted to one side as if he was straining to hear something

else. Guinness was held silent for a moment by the puzzled look on the

other's face and the strange way he was acting.

"Do you hear it?" Quade asked at last; and without waiting for an

answer, he knelt down and put his ear to the ground. When he rose his

face was savage, and he cursed under his breath.

"Why, it's a humming!" muttered Professor Guinness. "And it's getting

louder!"

"It sounds like another borer!" ventured Sue.

The humming grew in volume. Then, from the ceiling, a rock dropped.

They were looking at the cavern roof and saw it start, but they did

not hear it strike, for the ever-growing humming echoed loudly through

the cavern. They saw another rock fall; and another.

"For God's sake, what is it?" cried Guinness.

Quade looked at him and slowly drew out his automatic.

"Another earth-borer, I think," he answered. "And I rather expect it

contains your young friend Mr. Holmes. Yes--coming to rescue you."

For a moment Guinness and his daughter were too astounded to do

anything but gape. She finally exclaimed:

"But--but then Phil's alive?"

James Quade smiled. "Probably--for the moment. But don't let your

hopes rise too high. The borer he's in isn't strong enough to survive

a fifty-foot plunge." He was shouting now, so loud was the thunder

from above. "And," he added, "I'm afraid he's not strong enough to

survive it, either!"

CHAPTER II

_The Man-Hunt_

When Phil Holmes started off to the water-hole, his head was full of

the earth-borer and the imminent descent. Now that the long-awaited

time had come, he was at fever-pitch to be off, and it did not take

him long to cover the mile of sandy waste. His thoughts were far

inside the earth as he dipped the jug into the clear cool water and

sloshed it full.

So the rope that snaked softly through the air and dropped in a loop

over his shoulders came as a stark surprise. Before he knew what was

happening it had slithered down over his arms and drawn taut just

above the elbows, and he was yanked powerfully backwards and almost

fell.

But he managed to keep his feet as he staggered backward, and turning

his head he saw the small dark figure of his aggressor some fifteen

feet away, keeping tight the slack.

Phil's surprise turned to sudden fury and he completely lost his head.

What he did was rash; mad; and yet, as it turned out, it was the only

thing that could have saved him. Instinctively, without hesitating

one second, and absolutely ignoring an excited command to stand still,

he squirmed face-on to his aggressor, lowered his head and charged.

The distance was short. Halfway across it, a gun barked, and he heard

the bullet crack into the water jug, which he was still holding in

front of himself. And even before the splintered fragments reached the

ground he had crashed into the firer.

He hit him with all the force of a tackling lineman, and they both

went down. The man grunted as the wind was jarred out of him, but he

wriggled like an eel and managed to worm aside and bring up his gun.

Then there was a desperate flurry of bodies in the coarse sand. Holmes

dived frantically for the gun hand and caught it; but, handicapped as

he was by the rope, he could not hold it. Slowly its muzzle bent

upward to firing position.

Desperately, he wrenched the arm upwards, in the direction it had been

straining to go, and the sudden unexpected jerk doubled the man's arm

and brought the weapon across his chest. For a moment there was a test

of strength as Phil lay chest to chest over his opponent, the gun

blocked between. Then the other grunted; squirmed violently--and there

was a muffled explosion.

A cry of pain cut the midnight air, and with insane strength Holmes'

ambusher fought free from his grip, staggered to his feet and went

reeling away. Phil tore loose from the rope and bounded after him,

never feeling, at the moment, his powder-burned chest.

And then he halted in his tracks.

A great roar came thundering over the desert!

* * * * *

At once he knew that it came from the earth-borer's disintegrators.

The sphere had started down without him.

He stood stock still, petrified with surprise, facing the sound, while

his attacker melted farther and farther into the night. And then,

suddenly, Phil Holmes was sprinting desperately back towards the

Guinness camp.

He ran until he was exhausted; walked for a little while his legs

gathered more strength, and his laboring lungs more air; and then ran

again. As the minutes passed, the thunder lessened rapidly into a

muffled drone; and by the time Phil had panted up to the brink of the

hole that gaped where but a little time before the sphere was

standing, it had become but a distant purr. He leaned far over and

peered into the hot blackness below, but could see nothing.

Phil knelt there silently for some minutes, shocked by his strange

attack, bewildered by the unexpected descent of the borer. For a time

his mind would not work; he had no idea what to do. But gradually his

thoughts came to order and made certain things clear.

He had been deliberately ambushed. Only by luck had he escaped, he

told himself. If it hadn't been for the water jug, he'd now be out of

the picture. And on the heels of the ambush had came the surprising

descent of the earth-borer. The two incidents coincided too well: the

same mind had planned them. And two, men, at least, were in on the

plot.... It suddenly became very clear to him that the answer to the

puzzle lay with the man who had ambushed him. He would have to get

that man. Track him down.

Phil acted with decision. He got to his feet and strode rapidly to the

deserted Guinness shack, horribly quiet and lonely now in the bright

moonlight. In a minute he emerged with a flashlight at his belt and a

rifle across his arm.

Once again he went over to the new black hole in the desert and looked

down. From far below still came the purr, now fainter than ever. His

friend, the girl he loved, were down there, he reflected bitterly, and

he was helpless to reach them. Well, there was one thing he could

do--go man-hunting. Turning, he started off at a long lope for the

water-hole.

* * * * *

Ten minutes later he was there, and off to the side he found the marks

of their scuffle--and small black blotches that could be nothing but

blood. The other was wounded: could probably not get far. But he might

still have his gun, so Phil kept his rifle handy, and tempered his

impatience with caution as he set out on the trail of the widely

spaced footprints.

They led off towards the nearby hills, and in the bright moonlight

Phil did not use his flashlight at all, except to investigate other

round black blotches that made a line parallel to the prints. As he

went on he found his quarry's steps coming more closely together:

becoming erratic. Soon they showed as painful drags in the sand, a

laborious hauling of one foot after the other.... Phil put away his

light and advanced very cautiously.

He wondered, as he went, who in the devil was behind it all. The

radium-finding project had been kept strictly secret. Not another soul

was supposed to know of the earth-borer and its daring mission into

the heart of the earth. Yet, obviously, someone had found out, and

whoever it was had laid at least part of his scheme cunningly. An old

man and a girl cannot offer much resistance: he, Phil, would have been

well taken care of had it not been for the water jug. So far, there

were at least two in the plot: the man who had ambushed him and the

unknown who had evidently kidnapped both Professor and Sue Guinness.

But there might be still more.

There might be friends, nearby, of the man he was tracking. The fellow

might have reached them, and warned them that the scheme hadn't gone

through, that Phil was loose. They could very easily conceal

themselves alongside their partner's tracks and train their rifles on

the tracker....

The trail was leading up into one of the cañons in the cluster of

hills to the west. For some distance he followed it up through a slash

of black below the steep moonlit heights of the hills to each

side--and then, suddenly, he vaguely made out the forms of two huts

just ahead.

Immediately he stooped low, and went skirting widely off up one side.

He proceeded slowly, with great caution, his rifle at the ready. At

any moment, he knew, the hush might be split by the cracks of

waylaying guns. Warily he advanced along the narrow cañon wall above

the huts. No lights were lit, and the place seemed unoccupied. He was

debating what to do next when his attention was attracted to a large

dark object lying in the cañon trail some twenty yards from the

nearest hut. Straining his eyes in the inadequate moonlight, he saw

that it was the outstretched figure of a man. His quarry--his

ambusher!

* * * * *

Phil dropped flat, fearful of being seen. Keeping as best he could in

the shadows, fearing every moment to hear the sharp bark of a gun, he

crawled forward. It took him a long time to approach the sprawled

figure, but he wasn't taking chances. When within twenty feet, he rose

suddenly and darted forward to the man's side.

His rapid glance showed him that the fellow was completely out: and

another quick look around failed to show that anyone else was

watching, so he returned to his examination of the man. It was the

ambusher, all right: a Mexican. He was still breathing, though his

face was drawn and white from the loss of blood from a wound under the

blood-soaked clothing near his upper right arm. A hasty search showed

that he no longer had his gun, so Phil, satisfied that he was

powerless for some time to come, cautiously wormed his way towards the

two shacks.

There was something sinister in the strange silence that hung over

them. One was of queer construction--a windowless, square, high box

of galvanized iron. The other was obviously a dwelling place.

Carefully Phil sneaked up to the latter. Then, rifle ready, he pushed

its door open and sent a beam of light stabbing through the darkness

of the interior.

There was no one there. Only two bunks, a table, chair, a pail of

water and some cooking utensils met his view. He crept out toward the

other building.

Come close, Phil found that a dun-colored canvas had been thrown over

the top of it, making an adequate camouflage in daytime. The place was

about twenty feet high. He prowled around the metal walls and

discovered a rickety door. Again, gun ready, he flung it open. The

beam from his flash speared a path through the blackness--and he

gasped at sight of what stood revealed.

There, inside, was a long, bullet-like tube of metal, the pointed end

upper-most, and the bottom, which was flat, toward the ground. It was

held in a wooden cradle, and was slanted at the floor. In the bottom

were holes of two shapes--rocket tubes and disintegrating projectors.

It was another earth-borer.

* * * * *

Phil stood frozen with surprise before this totally unlooked-for

machine. He could easily have been overcome, had the owner been in the

building, for he had forgotten everything but what his eyes were

staring at. He started slowly around the borer, found a long narrow

door slightly ajar, and stepped inside.

This borer, like Guinness's, had a double shell, and much the same

instruments, though the whole job was simpler and cruder. A small

instrument board contained inclination, temperature, depth and

air-purity indicators, and narrow tubes led to the air rectifiers. But

what kept Holmes' attention were the wires running from the magneto to

the mixing chambers of the disintegrating tubes.

"The fools!" he exclaimed, "--they didn't know how to wire the thing!

Or else," he added after a moment, "didn't get around to doing it." He

noticed that the projectile's interior contained no gyroscope: though,

he thought, none would be needed, for the machine, being long and

narrow, could not change keel while in the ground. Here he was

reminded of something. Stepping outside, he estimated the angle the

borer made with the dirt floor. Twenty degrees. "And pointed

southwest!" he exclaimed aloud. "This borer would come close to

meeting the professor's, four miles under our camp!"

* * * * *

At once he knew what he would do. First he went back to the other

shack and got the pail of water he had noticed, and took this out

where the Mexican lay outstretched. He bathed the man's face and the

still slightly bleeding bullet wound in his shoulder.

Presently the wounded man came to. His eyes opened, and he stared up

into a steel mask of a face, in which two level black eyes bored into

his. He remembered that face--remembered it all too well. He trembled,

cowered away.

"No!" he gasped, as if he had seen a ghost. "No--no!"

"Yes, I'm the man," Holmes told him firmly, menacingly. "The same one

you tried to ambush." He paused a moment, then said: "Do you want to

live?"

It was a simple question, frightening in its simplicity.

"Because if you don't answer my questions, I'm going to let you lie

here," Phil went on coldly. "And that would probably mean your death.

If you do answer, I'll fix you up so you can have a chance."

The Mexican nodded eagerly. "I talk," he said.

"Good," said Phil. "Then tell me who built that machine?"

"Señor Quade. Señor James Quade."

"Quade!" Phil had heard the name before. "Of course!" he said.

"Guinness's old partner!"

"I not know," the Mexican answered. "He hire me with much money. He

buy thees machine inside, and we put him together. But he could no

make him work--it take too long. We watch, hear old man go down

to-night, and--"

* * * * *

The greaser stopped. "And so he sent you to get me, while he kidnapped

the old man and his daughter and forced them under the ground in their

own borer," Holmes supplied, and the other nodded.

"But I only mean to tie you!" he blurted, gesturing weakly. "I no mean

shoot! No, no--"

"All right--forget it," Phil interrupted. "And now tell me what Quade

expects to do down there."

"I not know, Señor," came the hesitant reply, "but...."

"But what?" the young man jerked.

Reluctantly the wounded Mexican continued. "Señor Quade--he--I think

he don' like thees old man. I think he leave heem an' the girl down

below. Then he come up an' say they keeled going down."

Phil nodded grimly. "I see," he said, voicing his thoughts. "Then he

would say that he and Professor Guinness are still partners--and the

radium ore will belong to him. Very nice. Very nice...."

He snapped back to action, and without another word hoisted the

Mexican onto his back and carried him into the shack. There he

cleansed the wound, rigged up a tight bandage for it, and tied the man

to one of the cots. He tied him in such a fashion that he could reach

some food and water he put by the cot.

"You leave me like thees?" the Mexican asked.

"Yes," Phil said, and started for the door.

"But what you going to do?"

Phil smiled grimly as he flung an answer back over his shoulder.

"Me?--I'm going to fix the wiring on those disintegrators in your

friend Quade's borer. Then I'm starting down after him." He stopped

and turned before he closed the door. "And if I don't get back--well,

it's just too bad for you!"

* * * * *

And so, a little later, once more the hushed desert night was cleft by

a furious bellow of sound. It came, this time, from a narrow cañon.

The steep sides threw the roar back and back again, and the echoes

swelled to an earth-shaking blast of sound. The oblong hut from which

it came rocked and almost fell; then, as the noise began to lessen,

teetered on its foundations and half-slipped into the ragged hole that

had been bored inside.

The descent was a nightmare that Holmes would never forget. Quade's

machine was much cruder and less efficient than the sphere David

Guinness had designed. Its protecting insulation proved quite

inadequate, and the heat rapidly grew terrific as the borer dug down.

Phil became faint, stifled, and his body oozed streams of sweat. And

the descent was also bumpy and uneven; often he was forced to leave

the controls and work on the mechanism of the disintegrators when they

faltered and threatened to stop. But in spite of everything the needle

on the depth gauge gradually swung over to three thousand, and four,

and five....

After the first mile Holmes improvised a way to change the air more

rapidly, and it grew a little cooler. He watched the story the depth

gauge told with narrowed eyes, and, as it reached three miles,

inspected his rifle. At three and a half miles he stopped the borer,

thinking to try to hear the noise made by the other, but so paralyzed

were his ear-drums from the terrific thunder beneath, it seemed hardly

any quieter when it ceased.

His plans were vague; they would have to be made according to the

conditions he found. There was a coil of rope in the tube-like

interior of the borer, and he hoped to find a cavern or cleft in the

earth for lateral exploring. He would stop at a depth of four

miles--where he should be very near the path of the professor's

sphere.

But Phil never saw the needle on the gauge rise to four miles. At

three and three quarters came sudden catastrophe.

He knew only that there was an awful moment of utter helplessness,

when the borer swooped wildly downwards, and the floor was snatched

sickeningly from under him. He was thrown violently against the

instrument panel; then up toward the pointed top; and at the same

instant came a rending crash that drove his senses from him....

CHAPTER III

"_You Haven't the Guts_"

"Just as I thought," said James Quade in the silence that fell when

the last echoes had died away, and the splinters of steel and rock had

settled. "You see, Professor, this earth-borer belongs to me. Yes, I

built one too. But I couldn't, unfortunately, get it working

properly--that is, in time to get down here first. After all, I'm not

a scientist, and remembered little enough of your borer's plans....

It's probably young Holmes who's dropped in on us. Shall we see?"

David Guinness and his daughter were speechless with dread. Quade had

trained the searchlight on the borer, and by turning their heads they

could see it plainly. It was all too clear that the machine was a

total wreck. It had pitched over onto one side, its shell cracked and

mangled irreparably. Grotesque pieces of crumpled metal lay all around

it. Its slanting course had tumbled it within fifteen yards of the

sphere.

In silence the old man and the girl watched Quade walk deliberately

over to it, his automatic steady in his right hand. He wrenched at the

long, narrow door, but it was so badly bent that for a while he could

not get it open. At last it swung out, however, and Quade peered

inside.

After a moment he reached in and drew out a rifle. He took it over to

a nearby rock, smashed the gun's breech, then flung it, useless,

aside. Returning to the borer, he again peered in.

Sue was about to scream from the torturous suspense when he at last

straightened up and looked around at the white-faced girl and her

father.

"Mr. Holmes is tougher than I'd thought possible," he said, with a

thin smile; "he's still alive." And, as Sue gasped with relief, he

added: "Would you like to see him?"

* * * * *

He dragged the young man's unconscious body roughly out on the floor.

There were several bad bruises on his face and head, but otherwise he

was apparently uninjured. As Quade stood over him, playing idly with

the automatic, he stirred, and blinked, and at last, with an effort,

got up on one elbow and looked straight at the thin lips and narrowed

eyes of the man standing above. He shook his head, trying to

comprehend, then muttered hazily:

"You--you're--Quade?"

Quade did not have time to answer, for Sue Guinness cried out:

"Phil! Are you all right?"

Phil stared stupidly around, caught sight of the two who lay bound on

the floor, and staggered to his feet. "Sue!" he cried, relief and

understanding flooding his voice. He started towards her.

"Stand where you are!" Quade snapped harshly, and the automatic in his

hand came up. Holmes peered at it and stopped, but his blood-streaked

face settled into tight lines, and his body tensed.

"You'd better," continued Quade. "Now tell me what happened to Juan."

Phil forced himself to be calm. "Your pal, the greaser?" he said

cuttingly. "He's lying on a bunk in your shack. He shot himself,

playing with a gun."

Quade chose not to notice the way Phil said this, but a little of the

suave self-confidence was gone from his face as he said: "Well, in

that case I'll have to hurry back to the surface to attend to him. But

don't be alarmed," he added, more brightly. "I'll be back for you all

in an hour or so."

At this, David Guinness struggled frantically with his bonds and

yelled:

"Don't believe him, Phil! He's going to leave us here, to starve and

die! He told us so just before you came down!"

* * * * *

Quade's face twitched perceptibly. His eyes were nervous.

"Is that true, Quade?" Holmes asked. There was a steely note in his

voice.

"Why--no, of course not," the other said hastily, uncertain whether to

lie or not. "Of course I didn't!"

Phil Holmes looked square into his eyes. He bluffed.

"You couldn't desert us, Quade. You haven't the guts. You haven't the

guts."

His face and eyes burned with the contempt that was in his words. It

cut Quade to the raw. But he could not avoid Phil's eyes. He stared at

them for a full moment, trembling slightly. Slowly, by inches, he

started to back toward the sphere; then suddenly he ran for it with

all his might, Holmes after him. Quade got to it first, and inside, as

he yanked in the searchlight and slammed and locked the door, he

yelled:

"You'll see, you damned pup! You'll see!" And there was the smothered

sound of half-maniacal laughter....

Phil threw all his weight against the metal door, but it was hopeless

and he knew it. He had gathered himself for another rush when he heard

Guinness yell:

"Back, Phil--back! He'll turn on the side disintegrators!"

Mad with rage as the young man was, he at once saw the danger and

leaped away--only to almost fall over the professor's prone body. With

hurrying, trembling fingers he untied the pair's bonds, and they

struggled to their feet, cramped and stiff. Then it was Phil who

warned them.

"Back as far as you can! Hurry!" He grabbed Sue's hand and plunged

toward the uncertain protection of a huge rock far in the rear. At

once he made them lie flat on the ground.

* * * * *

As yet the sphere had not stirred nor emitted a whisper of sound,

though they knew the man inside was conning the controls in a fever of

haste to leave the cavern. But they hadn't long to wait. There came a

sputter, a starting cough from the rocket tubes beneath the sphere.

Quickly they warmed into life, and the dully glimmering ball rocked in

the hole it lay in. Then a cataract of noise unleashed itself; a

devastating thunder roared through the echoing cavern as the rockets

burst into full force. A wave of brilliant orange-red splashed out

from under the sphere, licked back up its sides, and seemed literally

to shove the great ball up towards the hole in the ceiling.

Its ascent was very slow. As it gained height it looked--save for its

speed--like a fantastic meteor flaming through the night, for the

orange plumage that streamed from beneath lit the ball with dazzling

color. A glowing sphere, it staggered midway between floor and

ceiling, creeping jerkily upwards.

"He's not going to hit the hole!" shouted Guinness.

The borer had not risen in a perfectly straight line; it jarred

against the rim of the hole, and wavered uncertainly. Every second the

roar of its rockets, swollen by echoes, rose in a savage crescendo;

the faces of the three who watched were painted orange in the glow.

The sphere was blind. The man inside could judge his course only by

the feel. As the three who were deserted watched, hoping ardently that

Quade would not be able to find the opening, the left side-rockets

spouted lances of fire, and they knew he had discovered the way to

maneuver the borer laterally. The new flames welded with the exhaust

of the main tubes into a great fan-shaped tail, so brilliant and shot

through with other colors that their eyes could not stand the sight,

except in winks. The borer jerked to the right, but still it could not

find the hole. Then the flames lessened for a moment, and the borer

sank down, to rise again a moment later. Its ascent was so labored

that Phil shouted to Professor Guinness:

"Why so slow?"

And the inventor told him that which he had not seen for the

intolerable light.

"Only half his rockets are on!"

* * * * *

This time the sphere was correctly aimed, however, and it roared

straight into the hole. Immediately the fierce sound of the exhaust

was muffled, and in a few seconds only the fiery plumage, shooting

down from the ceiling, showed where the machine was. Then this

disappeared, and the noise alone was left.

Phil leaped forward, intending to stare up, but Guinness's yell halted

him.

"Not yet! He might still use the disintegrators!"

For many minutes they waited, till the muffled exhaust had died to a

drone. There was a puzzled expression on the professor's face as the

three at last walked over and dared peer up into the hole. Far above,

the splash of orange lit the walls of the tunnel.

"That's funny!" the old man muttered. "He's only using half the

rockets--about ten. I thought he'd turn them all on when he got into

the hole, but he didn't. Either they were damaged in the fall, or

Quade doesn't see fit to use them."

"Half of them are enough," said Phil bitterly, and put his arm around

the quiet girl standing next to him. Together, a silent little group,

they watched the spot of orange die to a pin-point; watched it waver,

twinkle, ever growing smaller.... And then it was gone.

Gone! Back to the surface of the earth, to the normal world of

reality. Only four miles above them--a small enough distance on the

surface itself--and yet it might have been a million miles, so utterly

were they barred from it....

* * * * *

The same thought was in their minds, though none of them dared express

it. They were thinking of the serene desert, and the cool wind, and

the buttes and the high hills, placid in the moonlight. Of the hushed

rise of the dawn, the first flush of the sun that was so achingly

lovely on the desert. The sun they would never see again, buried in a

lifeless world of gloom four miles within.... And buried alive--and

not alive for long....

But that way lay madness. Phil Holmes drove the horrible thoughts from

his brain and forced a smile to his face.

"Well, that's that!" he said in a voice meant to be cheerful.

The dim cavern echoed his words mockingly. With the earth-borer

gone--the man-made machine that had dared break a solitude undisturbed

since the earth first cooled--the great cavern seemed to return to its

awful original mood. The three dwarfed humans became wholly conscious

of it. They felt it almost a living thing, stretching vastly around

them, tightening its unheard spell on them. Its smell, of mouldy earth

and rocks down which water slowly dripped, filled their nostrils and

somehow added to their fear.

As they looked about, their eyes became accustomed to the dim, eery,

phosphorescent illumination. They saw little worm-like creatures now

and again appear from tiny holes between stalagmites in the jagged

floor; and, as Phil wondered in his mind how long it would be before

they would be reduced to using them for food, a strange mole-sized

animal scraped from the darkness and pecked at one of them. As it

slithered away, a writhing shape in its mouth, Holmes muttered

bitterly: "A competitor!" Vague, flitting forms haunted the gloom

among the stalactites of the distorted ceiling--hints of the things

that lived in the terrible silence of this nether world. Here Time had

paused, and life had halted in primate form.

A little moan came from Sue Guinness's pale lips. She plucked at her

arm; a sickly white worm, only an inch long, had fallen on it from the

ceiling. "Oh!" she gasped. "Oh!"

Phil drew her closer to him, and walked with her over to Quade's

wrecked borer. "Let's see what we've got here," he suggested

cheerfully.

The machine was over on its side, the metal mangled and crushed beyond

repair. Nevertheless, he squeezed into it. "Stand back!" he warned.

"I'm going to try its rockets!" There was a click of broken machinery,

and that was all. "Rockets gone," Phil muttered.

He pulled another lever over. There was a sputter from within the

borer, then a furious roar that sent great echoes beating through the

cavern. A cloud of dust reared up before the bottom of the machine,

whipped madly for a moment, and sank as the bellow of sound died down.

Sue saw that a rocky rise in the floor directly in front of the

disintegrators had been planed off levelly.

Phil scrambled out. "The disintegrators work," he said, "but a lot of

good they do us. The borer's hopelessly cracked." He shrugged his

shoulders, and with a discouraged gesture cast to the ground a coil of

rope he had found inside.

Then suddenly he swung around. "Professor!" he called to the old

figure standing bowed beneath the hole in the ceiling. "There's a

draft blowing from somewhere! Do you feel it?"

Guinness felt with his hands a moment and nodded slowly. "Yes," he

said.

"It's coming from this way!" Sue said excitedly, pointing into the

darkness on one side of the cavern. "And it goes up the hole we made

in the ceiling!"

Phil turned eagerly to the old inventor. "It must come from

somewhere," he said, "and that somewhere may take us toward the

surface. Let's follow it!"

"We might as well," the other agreed wearily. His was the tone of a

man who has only a certain time to live.

But Phil was more eager. "While there's life, there's hope," he said

cheerfully. "Come on, Sue, Professor!" And he led the way forward

toward the dim, distorted rock shapes in the distance.

* * * * *

The roof and sides of the cavern angled down into a rough, tunnel-like

opening, from which the draft swept. It was a heavy air, weighted with

the smell of moist earth and lifeless water and a nameless, flat,

stale gas. They slowly made their way through the impeding

stalagmites, surrounded by a dark blur of shadows, the ghostly

phosphorescent light illuminating well only the few rods around them.

Utter silence brooded over the tunnel.

Phil paused when they had gone about seventy-five feet. "I left that

rope behind," he said, "and we may need it. I'll return and get it,

and you both wait right here." With the words he turned and went back

into the shadows.

He went as fast as he could, not liking to leave the other two alone.

But when he had retrieved the rope and tied it to his waist, he

permitted himself a last look up as he passed under the hole in the

ceiling--and what he saw there tensed every muscle in his body, and

made his heart beat like mad. Again there was a tiny spot of orange in

the blackness above!

"Professor!" he yelled excitedly. "Sue! Come here! The sphere's

coming back!"

There was no doubt about it. The pin-point of light was growing each

second, with the flame of the descending exhausts. Guinness and his

daughter ran from the tunnel, and, guided by Phil's excited

ejaculations, hurried to his side. Their eyes confirmed what his had

seen. The earth-borer was coming down!

"But," Guinness said bewilderedly, "those rockets were enough to lift

him!"

This was a mystery. Even though ten rockets were on--ten tiny spots of

orange flame--the sphere came down swiftly. The same force which some

time before had lifted it slowly up was now insufficient. The roar of

the tubes rose rapidly. "Get back!" Phil ordered, remembering the

danger, and they all retreated to the mouth of the tunnel, ready to

peep cautiously around the edge. Holmes' jaws were locked tight with

grim resolution. Quade was coming back! he told himself exultantly.

This time he must not go up alone! This time--!

But his half-formed resolutions were idle. He could not know what

frightful thing was bringing Quade down--what frightful experience was

in store for them all....

CHAPTER IV

_Spawn of the Cavern_

In a crescendo of noise that stunned their ears, the earth-borer came

down. Tongues of fire flared from the hole, speared to the ground and

were deflected upward, cradling the metal ball in a wave of flame.

Through this fiery curtain the machine slowly lowered to the floor,

where a shower of sparks spattered out, blinding the eyes of the

watchers with their brilliance. For a full minute the orange-glowing

sphere lay there, quivering from the vibration; then the exhausts died

and the wave of flame wavered and sank into nothingness. While their

ear-drums continued the thunder, the three stared at the borer, not

daring to approach, yet striving to solve the mystery of why it had

sunk despite the up-thrust of ten rocket tubes.

As their eyes again became accustomed to the familiar phosphorescent

illumination, pallid and cold after the fierce orange flame, they saw

why--and their eyes went wide with surprise and horror.

A strange mass was covering the top of the earth-borer--something that

looked like a heap of viscid, whitish jelly. It was sprawled

shapelessly over the round upper part of the metal sphere, a

half-transparent, loathsome stuff, several feet thick in places.

And Phil Holmes, striving to understand what it could be, saw an awful

thing. "It's moving!" he whispered, unconsciously drawing Sue closer.

"There's--there's life in it!"

Lazy quiverings were running through the mound of jelly, pulsings that

gave evidence of its low organism. They saw little ripples of even

beat run over it, and under them steady, sluggish convulsions that

told of life; that showed, perhaps, that the thing was hungry and

preparing to move its body in quest of food.

It was alive, unquestionably. The borer lay still, but this thing

moved internally, of itself. It was life in its lowest, most primate

form. The mass was mind, stomach, muscle and body all in one, stark

and raw before their startled eyes.

"Oh, God!" Phil whispered through the long pause. "It can't be

real!..."

"Protoplasm--a monster amoeba," David Guinness's curiously cracked

voice said. "Just as it exists on the surface, only microscopically.

Primate life...."

* * * * *

The lock of the earth-borer clicked. Phil gasped. "Quade is coming

out!" he said. A little cry of horror came from Sue. And the metal

door opened.

James Quade stepped through, automatic in hand. He was fresh from the

light inside, and he could not see well. He was quite unconscious of

what was oozing down on him from above, of the flabby heap that was

carefully stretching down for him. He peered into the gloom, looking

for the three he had deserted, and all the time an arm from the mass

above crept nearer. Sue Guinness's nerves suddenly gave, and she

shrieked; but Quade's ears were deaf from the borer's thunder, and he

did not hear her.

It was when he lifted one foot back into the sphere--probably to get

out the searchlight--that he felt the thing's presence. He looked

up--and a strange sound came from him. For seconds he apparently could

not move, stark fear rooting him to the ground, the gun limp in his

hand.

Then a surge ran through the mound of flesh, and the arm, a pseudopod,

reached more rapidly for him.

It stung Quade into action. He leaped back, brought up his automatic,

and fired at the thing once; then three times more. He, and each one

of the others, saw four bullets thud into the heap of pallid matter

and heard them clang on the metal of the sphere beneath. They had gone

right through its flesh--but they showed no slightest effect!

Quade was evidently unwilling to leave the sphere. Jerking his arm up

he brought his trigger finger back again. A burst of three more shots

barked through the cavern, echoing and re-echoing. The man screamed an

inarticulate oath as he saw how useless his bullets were, and hurled

the empty gun at the monster--which was down on the floor now, and

bunching its sluggish body together.

The automatic went right into it. They could all see it there, in the

middle of the amorphous body, while the creature stopped, as if

determining whether or not it was food. Quade screwed his courage

together in the pause, and tried to dodge past to the door of the

sphere; but the monster was alert: another pseudopod sprang out from

its shapeless flesh, sending him back on his heels.

The feeler had all but touched Quade, and with the closeness of his

escape, the remnants of his courage gave. He yelled, and turned and

ran.

* * * * *

He ran straight for the three who watched from the tunnel mouth, and

the mound of shapeless jelly came fast on his trail. It came in

surging rolls, like thick fluid oozing forward; it would have been

hard to measure its size, for each moment it changed. The only

impression the four humans had was that of a wave of half-transparent

matter that one instant was a sticky ball of viscid flesh and the next

a rapidly advancing crescent whose horns reached far out on each flank

to cut off retreat.

By instinct Phil jerked Sue around and yelled at the professor to run,

for the old man seemed to be frozen into an attitude of fearful

interest. Bullets would not stop the thing--could anything? Holmes

wondered. He could visualize all too easily the death they would meet

if that shapeless, naked protoplasmic mass overtook and flowed over

them....

But he wasted no time with such thoughts. They ran, all three, into

the dark tunnel.

Quade caught up with them quickly. Personal enmity was suspended

before this common peril. They could not run at full speed, for a

multitude of obstacles hindered them. Tortuous ridges of rock lay

directly across their path, formations that had been whipped in some

mad, eon-old convulsion and then, through the ages, remained frozen

into their present distortion; black pits gaped suddenly before them;

half-seen stalagmites, whose crystalline edges were razor-sharp, tore

through to their flesh. Haste was perilous where every moment they

might stumble into an unseen cleft and go pitching into awful depths

below. They were staking everything on the draft that blew steadily

in their faces; Phil told himself desperately that it must lead to

some opening--it must!

But what if the opening were a vertical, impassable tunnel? He would

not think of that....

Old David Guinness tired fast, and was already lagging in the rear

when Quade gasped hoarsely:

"Hurry! It's close behind!"

* * * * *

Surging rapidly at a constant distance behind them, it came on. It was

as fast as they were, and evidently untiring. It was in its own

element; obstacles meant nothing to it. It oozed over the jagged

ridges that took the humans precious moments to scramble past, and the

speed of its weird progress seemed to increase as theirs faltered. It

was a heartless mass driven inexorably by primal instinct towards the

food that lay ahead. The dim phosphorescent illumination tinged its

flabby tissues a weird white.

The passage they stumbled through narrowed. Long irregular spears of

stalactites hung from the unseen ceiling; others, the drippings of

ages, pronged up from the floor, shredding their clothes as they

jarred into them. One moment they were clambering up-hill, slipping on

the damp rock; the next they were sliding down into unprobed darkness,

reckless of where they would land. They were aware only that the

water-odorous draft was still in their faces, and the hungry mound of

flesh behind....

"I can't last much longer!" old Guinness's winded voice gasped. "Best

leave me behind. I--I might delay it!"

For answer, Phil went back, grabbed him by the arm and dragged his

tired body forward. He was snatching a glance behind to see how close

the monster was, when Sue's frightened voice reached him from ahead.

"There's a wall here, Phil--and no way through!"

And then Holmes came to it. It barred the passage, and was apparently

unbroken. Yet the draft still came!

"Search for where the draft enters!" he yelled. "You take that side!"

And he started feeling over the clammy, uneven surface, searching

frantically for a cleft. It seemed to be hopeless. Quade stood staring

back into the gloom, his eyes looking for what he knew was surging

towards them. His face had gone sickly white, he was trembling as if

with fever, and he sucked in air with long, racking gasps.

"Here! I have it!" cried the girl suddenly at her end of the wall. The

other three ran over, and saw, just above her head, a narrow rift in

the rock, barely wide enough to squirm through. "Into it!" Phil

ordered tersely. He grasped her, raised her high, and she wormed

through. Quade scrambled to get in next, but Holmes shoved him aside

and boosted the old man through. Then he helped the other.

A second after he had swung himself up, a wave of whitish matter

rolled up below, hungry pseudopods reaching for the food it knew was

near. It began to trickle up the wall....

* * * * *

The crack was narrow and jagged; utterly black. Phil could hear Quade

frantically worming himself ahead, and he wondered achingly if it

would lead anywhere. Then a faint, clear voice from ahead rang out:

"It's opening up!"

Sue's voice! Phil breathed more easily. The next moment Quade

scrambled through; dim light came; and they were in another vast,

ghostly-lit cavern.

The crack came out on its floor-level; Guinness was resting near, and

his daughter had her hands on a large boulder of rock. "Let's shove it

against the hole!" she suggested to Phil. "It might stop it!"

"Good, Sue, good!" he exclaimed, and at once all four of them strained

at the chunk, putting forth every bit of strength they had. The

boulder stirred, rolled over, and thudded neatly in front of the

crack, almost completely sealing it. There was only a cleft of five

inches on one side.

But their expression of relief died in their throats. A tiny trickle

of white appeared through the niche. The amorphous monster was

compressing itself to a single stream, thin enough to squeeze through

even that narrow space.

They could not block it. They had nothing to attack it with. There was

nothing to do but run.... And hope for a chance to double back....

As nearly as they could make out, this second cavern was as large as

the first. They could dimly see the fantastic shapes of hundreds of

stalactites hanging from the ceiling. Clumps of stalagmites made the

floor a maze which they threaded painfully. The strong steady draft

guided them like a radio beacon, leading them to their only faint hope

of escape and life. Guinness, very tired, staggered along

mechanically, a heavy weight on Phil's supporting arm; James Quade ran

here and there in frantic spurts of speed. Sue was silent, but the

hopelessness in her eyes tortured Phil like a wound. His shirt had

long since been ripped to shreds; his face, bruised in the first place

by the borer he had crashed in, now was scratched and bloody from

contact with rough stalagmites.

* * * * *

Then, without warning, they suddenly found among the rough walls on

the far side of the cavern, the birthplace of the draft. It lay at the

edge of the floor--a dark hole, very wide. Black, sinister and clammy

from the draft that poured from it, it pierced vertically down into

the very bowels of the earth. It was impassable.

James Quade crumpled at the brink; "It's the end!" he moaned. "We

can't go farther! It's the end of the draft!"

The hole blocked their forward path completely. They could not go

ahead.... In seconds, it seemed, the slithering that told of the

monster's approach sounded from behind. Sue's eyes were already fixed

on the awful, surging mass when a voice off to one side yelled:

"Here! Quick!"

It was Phil Holmes. He had been scouting through the gloom, and had

found something.

The other three ran to him. "There's another draft going through

here," he explained rapidly, pointing to an angled crevice in the

rocky wall. "There's a good chance it goes to the cavern where the

sphere and the hole to the surface are. Anyway, we've got to take it.

I'd better go first, after this--and you, Quade, last. I trust you

less than the monster behind."

He turned and edged into the crack, and the others followed as he had

ordered. Quickly the passageway broadened, and they found the going

much easier than it had been before. For perhaps ten minutes they

scrambled along, with the draft always on their backs and the blessed,

though faint, fire of hope kindling again. In all that time they did

not see their pursuer once, and the hope that they had lost it brought

a measure of much needed optimism to drive their tired bodies onward.

They found but few time-wasting obstacles. If only the tunnel would

continue right into the original cavern! If only their path would stay

clear and unhindered!

But it did not. The sound of Phil's footsteps ahead stopped, and when

Sue and her father came up they saw why.

"A river!" Phil said.

* * * * *

They were standing on a narrow ledge that overhung an underground

river. A fetid smell of age-old, lifeless water rose from it. Dimly,

at least fifty feet across, they could see the other side, shrouded in

vague shadows. The inky stream beneath did not seem to move at all,

but remained smooth and hard and thick-looking.

They could not go around it. The ledge was only a few feet wide, and

blocked at each side.

"Got to cross!" Phil said tersely.

Quade, sickly-faced, stared down. "There--there might be other things

in that water!" he gasped. "Monsters!"

"Sure," agreed Phil contemptuously. "You'd better stay here." He

turned to the others. "I'll see how deep it is," he said, and without

the faintest hesitation dove flatly in.

Oily ripples washed back, and they saw his head poke through,

sputtering. "Not deep," he said. "Chest-high. Come on."

He reached for Sue, helped her down, and did the same for her father.

Holding each by the hand, Sue's head barely above the water, he

started across. They had not gone more than twenty feet when they

heard Quade, left on the bank, give a hoarse yell of fear and dive

into the water. Their dread pursuer had caught up with them.

And it followed--on the water! Phil had hoped it would not be able to

cross, but once more the thing's astounding adaptability dashed his

hopes. Without hesitation, the whitish jelly sprawled out over the

water, rolling after them with ghastly, snake-like ripples, its pallid

body standing out gruesomely against the black, odorous tide.

Quade came up thrashing madly, some feet to the side of the other

three. He was swimming--and swimming with such strength that he

quickly left them behind. He would be across before they; and that

meant there was a good chance that the earth-borer would go up again

with only one passenger....

Phil fought against the water, pulling Sue and her father forward as

best he could. From behind came the rippling sound of their shapeless

pursuer. "Ten feet more--" Holmes began--then abruptly stopped.

There had been a swish, a ripple upstream. And as their heads turned

they saw the water part and a black head, long, evil, glistening,

pointing coldly down to where they were struggling towards the shore.

Phil Holmes felt his strength ooze out. He heard Professor Guinness

gasp:

"A water-snake!"

* * * * *

Its head was reared above the surface, gliding down on them silently,

leaving a wedge of long, sluggish ripples behind. When thirty feet

away the glistening head dipped under, and a great half-circle of

leg-thick body arched out. It was like an oily stream of curved cable;

then it ended in a pointed tail--and the creature was entirely under

water....

With desperate strength Phil hauled the girl to the bank and, standing

in several feet of water, pushed her up. Then he whirled and yanked

old Guinness past him up into the hands of his daughter. With them

safe, and Sue reaching out her hand for him, he began to scramble up

himself.

But he was too late. There was a swish in the water behind him, and

toothless, hard-gummed jaws clamped tight over one leg and drew him

back and under. And with the touch of the creature's mouth a stiff

shock jolted him; his body went numb; his arms flopped limply down. He

was paralyzed.

Sue Guinness cried out. Her father stared helplessly at the spot where

his young partner had disappeared with so little commotion.

"It was an eel," he muttered dully. "Some kind of electric eel...."

Phil dimly realized the same thing. A moment later his face broke the

surface, but he could not cry out; he could not move his little

finger. Only his involuntary muscles kept working--his heart and his

lungs. He found he could control his breathing a little.... And then

he was wondering why he was remaining motionless on the surface.

Gradually he came to understand.

He had not felt it, but the eel had let go its hold on his leg, and

had disappeared. But only for a moment. Suddenly, from somewhere near,

its gleaming body writhed crazily, and a terrific twist of its tail

hit Phil a glancing blow on the chest. He was swept under, and the

water around him became a maelstrom. When next he bobbed to the

tumultuous surface, he managed to get a much-needed breath of

air--and in the swirling currents glimpsed the long, snake-like head

of the eel go shooting by, with thin trickles of stuff that looked

like white jelly clinging to it.

That explained what was happening. The eel had been challenged by the

ameboid monster, and they were fighting for possession of him--the

common prey.

* * * * *

The water became an inferno of whipping and lashing movements, of

whitish fibers and spearing thrusts of a glistening black electric

body. Unquestionably the eel was using its numbing electric shock on

its foe. Time and time again Phil felt the amoeba grasp him,

searingly, only to be wrenched free by the force of the currents the

combat stirred up. Once he thudded into the bottom of the river, and

his lungs seemed about to burst before he was again shot to the top

and managed to get a breath. At last the water quieted somewhat, and

Phil, at the surface, saw the eel bury its head in a now apathetic

mound of flesh.

It tore a portion loose with savage jaws, a portion that still writhed

after it was separated from the parent mass; and then the victor

glided swiftly downstream, and disappeared under the surface....

Holmes floated helplessly on the inky water. He could see the amoeba

plainly; it was still partly paralyzed, for it was very still. But

then a faint tremor ran through it; a wave ran over its surface--and

it moved slowly towards him once again.

Desperately Phil tried to retreat. The will was there, but the body

would not work. Save for a feeble flutter of his hands and feet, he

could not move. He could not even turn around to bid Sue and David

Guinness good-by--with his eyes....

Then a fresh, loved voice sounded just behind him, and he felt

something tighten around his waist.

"It's all right, dear!" the voice called. "Hang on; we'll get you

out!"

Sue had come in after him! She had grasped the rope tied to his belt,

and she and her father were pulling him back to the bank!

He wanted to tell her to go back--the amoeba was only feet away--but

he could only manage a little croak. And then he was safe up on the

ledge at the other side of the river.

* * * * *

A surge of strength filled his limbs, and he knew the shock was

rapidly wearing off. But it was also wearing off of the monster in the

water. Its speed increased; the ripplings of its amorphous

body-substance became quicker, more excited. It came on steadily.

While it came, the girl and her father worked desperately over Phil,

massaging his body and pulling him further up the bank. It had all but

reached the bank when Holmes gasped:

"I think I can walk now. Where--where did Quade go to?"

Guinness gestured over to the right, up a dim winding passage through

the rocks.

"Then we must follow--fast!" Phil said, staggering to his feet. "He

may get to the sphere first; he'll go up by himself even yet! I'm all

right!"

Despite his words, he could not run, and could only command an awkward

walk. Sue lifted one of his arms around her shoulder, and her father

took the other, and without a backward glance they labored ahead. But

Phil's strength quickly returned, and they raised the pace until they

had broken once more into a stumbling run.

How far ahead James Quade was, they did not know, but obviously they

could follow where he had gone. Once again the draft was strong on

their backs. They felt sure they were on the last stretch, headed for

the earth-borer. But, unless they could overtake Quade, he would be

there first. They had no illusions about what that would mean....

CHAPTER V

_A Death More Hideous_

Quade was there first.

When they burst out of a narrow crevice, not far from the

funnel-shaped opening they had originally entered, they saw him

standing beside the open door of the sphere as if waiting. The

searchlight inside was still on, and in its shaft of light they could

see that he was smiling thinly, once more his old, confident self. It

would only take him a second to jump in, slam the door and lock it. He

could afford a last gesture....

The three stopped short. They saw something he did not.

"So!" he observed in his familiar, mocking voice. He paused, seeing

that they did not come on. He had plenty of time.

He said something else, but the two men and the girl did not hear what

it was. As if by a magnet their eyes were held by what was hanging

above him, clinging to the lip of the hole the sphere had made in the

ceiling.

It was an amoeba, another of those single-celled, protoplasmic mounds

of flesh. It had evidently come down through the hole; and now it was

stretching, rubber-like, lower and lower, a living, reaching

stalactite of whitish hunger.

Quade was all unconscious of it. His final words reached Phil's

consciousness.

"... And this time, of course, I will keep the top disintegrators on.

No other monster will then be able to weigh me down!"

He shrugged his shoulders and turned to the door. And that movement

was the signal that brought his doom. Without a sound, the poised mass

above dropped.

James Quade never knew what hit him. The heap of whitish jelly fell

squarely. There was a brief moment of frantic lashing, of tortured

struggles--then only tiny ripples running through the monster as it

fed.

Sue Guinness turned her head. But the two men for some reason could

not take their eyes away....

* * * * *

It was the girl's voice that jerked them back to reality. "The other!"

she gasped. "It's coming, behind!"

They had completely forgotten the mass in the tunnel. Turning, they

saw that it was only fifteen feet away and approaching fast, and

instinctively they ran out into the cavern, skirting the sphere

widely. When they came to Quade's wrecked borer Phil, who had snatched

a glance behind, dragged them down behind it. For he had seen their

pursuer abandon the chase and go to share in the meal of its fellow.

"We'd best not get too far away," he whispered. "When they leave the

front of the borer, maybe we can make a dash for it."

For minutes that went like hours the young man watched, waiting for

the creatures to be done, hoping that they would go away. Fortunately

the sphere lay between, and he was not forced to see too much. Only

one portion of one of the monsters was visible, lapping out from

behind the machine....

At last his body tensed, and he gripped Sue and her father's arm in

quick warning. The things were leaving the sphere. Or, rather, only

one was. For Phil saw that they had agglutenated--merged into

oneness--and now the monster that remained was the sum of the sizes of

the original two. And more....

They all watched. And they all saw the amoeba stop, hesitate for a

moment--and come straight for the wrecked borer behind which they were

hidden.

"Damn!" Phil whispered hoarsely. "It's still hungry--and it's after

us!"

David Guinness sighed wearily. "It's heavy and sluggish, now," he

said, "so maybe if we run again.... Though I don't know how I can last

any longer...."

Holmes did not answer. His eyes were narrowed; he was casting about

desperately for a plan. He hardly felt Sue's light touch on his arm as

she whispered:

"In case, Phil--in case.... This must be good-by...."

But the young man turned to her with gleaming eyes. "Good-by,

nothing!" he cried. "We've still got a card to play!"

* * * * *

She stared at him, wondering if he had cracked from the strain of what

he had passed through. But his next words assured her he had not. "Go

back, Sue," he said levelly. "Go far back. We'll win through this

yet."

She hesitated, then obeyed. She crept back from the wrecked borer,

back into the dim rear, eyes on Phil and the sluggish mass that moved

inexorably towards him. When she had gone fifteen or twenty yards she

paused, and watched the two men anxiously.

Phil was talking swiftly to Professor Guinness. His voice was low and

level, and though she could not hear the words she could catch the

tone of assurance that ran through them. She saw her father nod his

head, and he seemed to make the gesture with vigor. "I will," she

heard him say; and he slapped Phil on the back, adding: "But for God's

sake, be careful!"

And with these words the old man wormed inside Quade's wrecked borer

and was gone from the girl's sight.

She wanted desperately to run forward and learn what Phil intended to

do, but she restrained herself and obeyed his order. She waited, and

watched; and saw the young man stand up, look at the slowly advancing

monster--and deliberately walk right into its path!

Sue could not move from her fright. In a daze she saw Phil advance

cautiously towards the amoeba and pause when within five feet of it.

The thing stopped; remained absolutely motionless. She saw him take

another short step forward. This time a pseudopod emerged, and reached

slowly out for him. Phil avoided it easily, but by so narrow a margin

that the girl's heart stopped beating. Then she saw him step back;

and, snail-like, the creature followed, pausing twice, as if wary and

suspicious. Slowly Phil Holmes drew it after him.

To Sue, who did not know what was his plan, it seemed a deliberate

invitation to death. She forgot about her father, lying inside the

mangled borer, waiting. She did not see that Phil was leading the

monster directly in front of it....

* * * * *

It was a grotesque, silent pursuit. The creature appeared to be

unalert; its movements were sloth-like; yet the girl knew that if Phil

once ventured an inch too close, or slipped, or tried to dodge past it

to the sphere, its torpidness would vanish and it would have him. His

maneuvering had to be delicate, judged to a matter of inches. Tense

with the suspense, the strain of the slow-paced seconds, she

watched--and yet hardly dared to watch, fearful of the awful thing she

might see.

It was a fantastic game of tag her lover was playing, with death the

penalty for tardiness. The slow, enticing movements were repeated

again and again, Phil advancing very close, and stepping back in the

nick of time. Always he barely avoided the clutching white arms that

were extended, and little by little he decoyed the thing onward....

Then came the end. As Holmes was almost in front of the wrecked

machine, Sue saw him glance quickly aside--and, as if waiting for that

moment when he would be off guard, the monster whipped forward in a

great, reaching surge.

Sue's ragged nerves cracked: she shrieked. They had him! She started

forward, then halted abruptly. With a tremendous leap, Phil Holmes had

wrenched free and flung himself backwards. She heard his yell:

"Now!"

* * * * *

There was a sputter from the bottom of the outstretched borer; then,

like the crack of a whip, came a bellow of awful sound.

A thick cloud of dust reared up, and the ear-numbing thunder rolled

through the cavern in great pulsing echoes. And then Sue Guinness

understood what the young man had been about.

The disintegrators of James Quade's borer had sent a broad beam of

annihilation into the monster. His own machine had destroyed his

destroyer--and given his intended victims their only chance to escape

from the dread fate he had schemed for them.

Sue could see no trace of the creature in its pyre of slow-swirling

dust. Caught squarely, its annihilation had been utter. And then,

through the thunder that still echoed in her ear-drums, she heard a

joyful voice.

"We got 'em!"

Through the dusty haze Phil appeared at her side. He flung his arms up

exultantly, swept her off the ground, hugged her close.

"We got 'em!" he cried again. "We're free--free to go up!"

Professor David Guinness crawled from the borer. His face, for the

first time since the descent, wore a broad smile. Phil ran over to

him, slapped him on the back; and the older man said:

"You did it beautifully, Phil." He turned to Sue. "He had to decoy

them right in front of the disintegrators. It was--well, it was

magnificent!"

"All credit to Sue: she was my inspiration!" Phil said, laughing. "But

now," he added, "let's see if we can fix those dead rocket-tubes. I

have a patient up above--and, anyway, I'm not over-fond of this

place!"

* * * * *

The three had won through. They had blasted four miles down from the

surface of the earth. The brain of an elderly scientist, the

quick-witted courage of a young engineer, had achieved the seemingly

impossible--and against obstacles that could not have been predicted.

Death had attended that achievement, as death often does accompany

great forward steps; James Quade had gone to a death more hideous than

that he devised for the others. But, in spite of the justice of it, a

moment of silence fell on the three survivors as they came to the spot

where his fate at last had caught up to him.

But it was only a moment. It was relieved by Professor Guinness's

picking up the chunk of radium ore his former partner had hewn from

the cavern's wall. He held it up for all to see, and smiled.

"Here it is," he said simply.

Then he led the way into his earth-borer, and the little door closed

quietly and firmly into place.

For a few minutes slight tappings came from within, as if a wrench or

a screwdriver were being used. Then the tappings stopped, and all was

silence.

A choke, a starting cough, came from beneath the sphere. A torrent of

rushing sound burst out, and spears of orange flame spurted from the

bottom and splashed up its sides, bathing it in fierce, brilliant

light. It stirred. Then, slowly and smoothly, the great ball of metal

raised up.

It hit the edge of the hole in the ceiling, and hung there,

hesitating. Side-rockets flared, and the sphere angled over. Then it

slid, roaring, through the hole.

Swiftly the spots of orange from its rocket-tube exhausts died to

pin-points. There were now almost twenty of them. And soon these

pin-points wavered, and vanished utterly.

Then there was only blackness in the hole that went up to the surface.

Blackness in the hole, calm night on the desert above--and silence, as

if the cavern were brooding on the puny figures and strange machines

that had for the first time dared invade its solitude, in the realms

four miles within the earth....

The Lake of Light

_By Jack Williamson_

[Illustration: _The monster emanated power, sinister, malevolent

power._]

[Sidenote: In the frozen wastes at the bottom of the world two

explorers find a strange pool of white fire--and have a strange

adventure.]

The roar of the motor rang loud in the frosty air above a desert of

ice. The sky above us was a deep purple-blue; the red sun hung like a

crimson eye low in the north. Three thousand feet below, through a

hazy blue mist of wind-whipped, frozen vapor, was the rugged

wilderness of black ice-peaks and blizzard-carved hummocks of snow--a

grim, undulating waste, black and yellow, splotched with crystal

white. The icy wind howled dismally through the struts. We were flying

above the weird ice-mountains of the Enderby quadrant of Antarctica.

That was a perilous flight, across the blizzard-whipped bottom of the

world. In all the years of polar exploration by air, since Byrd's

memorable flights, this area had never been crossed. The intrepid

Britisher, Major Meriden, with the daring American aviatrix whom the

world had known as Mildred Cross before she married him, had flown

into it nineteen years before--and like many others they had never

returned.

Faintly, above the purring drone of the motor, I heard Ray Summers'

shout. I drew my gaze from the desolate plateau of ice below and

leaned forward. His lean, fur-hooded face was turned back toward me. A

mittened hand was pointing, and thin lips moved in words that I did

not hear above the roar of the engine and the scream of the wind.

I turned and looked out to the right, past the shimmering silver disk

of the propeller. Under the blue haze of ice-crystals in the air, the

ice lay away in a vast undulating plain of black and yellow, broken

with splotches of prismatic whiteness, lying away in frozen desolation

to the rim of the cold violet sky. Rising against that sky I saw a

curious thing.

It was a mountain of fire!

Beyond the desert of ice, a great conical peak pointed straight into

the amethystine gloom of the polar heavens. It was brilliantly white,

a finger of milky fire, a sharp cone of pure light. It shone with

white radiance. It was brighter, far brighter, than is the sacred cone

of Fujiyama in the vivid day of Japan.

* * * * *

For many minutes I stared in wonder at it. Far away it was; it looked

very small. It was like a little heap of light poured from the hand of

a fire-god. What it might be, I could not imagine. At first sight, I

imagined it might be a volcano with streams of incandescent lava

flowing down the side. I knew that this continent of mystery boasted

Mt. Erebus and other active craters. But there was none of the smoke

or lurid yellow flame which accompanies volcanic eruptions.

I was still watching it, and wondering, when the catastrophe took

place--the catastrophe which hurled us into a mad extravaganza of

amazing adventure.

Our little two-place amphibian was flying smoothly, through air

unusually good for this continent of storms. The twelve cylinders of

the motor had been firing regularly since we took off from Byrd's old

station at Little America fifteen hours before. We had crossed the

pole in safety. It looked as if we might succeed in this attempt to

penetrate the last white spot on the map. Then it Happened.

A sudden crack of snapping metal rang out sharp as a pistol report. A

bright blade of metal flashed past the wing-struts, to fall in a

flashing arc. The motor broke abruptly into a mad, deep-voiced roar.

Terrific vibration shook the ship, until I feared that it would go to

pieces.

Ray Summers, with his usual quick efficiency, cut the throttle.

Quickly the motor slowed to idling speed; the vibration stopped. A

last cough of the engine, and there was no sound save the shrill

screaming of the wind in the gloomy twilight of this unknown land

beyond the pole.

"What in the devil!" I exclaimed.

"The prop! See!" Ray pointed ahead.

I looked, and the dreadful truth flashed upon me. The steel propeller

was gone, or half of it at least. One blade was broken off at a jagged

line just above the hub.

* * * * *

"The propeller! What made it break? I've never heard--"

"Search me!" Ray grinned. "The important thing is that it did. It was

all-metal, of course, tested and guaranteed. The guarantee isn't worth

much here. A flaw in the forging, perhaps, that escaped detection.

And this low temperature. Makes metal as brittle as glass. And the

thing may have been crystallized by the vibration."

The plane was coming down in a shallow glide. I looked out at the grim

expanse of black ice-crags and glistening snow below us, and it was

far from a comforting prospect. But I had a huge amount of confidence

in Ray Summers. I have known him since the day he appeared, from his

father's great Arizona ranch, to be a freshman in the School of Mines

at El Paso, where I was then an instructor in geology. We have knocked

about queer corners of the world together for a good many years. But

he is still but a great boy, with the bluff, simple manners of the

West.

"Do you think we can land?" I asked.

"Looks like we've got to," he said, grimly.

"And what after that?"

"How should I know? We have the sledge, tent, furs. Food, and fuel for

the primus to last a week. There's the rifle, but it must be a

thousand miles to anything to shoot. We can do our best."

"We should have had an extra prop."

"Of course. But it was so many pounds, when every pound counted. And

who knew the thing would break?"

"We'll never get out on a week's provisions."

"Not a shot! Too bad to disappoint Captain Harper." Ray grinned wanly.

"He ought to have the _Albatross_ around there by this time, waiting

for us." The _Albatross_ was the ship which had left us at Little

America a few months before, to steam around and pick us up at our

destination beyond Enderby Land. "We're in the same boat with Major

Meriden and his wife--and all those others. Lost without a trace."

"You've read Scott's diary--that he wrote after he visited the pole in

1912--the one they found with the bodies?"

"Yes. Not altogether cheerful. But we won't be trying to get out. No

use of that." He looked at me suddenly, grinning again. "Say, Jim, why

not try for that shining mountain we saw? It looks queer enough to be

interesting. We ought to make it in a week."

"I'm with you," I said.

* * * * *

I did not speak again, for the jagged ice-peaks were coming rather

near. I held my breath as the little plane veered around a slender

black spire and dropped toward a tiny scrap of smooth snow among the

ice-hummocks. I might have spared my anxiety. Under Ray's consumately

skilful piloting, the skids struck the snow with hardly a shock. We

glided swiftly over the ice and came to rest just short of a yawning

crevasse.

"Suppose," said Ray, "that we spend the first night in the plane. We

are tired already. We can keep warm here, and sleep. We've plenty of

ice to melt for water. Then we're off for the shining mountain."

I agreed: Ray Summers is usually right. We got out the sledge, packed

it, took our bearings, and made all preparations for a start to the

luminous mountain, which was about a hundred miles away. The

thermometer stood at twenty below, but we were comfortable enough in

our furs as we ate a scanty supper and went to sleep in the cabin of

the plane.

We started promptly the next morning, after draining the last of the

hot chocolate from our vacuum bottles, which we left behind. We had a

light but powerful sporting rifle, with telescopic sights, and several

hundred rounds of ammunition. Ray put them in the pack, though I

insisted that we would never need them, unless a quick way out of our

predicament.

"No, Jim," he said. "We take 'em along. We don't know what we're going

to find at the shining mountain."

The air was bitterly cold as we set out: it was twenty-five below and

a sharp wind was blowing. Only our toiling at the sledge kept us warm.

We covered eighteen miles that day, and made a good camp in the lee

of a bare stone ridge.

That night there was a slight fall of snow. When we went on it was

nearly thirty-five degrees below zero. The layer of fresh snow

concealed irregularities in the ice, making our pulling very hard.

After an exhausting day we had made hardly fifteen miles.

* * * * *

On the following day the sky was covered with gray clouds, and a

bitterly cold wind blew. We should have remained in the tent, but the

shortage of food made it imperative that we keep moving. We felt

immensely better after a reckless, generous fill of hot pemmican stew;

but the next morning my feet were so painful from frost-bite that I

could hardly get on my fur boots.

Walking was very painful to me that day, but we made a good distance,

having come to smoother ice. Ray was very kind in caring for me. I

became discouraged about going on at all: it was very painful, and I

knew there was no hope of getting out. I tried to get some of our

morphine tablets, but Ray had them, and refused to be convinced that

he ought to go on without me.

On the next march we came in sight of the luminous mountain, which

cheered me considerably. It was a curious thing, indeed. A

straight-sided cone of light it was, rather steeper than the average

volcano. Its point was sharp, its sides smooth as if cut with a

mammoth plane. And it shone with a pure white light, with a steady and

unchanging milky radiance. It rose out of the black and dull yellow of

the ice wilderness like a white finger of hope.

The next morning it was a little warmer. Ray had been caring for my

feet very attentively, but it took me nearly two hours to get on my

footgear. Again I tried to get him to leave me, but he refused.

We arrived at the base of the shining mountain in three more marches.

On the last night the fuel for the primus was all gone, having been

used up during the very cold weather, and we were unable to melt water

to drink. We munched the last of our pemmican dry.

* * * * *

A few minutes after we had started on the last morning, Ray stopped

suddenly.

"Look at that!" he cried.

I saw what he had seen--the wreck of an airplane, the wings crumpled

up and blackened with fire. We limped up to it.

"A Harley biplane!" Ray exclaimed. "That is Major Meriden's ship! And

look at that wing! It looks like it's been in an electric furnace!"

I examined the metal wing; saw that it had been blackened with heat.

The metal was fused and twisted.

"I've seen a good many wrecks, Jim. I've seen planes that burned as

they fell. But nothing like that. The fuselage and engines were not

even afire. Jim, something struck out from that shining mountain and

brought them down!"

"Are they--" I began.

Ray was poking about in the snow in the cockpits.

"No. Not here. Probably would have been better for them if they had

been killed in the plane. Quick and merciful."

He examined the engines and propellers.

"No. Seems to be nothing wrong. Something struck them down!"

Soon we went on.

The shining mountain rose before us like a great cone of fire. It must

have been three thousand feet high, and about that in diameter at the

bottom. Its walls were as smooth and straight as though turned from

milky rock crystal in a gigantic lathe. It shone with a steady,

brilliantly white radiance.

"That's no natural hill!" Ray grunted beside me as we limped on.

We were less than a mile from the foot of the cone of fire. Soon we

observed another remarkable thing about it. It seemed that a straight

band of silvery metal rose from the snow about its foot.

"Has it a wall around it?" I exclaimed.

"Evidently," said Ray. "Looks as if it's built on a round metal

platform. But by whom? When? Why?"

* * * * *

We approached the curious wall. It was of a white metal, apparently

aluminum, or a silvery alloy of that metal. In places it was

twenty-five feet high, but more usually the snow and ice was banked

high against it. The smooth white wall of the gleaming mountain stood

several hundred yards back from the wall.

"Let's have a look over it." Ray suggested. "We can get up on that

hummock, against it. You know, this place must have been built by

men!"

We clambered up over the ice, as he suggested, until our heads came

above the top of the wall.

"A lake of fire!" cried Ray.

Indeed, a lake of liquid fire lay before us. The white aluminum wall

was hardly a foot thick. It formed a great circular tank, nearly a

mile across, with the cone of white fire rising in the center. And the

tank was filled, to within a foot of the top, with shimmeringly

brilliant white fluid, bright and luminous as the cone--liquid light!

Ray dipped a hand into it. The hand came up with fingers of fire,

radiant, gleaming, with shining drops falling from them. With a

spasmodic effort, he flung off the luminous drops, rubbed his hand on

his garments, and got it back into its fur mitten.

"Gee, it's cold!" he muttered. "Freeze the horns off a brass

billy-goat!"

"Cold light!" I exclaimed. "What wouldn't a bottle of that stuff be

worth to a chemist back in the States!"

"That cone must be a factory to make the stuff." Ray suggested,

hugging his hand. "They might pump the liquid up to the top, and then

let it trickle down over the sides: that would explain why the cone is

so bright. The stuff might absorb sunlight, like barium sulphide. And

there could be chemical action with the air, under the actinic rays."

"Well, if somebody's making cold light, where does he use it?"

"I'd like to find out, and strike him for a hot meal," Ray said,

grinning. "It's too cold to live on top of the ground around here.

They must run it down in a cave."

"Then let's find the hole."

"You know it's possible we won't be welcome. This mountain of light

may be connected with the vanishing of all the aviators. We'd better

take along the rifle."

* * * * *

We set off around just outside the white metal wall. The snow and ice

was irregularly banked against it, but the wall itself was smooth and

unbroken. We had limped along for some two miles, or more than halfway

around the amazing lake of light. I had begun to doubt that we would

find anything.

Then we came to a square metal tower, ten feet on a side, that rose

just outside the silvery wall, to a level with its top. The ice was

low here; the tower rose twenty feet above its unequal surface. We

found metal flanges riveted to its side, like the steps of a ladder.

They were most inconveniently placed, nearly four feet apart; but we

were able to climb them, and to look down the shaft.

It was a straight-sided pit, evidently some hundreds of feet deep. We

could see a tiny square of light at the bottom, very far away. The

flanges ran down the side forming the rungs of a ladder that gave

access to whatever lay at the bottom.

Without hesitation, Ray climbed over the side and started down. I

followed him, feeling a great relief in getting out of the freezing

wind. Ray had the rifle and ammunition strapped to his back, along

with a few other articles; and I had a small pack. We had abandoned

the sledge, with the useless stove and the most of our instruments.

Our food was all gone.

The metal flanges were fully four feet apart, and it was not easy to

scramble down from one to another; certainly not easy for one who was

cold, hungry, thirsty, worn out with a week of exhausting marches, and

suffering the torture of frozen feet.

"You know, this thing was not built by men," Ray observed.

"Not built by men? What do you mean?"

"Men would have put the steps closer together. Jim, I'm afraid we are

up against something--well--that we aren't used to."

"If men didn't build this, what did?" I was astounded.

"Search me! This continent has been cut off from the rest of the world

for geologic ages. Such life as has been found here is not common to

the rest of the earth. It is not impossible that some form of life,

isolated here, has developed intelligence and acquired the power to

erect that cone of light--and to burn the wing off a metal airplane."

My thoughts whirled madly as we clambered down the shaft.

* * * * *

It must have taken us an hour to reach the bottom. I did not count the

steps, but it must have been at least a thousand feet. The air grew

rapidly warmer as we descended. We both took off most of our heavy fur

garments, and left them hanging on the rungs.

I was rather nervous. I felt the nearness of an intelligent, hostile

power. I had a great fear that the owners of those steps would use

them to find us, and then crush us ruthlessly as they had brought down

Meriden's plane.

The little square of white light below grew larger. Finally I saw Ray

swing off and stand on his feet in a flood of white radiance below me.

The air was warm, moist, laden with a subtle unfamiliar fragrance that

suggested growing things. Then I stood beside Ray.

We stood on the bare stone floor of a huge cavern. It must have been

of volcanic origin. The walls glistened with the sparkling smoothness

of volcanic glass. It was a huge space. The black roof was a hundred

feet high, or more; the cave was some hundreds of feet wide. And it

sloped away from us into dim distance as though leading into huger

cavities below.

The light that shone upon us came from an amazing thing--a fall of

liquid fire. From the roof plunged a sheer torrent of white

brilliantly luminous fluid, falling a hundred feet into a shimmering

pool of moon-flame. Shining opalescent mists swirled about it, and the

ceaseless roar of it filled the cave with sound. It seemed that a

stream of the phosphorescent stuff ran off down the cave from the

pool, to light the lower caverns.

"Very clever!" said Ray. "They make the stuff up there at the cone and

run it in here to see by."

"This warm air feels mighty good," I remarked, pulling off another

garment.

Ray sniffed the air. "A curious odor. Smells like something growing.

Where anything is growing there ought to be something to eat. Let's

see what we can find."

Only black obsidian covered the floor about us. Cautiously we skirted

the overflowing pool of white fire, and followed down the stream of it

that flowed toward the inner cavern. We had gone but a few hundred

yards when suddenly Ray stopped me with a hand on my arm.

"Lie flat!" he hissed. "Quick!"

He dived behind a huge mass of fire-born granite. I flung myself down

beside him.

"Something is coming up the trail by the shining river. And it isn't a

man! It's between us and the light; we should be able to see it."

* * * * *

Soon I heard a curious scraping sound, and a little tinkle of metal. I

caught a whiff of a powerful odor--a strange, fishy odor--so strong

that it almost knocked me down.

The thing that made the scraping and the tinkle and the smell came

into view. The sight of it sickened me with horror.

It was far larger than a man; its body was heavy as a horse's, but

nearer the ground. In form it suggested a huge crab, though it was not

very much like any crustacean I had ever seen. It was mostly red in

color, and covered with a huge scarlet shell. It had five pairs of

limbs. The two forward pairs had pinchers, seemingly used as hands; it

scraped along on the other three pairs. Yard-long antennae, slender

and luminously green, wavered above a grotesque head. The many facets

of compound eyes stood on the end of foot-long stalks.

The amazing crab-thing wore a metal harness. Bands of silvery aluminum

were fastened about its shell, with little cases of white metal

dangling to them. In one of its uplifted claws it carried what seemed

to be an aluminum bar, two feet long and an inch thick.

It scraped lumberingly past, between us and the racing stream of white

fire. It passed less than a dozen feet from us. The curious fishy

smell of it was overpowering, disgusting.

Sweat of horror chilled my limbs. The monster emanated power,

sinister, malevolent power, power intelligent, alien and hostile to

man.

I trembled with the fear that it would see us, but it scrambled

grotesquely on. When it was twenty yards past, Ray picked up a block

of black lava that lay beneath his hand and hurled it silently and

swiftly. It crashed splinteringly on the rocks far beyond the

creature, on the other side of the stream of light.

In fascination I watched the monster as it paused as if astonished.

The glittering compound eyes twisted about on their stalks, and the

long shining green tentacles wavered questioningly. Then the knobbed

limbs snapped the white metal tube to a level position. A metallic

click came from it.

And a ray of red light, vivid and intense, burst from the tube. It

flashed across the river of fire. With a dull, thudding burst it

struck the rocks where the stone had fallen. It must have been a ray

of concentrated heat. Rocks beneath it flashed into sudden

incandescence, splintered and cracked, flowed in molten streams.

* * * * *

In a moment the intensely brilliant ruby ray flashed off. The rocks in

the circle where it had struck faded to a dull red and then to

blackness, still cracking and crumbling.

To my intense relief, the monstrous crab lumbered on.

"That," Ray whispered, "is what got Major Meriden's airplane wing."

When we could hear its scraping progress no longer, we climbed up from

behind our boulder and continued cautiously down the cavern, beside

the rushing luminous river. In half a mile we came to a bend. Rounding

it, we gazed upon a remarkable sight.

We looked into a huge cavity in the heart of the earth. A vast

underground plain lay before us, with the black lava of the roof

arching above it. It must have been miles across, though we had no way

to measure it, and it stretched down into dim hazy distance. Its level

was hundreds of feet below us.

At our feet the glistening river of fire plunged down again in a

magnificent flaming fall. Below, its luminous liquid was spread out in

rivers and lakes and canals, over all the vast plain. The channels ran

through an amazing jungle. It was a forest of fungus, of mushroom

things with great fleshy stalks and spreading circular tops. But they

were not the sickly white and yellow of ordinary mushrooms, but were

of brilliant colors, bright green, flaming scarlet, gold and

purple-blue. Huge brilliant yellow stalks, fringed with crimson and

black, lifted mauve tops thirty feet or more. It was a veritable

forest of flame-bright fungus.

In the center of this weirdly forested subterranean plain was a great

lake, filled, not with the flaming liquid, but with dark crystal

water. And on the bottom of that lake, clearly visible from the

elevation upon which we stood, was a city!

* * * * *

A city below the water! The buildings were upright cylinders in groups

of two or three, of dozens, even of hundreds. For miles, the bottom of

the great lake was covered with them. They were all of crystal,

azure-blue, brilliant as cylinders turned from immense sapphires. They

were vividly visible beneath the transparent water. Not one of them

broke the surface.

Through the clear black water we saw moving hundreds, thousands of the

giant crabs. The crawled over the hard, pebbled bottom of the lake, or

swam between the crystal cylinders of the city. They were huge as the

one we had seen, with red shells, great ominous looking stalked eyes,

luminous green tentacular antennae and knobbed claws on forelimbs.

"Looks as if we've run on something to write home about," Ray muttered

in amazement.

"A whole city of them! A whole world! No wonder they could build that

cone-mountain for a lighting plant!"

"When they got to knocking down airplanes with that heat-ray," he

speculated, "they were probably surprised to find that other animals

had developed intelligence."

"Do you suppose those mushroom things are good to eat?"

"We can try and see--if the crabs don't get us first with a heat-ray.

I'm hungry enough to try anything!"

Again we cautiously advanced. The river of light fell over a sheer

precipice, but we found a metal ladder spiked to the rock, with rungs

as inconveniently far apart as those in the shaft. It was five hundred

feet, I suppose, to the bottom; it took us many minutes to descend.

At last we stepped off in a little rocky clearing. The forest of

brilliant mushrooms rose about us, great fleshy stalks of gold and

graceful fringes of black and scarlet about them, with flattened heads

of purple.

We started eagerly across toward the fungoid forest. I had visions of

tearing off great pieces of soft, golden flesh and filling my aching

stomach with it.

We were stopped by a sharp, poignantly eager human cry.

A human being, a girl, darted from among the mushroom stalks and ran

across to us. Sobbing out great incoherent cries, she dropped at Ray's

feet, wrapped her arms about his knees and clung to him, while her

slender body was wracked with sobbing cries.

* * * * *

My first impression was that she was very beautiful--and that

impression I was never called upon to revise. About her lithe young

body she had the merest scrap of some curious green fabric--ample in

the warm air of the great cavern. Luxuriant brown hair fell loose

about her white shoulders. She was not quite twenty years old, I

supposed; her body was superbly formed, with the graceful curves and

the free, smooth movements of a wild thing.

Ray stood motionless for a moment, thunder-struck as I was, while the

sobbing girl clung to his knees. Then the astonishment on his face

gave place to pity.

"Poor kid!" he murmured.

He bent, took her tenderly by the shoulder, helped her to her feet.

Her beauty burst upon us like a great light. Smoothly white, her skin

was, perfect. Wide blue eyes, now appealing, even piteous, looked

from beneath a wealth of golden brown hair. White teeth, straight and

even, flashed behind the natural crimson of her lips.

She stood staring at Ray, in a sort of enchantment of wonder. An eager

light of incredible joy flamed in her amazing eyes; red lips were

parted in an unconscious smile of joy. She looked like the troubled

princess in the fairy tale, when the prince of her dreams appeared in

the flesh.

"God, but you're beautiful!" Ray's words slipped out as if he were

hardly conscious of them. He flushed quickly, stepped back a little.

The girl's lips opened. She voiced a curious cry. It was deep toned,

pealing with a wonderful timbre. A happy burst of sound, like a baby

makes. But strong, ringing, musically golden. And pathetically eager,

pitifully glad, so that it brought tears to my eyes, cynical old man

that I am.

I saw Ray wipe his eyes.

"Can you talk?" Ray put the question in a clear, deliberate voice,

with great kindness ringing in it.

"Talk?" The chiming, golden voice was slow, uncertain. "Talk? Yes. I

talked--with mother. But for long--I have had no need to talk."

"Where is your mother?" Ray's voice was gentle.

"She is gone. She was here when I was little." The clear, silvery

voice was more certain now. "Once, when I was almost as big as

she--she was still. She was cold. She did not move when I called her.

The Things took her away. She was dead. She told me that sometime she

would be dead."

* * * * *

Bright tears came in the wide blue eyes, trickled down over the

perfect face. A pathetic catch was in the deliberate, halting voice. I

turned away, and Ray put a handkerchief to his face.

"What is your name? Who are you?" Ray spoke kindly.

"I am Mildred. Mildred Meriden."

"Meriden!" Ray turned to me. "I bet this is a daughter of the major

and his wife!"

"Father was the major," the girl said slowly. "He and mother came in a

machine that flew, from a far land. The Things burned the machine with

the red fire. They came here and the Things kept them. They made

mother sing over the water. They killed father. I never saw him."

"I know," Ray, said gently. "We came from the same land. We saw your

father's machine above."

"You came from outside! And you are going back? Oh, take me with you!

Take me!" Piteous pleading was in her voice. "It is so--lonely since

the Things took Mother away. Mother told me that sometime men would

come, and take me away to see the people and the outside that she told

me of. Oh, please take me!"

"Don't worry! You go along whenever we leave--if we can get out."

"Oh, I am so glad! You are very good!"

Impulsively, she threw her arms around Ray's neck. Gently, he

disengaged himself, flushing a little. I noticed, however, that he did

not seem particularly displeased.

"But can we get out?"

"Mother and I tried. We could never get out. The Things watch. They

make me come to the water to sing, when the great bell rings."

"Are these things goods to eat?" I motioned to the brilliant fungal

forest. I had begun to fear that Ray would never get to this very

important topic.

Blue eyes regarded me. "Eat? Oh, you are hungry! Come! I have food."

* * * * *

Like a child, she grasped Ray's hand, pulled him toward the mushroom

jungle. I followed, and we slipped in between the brilliantly golden,

fleshy stalks. They rose to the tangle of bright feathery fringes

above, huge and substantial as the trunks of trees.

In a few minutes we came to a wide, shallow canal, metal-walled,

through which a slow current of the opalescent, luminous liquid was

flowing. We crossed this on a narrow metal foot-bridge, and went on

through the brilliant forest.

Suddenly we emerged into a little clearing, with the black waters of

the great lake visible beyond it, across a quarter-mile of rocky

beach. In the middle of the open space, rose three straight cylinders

of azure crystal, side by side. Each must have been twenty feet in

diameter, and forty high. They shone with a clear blue light, like the

cylindrical buildings we had seen in the strange city of the

crab-creatures below the great lake.

Mildred Meriden, the strangely beautiful girl who had known no other

world than this amazing cavern empire where giant crabs reigned,

beckoned us with unconscious queenly grace to enter the arched door in

the blue sapphire wall of her remarkable abode of clustered cylinders.

The crystal of the walls seemed luminous, the lofty cylinders were

filled with a liquid, azure radiance. The high round room we entered

was strangely furnished. There was a silken couch, a bathing pool of

blue crystal filled with sparkling water, a curious chest of drawers

made of bright aluminum with a mirror of polished crystal, its top

bearing odd combs and other articles. The furnishings must have been

done by the giant crabs, under human direction.

Mildred led us quickly across the room, through an arched opening into

another. A round aluminum table stood in the center of the room, with

two curious metal chairs beside it. Odd metal cabinets stood about the

shining blue walls. The girl made us sit down, and put dishes before

us.

She gave us each a bowl of thick, sweetish soup, darkly red; placed

before us a dish piled high with little circular cakes, crisp and

brown, which had a tantalizing fragrance; poured for each of us a

transparent crystal goblet full of clear amber drink.

We fell to with enthusiasm and abandon.

"The Things made this place for father," the girl told us, as she

watched us eat, attentively replenishing the red soup in the great

blue crystal bowl, or the little cakes, or the fragrant amber drink.

"They would give him anything he wanted. But he tried to go away with

mother, and they killed him."

"We must get out of here," Ray declared when at last we had done. "We

must get together a lot of food, and enough clothing for all of us. We

ought to be able to make it to the edge of the ice-pack. We've got to

give these crab-things the slip; we ought to get off before they know

we're here--unless they already do."

Mildred was eagerly attentive: she was so unused to human speech that

it took the best of her efforts to understand us, though it seems that

her mother had given her quite a wide education. She promised that

there would be no difficulty about the food.

"Mother taught me how to fix food," she said. "She always said that

sometime men would come, with weapons of fire and great noise that

would tear and kill the Things. I have food ready, in bags--more than

we can carry. I have, too, the furs that mother and father wore."

She ran into another room and returned with a great pile of fur

garments, which we examined and found to be in good condition.

"Now is the time," Ray said. "I'd like to know more about the big

crabs, but there'll be a chance for that, later. Mildred is the

important thing, now. We must get her out. Then we can tell the world

about this place and come back with a bigger expedition."

"You think we can reach the coast?"

"I think so. It might be hard on Mildred. But we will have food; we

can probably find fuel for the stove in Meriden's plane, if the tanks

were well sealed. And Captain Harper should have a relief party landed

and sent to meet us. We should have only three or four hundred miles

to go alone."

"Three or four hundred miles, over country like we've been crossing in

the last week, with a girl! Ray, we'd never make it!"

"It's the only chance."

I said nothing more. I knew that I could stand no such march on my

frozen feet, but I resolved to say nothing about it. I would help them

as far as I could, and then walk out of camp some night. Men have done

just that.

Mildred brought out sacks of the little cakes, and of a red powder

that seemed to be the dried and ground flesh of a crimson mushroom. We

made a pack for each of us, as heavy as we could carry.

* * * * *

Just before we were ready to start Ray took off my footgear and

treated my feet from his medicine kit. I had feared gangrene, but he

assured me that there was no danger if they were well cared for.

Walking was still exquisitely painful to me as we slipped out through

the arched door and into the fungoid forest beyond the three blue

cylinders.

As rapidly and silently as possible we hastened through the brilliant

fungous forest, across the river of opalescent liquid, to the foot of

the fall of fire. A weird and splendid sight was that sheer arc of

shimmering white flame, roaring into a pool of opal light, and

surrounded with a mist of moon-flame.

We reached the foot of the metal ladder spiked to the rocks beside the

fall and started up immediately. The going was not easy. The packs of

food, heavy enough when we were on level ground, were difficult indeed

to lift when one was scrambling up over rungs four feet apart.

Ray climbed ahead, with a piece of rope fastened from his waist to

Mildred's, so that he could help her if she slipped. I was below the

girl. We were halfway up the rock when suddenly a glare of red light

shone upon me, casting my shadow sharply on the cliff. I looked up

and saw the broad, intensely red beam of a heat-ray like that we had

seen the giant crab use.

The ray came, evidently, from the shore of the great lake with its

submerged city of blue cylinders. It fell upon the face of the cliff

just above us. Quickly the ladder was heated to cherry red. The face

of the rock grew incandescent, cracked. Hot sparks rained down upon

us.

Slowly the ray moved down, toward us.

"Guess we'd better call it off," said Ray. "They have the advantage

right now. Better get to climbing down, Jim. This ladder is going to

be burning my hands pretty soon."

* * * * *

I climbed down. Mildred and Ray scrambled down behind me.

The ray followed us, keeping the metal at a cherry red just above

Ray's hands.

I looked down and saw a dozen of the giant crabs lumbering up out of

the fungoid jungle from the direction of the great lake. Hideous

things they were, with staring, stalked eyes, shining green antennae,

polished red shells, claw-armed limbs. Like the one that had passed us

in the upper cavern, they wore glistening white metal accoutrements.

We clambered down, with the red ray following.

I dropped to the ground among them, wet with the sweat of horror. I

reeled in nausea from the intolerable odor of the crab-things; it was

indescribable, overpowering.

Curious rasping stridulations came from them, sounds which seemed to

serve as means of communication, and which Mildred evidently

understood.

"They say that you will not be harmed, but that you must not go out,"

she called down.

I was seized by the pincher-like claws, held writhing in an

unbreakable grasp, while the glittering eyes twisted about, looked at

me, and the shining green tentacles wavered questioningly over me. My

stomach revolted at the horrible odor.

The crabs tore off my pack, even my clothing. Ray was similarly

treated as soon as he reached the ground. Though they took Mildred's

pack, they treated her with a curious respect.

In a few minutes they released us. They had taken the packs, the rifle

and ammunition, our medicine kit and the few instruments we had

brought with us down the shaft, even our clothing. They turned us

loose stark naked. Ray's face and neck went beet-red when he saw

Mildred standing by him.

The rasping sound came from one of them again.

"It says you may stay with me," Mildred said. "They will not harm you

unless you try again to get away. If you do, you die--as father did.

They will keep what they took from you."

* * * * *

Several of the creatures went scraping off, carrying the articles they

had taken from us either in their claws or in the metal cases they

wore. Several waited, staring at us with the stalked compound eyes,

and waving the green antennae as if they were organs of some special

sense.

Two of the creatures waited at the foot of the metal ladder, holding

the long slender white tubes of the heat-ray in their claws.

"They say we can go now," Mildred said.

She led the way toward the edge of the brilliant jungle. She seemed to

be without false modesty, for I saw her glancing with evident

admiration at Ray's lithe and powerful white-skinned figure. We

followed her into the giant mushrooms, glad to escape the overpowering

stench of the crabs.

In a few minutes we arrived again at the strange building of the three

blue cylinders. Mildred, noticing our discomfort, produced for each of

us a piece of white silken fabric with which we draped ourselves.

She had noticed my difficulty in walking on bare feet. She had me

bathe them, then dressed them with a soothing yellow oil, and bandaged

them skilfully.

Astounding Stories, April, 1931 · 第 8 / 9 章