By Lester del Rey

Norden could not trust his own

darkly terrifying thoughts and

impulses. Yet he kept a life

watch over the whole human race.

[Transcriber's Note: This etext was produced from

Fantastic Universe September 1954.

Extensive research did not uncover any evidence that

the U.S. copyright on this publication was renewed.]

_The spread of an alien culture across wide wastes of space, with

its almost inevitable, remorseless destruction of human life, has

chilling implications even for the literal-minded. When mirrored

in the bright, adventurous prism of modern science fiction it

offers unparalleled opportunities to a writer of Lester del Rey's

stature. We're sure you'll agree that he's scored a triumph in this

brilliantly imaginative yarn._

Norden could feel dread knot his mind as he watched the tiny blue speck

against the black sky. It was a senseless, unnatural emotion, and he

knew it. The searing blue point of flame could only mean that the

approaching ship was powered by atomic rockets--and the Aliens drove

their ships in some mysterious manner, without any kind of reaction

motor. The object coming down toward the tiny asteroid could only be of

terrestrial origin, powered by a human device.

Yet his fear grew worse. He shook his head, wondering again how close

to insanity he had drifted. His eyes darted sideways, scanning the

wreckage that had been his laboratory, then back to the descending

ship. Mercifully, he couldn't remember most of what had happened. He

only knew that it had been sufficiently bad to drive any human close to

the brink of madness. It would have been torturing enough to be left

alone for days in a wrecked and airless dome while the oxygen tanks

were used up, one by one. But to have seen Hardwick's face when the

Aliens caught him....

He tried to stop thinking about it. The Aliens were only vague shadows

in his mind now--the picture of what must have happened as remote and

unreal as his memories of struggling free from the wreckage.

Somehow, he'd survived against incredible odds, undetected by the

Aliens. He'd dug out the emergency transmitter and tried signaling for

help. Now apparently, before the last tank of oxygen on his back had

been used up completely, rescue had come. He should have been ecstatic

with relief.

The fear remained, some twisted reaction left over from the days of

terror and hopelessness. He lifted his hands and studied them. They

were steady enough; the fear was having no outward effect.

Already the ship was close enough for Norden to see glints of weak

sunlight reflecting from its metal hull. The pilot must have been one

of the best, for there was no wavering, or side-jetting to correct the

course. It was coming straight down, slowing to a drift. As Norden

stared the exhaust hit the jagged surface of the asteroid and splashed

out. Abruptly it cut off, and the ship dropped slowly the few remaining

feet, to come to rest less than half a mile away.

Norden knew he should start running toward it, and stood up. But he

couldn't give the order to his legs. He stared toward the ship, then

back at the ruins. Maybe there was something he should take with him.

He had air enough for another hour. Surely there was no need to rush

things. Men would be coming here for him. And it wouldn't do any harm

to put off meeting them a little longer. He didn't want to be subjected

to their questions yet.

He started hesitantly toward the ship, trying to force himself to move.

Men began to emerge and head toward him. He dropped onto a mess that

had been a super-speed tape instrument recorder and waited.

His mind was running a rat-race inside his head, and there was a

gnawing tension. He cleared his throat and reached for the switch on

his suit radio. The men were almost up to him. He got to his feet

again, fumbling frantically with the little switch.

Then the harsh beam of a flashlight picked him out, and a gruff voice

sounded in his headphones. "Dr. William Norden?"

He nodded, and rehearsed words stumbled to his lips. "Thank God, you

got here! I was afraid the transmitter wouldn't work!"

There was a hint of something like kindness in the voice. "Take it

easy, Dr. Norden! It did work, and we're here. What happened to

Hardwick? Where is he?"

"Dead, I hope," Norden answered. "The Aliens got him!" He shuddered,

glancing at the spot where it had happened.

The man wearing general's insignia nodded, while sickness spread over

his face. He motioned to one of the others. "Get pics of the wreck, and

collect any records you can. The rest of you give Dr. Norden a hand.

And hurry! They may have spotted us already!"

The man with the camera went resolutely to work, flashing his shots

with a strobe light that blinked twenty-four times a second. Two others

began unrolling a stretcher.

Norden shook his head in feeble protest. "I can walk. And I've already

collected Hardwick's notebooks."

They set a pace closer to a run than a walk, bouncing ludicrously in

the slight gravity of the asteroid. Norden kept up with them easily

enough, trying to make sense of his reactions. Most of the fear and

tension had left him, as if he'd passed over some hurdles, and was

experiencing a resurge of confidence. The military efficiency of his

rescuers had also a bracing effect. Maybe he hadn't believed in his

rescue until now. But he did feel better, though his eyes went on

studying the others cautiously, as if looking for any reaction that

might inadvertently betray them.

They reached the ship, and began pulling themselves through its

flexible hatch. The leader jerked off his helmet and suit, exposing

iron grey hair that contrasted rather startlingly with an almost

youthful face. It was the face of a man who hadn't let himself grow

soft during the years before the Aliens came. He swung toward Norden.

"How much gravity can you take, Dr. Norden?" he asked. "Six g's?"

"In a hammock, for a few minutes," Norden answered.

They were already heading up the ladder toward the nose of the ship.

The general ripped a sling out of its case when they reached the

control cabin. He snapped it to its lugs, motioned Norden onto it,

and bound him in place in less time than he could have ordered the

job done. Then he dropped to his own control seat. "Six g's for five

minutes, then hold her at four until I order. Up ship!"

Norden didn't black out during the first five minutes, though the

pressure was enough to drive the sling to its bottom mark and make its

cables groan in protest. As they switched from six to four gravities,

the pressure eased a little.

An hour crept by, and another. When the general finally ordered the

drive cut, Norden estimated that they had been under acceleration for

nearly five hours and were doing about two million miles an hour.

Either the general was crazy, or the ship must have been stocked to the

last bin with fuel. They were making more than five times the normal

emergency speed.

Then the leader came back and began releasing Norden. "Sorry to give

you such a beating after what you've been through, Dr. Norden," he

said. "But we'll still be lucky if we have enough speed to slip past

their detectors before they can trace our orbit and overhaul us.

They've been getting worse lately."

He sighed, and his lips thinned. Then he shrugged. "We'll talk about

that later. Right now you need food." He managed a smile. "I don't have

to tell you that the doctor and psychiatrist will be biting their nails

to give you the works. Oh, I'm Armsworth."

Norden felt the chill touch his mind again. He'd expected a doctor, and

had been bracing himself for one. But the _psychiatrist_.... He forced

calmness into his voice. "I could eat a horse!"

"You probably will," Armsworth told him with quick, automatic humor.

"This is the Space Service!"

The little cabin to which Armsworth took him was crowded alarmingly.

There were the two men waiting for him, with their specialized

equipment. In addition, there was the forbidding bulk of a large

recording machine ready to take down every word he uttered.

He acknowledged the introductions, and downed a glass of some

over-sweetened fruit juice which the doctor held out.

"It will get you ready for some real food," the physician told him.

"Would you like to clean up while I look you over, before the main

course comes?"

Norden seized on the chance. It would give him something to do beside

tormenting himself, and it was obvious he needed grooming. His dark

hair was matted, his face marked with dirt that had sunk into every

wrinkle and line, and there was a thick growth of stubble on his skin.

It was a thin, fairly good-looking face, as unfamiliar as if he'd just

seen it for the first time in a photograph. He seemed to have forgotten

_himself_, even.

While he washed and shaved, the doctor was busy. But the examination

was less detailed than he had expected it would be, and finally the man

stood back, nodding.

"For someone nearing forty, you're in excellent shape, Dr. Norden," he

said. "You had a rough time of it, but I was sure you'd be all right

physically when I heard you hadn't blacked out under high acceleration.

Okay, go ahead and eat."

He moved toward the door, but showed no sign of leaving until his

curiosity could be satisfied.

Norden had to force himself to eat, for he had no apparent appetite.

The psychiatrist leaned forward casually, watching him. "Would you like

to tell us about it, Dr. Norden?" he asked. "Precisely what happened to

Hardwick?"

Norden shook his head, while the tension mounted again. The man would

be on the alert for hidden meanings in his words, and he wasn't quite

ready for that. Yet he was afraid to risk putting it off. "I'm not sure

I can tell much. I--well, everything's pretty foggy. A lot of it I

can't remember at all."

"Partial amnesia is fairly common," the psychiatrist said reassuringly.

"In fact, everyone has touches of it. Try going back a bit--say to your

childhood--to give you a running start. We've got plenty of time."

Norden had little interest in his childhood, and he skimmed over it

with a few words. He'd done nothing unusual until he'd drifted into the

new investigation of radiation outside the electromagnetic spectrum in

his post-graduate college work. Then he'd suddenly developed, caught

fire, and become something of a genius.

He was the first man ever to prove there was more than theory involved.

He'd been called to Mars for the Widmark Interplanetary Award for his

brilliant demonstration of protogravity after he'd floated two ounces

of lead with a hundred thousand dollars worth of equipment that used

twenty kilowatts of power.

In fifteen years at Mars Institute, he'd discovered four new types of

extraspectral radiation, become a full professor, and had _almost_

discovered how to harness nuclear binding energy.

Then the Aliens had come. They had appeared abruptly near Pluto,

apparently coming at a speed greater than that of light, in strange

globular ships that defied radar detection. Without provocation or

mercy, they had sought out and destroyed every settlement between Pluto

and Saturn, and had begun moving inward, systematically destroying all

life in their path.

Nobody had ever seen an Alien--they invariably exploded to dust before

they could be captured--but the horror of their senseless brutality was

revealed in the hideous human corpses they left behind them.

Norden had been drafted while there was still optimism. Men could build

a hundred ships to the Aliens' one, equally radar-proof, free from

danger of magnetic or electronic detection, and nearly invisible in

space. In anything like an even battle, men were certain to win. But

they soon discovered it wasn't an even battle.

The Aliens had some means of detecting human ships accurately at

distances of millions of miles, and blasting them with self-guided

torpedoes, while remaining undetected themselves. And behind the

torpedoes would come the dark globular ships to spray the wreckage with

some force that left every cell utterly lifeless.

Hardwick had been a quasi-scientist, mixed up with certain weird cults,

who maintained a private laboratory on an asteroid near Jupiter's

orbit. And in the desperation that followed the first foolish optimism,

his theory that the Aliens could detect life itself, or the presence of

the questionable mitogenetic rays that were supposed to radiate from

nerve endings, was actually taken seriously.

Surprisingly, the tests indicated that remote-controlled ships which

had been completely sterilized went undetected, while ships carrying

rats or other life were blasted. Norden, as the expert on all strange

radiation, had been sent to work with Hardwick in attempting to devise

a screen for the hypothetical life radiation.

He never learned whether Hardwick was a wild genius, or an even wilder

lunatic. While he was wearing Hardwick's improvised shield during one

of the attempts to test it, the Aliens had landed and broken in.

"What did they look like?" the psychologist asked casually--too

casually, Norden felt.

"Well, they--" He frowned, trying to remember, but a clamp came down

over his mind. "I--I can't remember. And they did--something--to

Hardwick. I--I...."

Armsworth brushed the other question aside. "Never mind. You were

wearing Hardwick's shield. Didn't they notice you?"

Norden shook his head doubtfully. "No, I don't think they did. It's all

horribly blurred. I think I jumped for the spacesuit locker when they

breeched the airlock on the dome. I must have gotten into a suit, and

been hidden by the locker door. And I must have run out after they took

Hardwick away."

At least he hadn't been hurt when the Alien bomb ruined the dome. He'd

dug out the transmitter, sent the message, and then had spent the

agony of waiting in trying to decipher the cryptic code in Hardwick's

notebooks.

They went over his account several times, but he could tell then little

more. Then there were tests, some of which he could understand and

answer without trouble, while others left him taut with uncertainty and

etched worried lines into the face of the psychiatrist. But at last the

man nodded doubtfully.

"I think he'll do," he reported hesitantly to Armsworth. "A traumatic

experience always leaves scars, but...."

"But or no he'd better do," Armsworth said gruffly. "No wonder they

ordered us out to pick him up! He was within fifty feet of the Aliens,

and they didn't locate him! Dr. Norden, if that shield works and you

can duplicate it, you'll be the most valuable man alive!"

"And the tiredest and sleepiest," Norden suggested. His eyes narrowed,

and his mind darted about, seeking some sign of the wrong reaction.

Then he relaxed as the doctor and psychiatrist picked up their

equipment and went out with advice he hardly heard. Armsworth lingered,

and Norden searched about in his mind for what seemed to be a safe

question.

"How long until we reach Mars, general?" he asked.

"We don't!" Armstrong's voice was suddenly thick and bitter. "We've

abandoned Mars. The Aliens have moved inward. We--oh, hell, we'll reach

our new laboratory on the Moon base in about four days! And you'd

better start praying that shield works, or my value to you won't be

worth salvaging."

He shrugged abruptly and left, closing the cabin door quietly behind

him. Norden slumped down on the bed, not bothering to remove his

clothes.

Automatically, he lifted his arms until both his hands were pressing

against the nape of his neck, settled into a comfortable position

against the automatic straps, and began reviewing all the events of his

rescue carefully. And bit by bit, the worry in his head quieted. He'd

gotten away with it. What "it" was, he didn't know or even remotely

suspect, but the horrible tension was gone.

The life watch · 第 2 / 9 题