CHAPTER VII

THE BLACK BEAR IN TROUBLE

One still night on the Amazon Jack Bosworth got out a map and turned

a flashlight on it. Frank and Harry stood looking over his

shoulder.

"Right here," Jack said, presently, "is where we leave the main

stream of the Amazon and take to the Madeira."

"How do you know that stream is the Madeira?" asked Frank. "We have

passed so many large tributaries that I'm all mixed up."

"And why not try some other stream?" Harry questioned. "I've heard

that the Madeira is full of falls and rapids."

"Anyway," Jack insisted, "it takes us away up into the Andes, almost

to Lake Titicaca, and that's all any stream will do. As for the

falls and rapids, do you expect any stream to creep down from that

great plateau without jumping off occasionally?"

"All right," Frank cut in. "Go your own way to destruction! But

how do you know that rippling sheet of water off there," swinging an

arm to the south, "is the Madeira river? It looks like a lake to

me."

"I found out while you were asleep this morning," Jack replied. "A

chap came along in a launch and I asked him all about it. He said

he had just come from the Andes, and advised me to turn back."

"Kind-hearted little fellow, eh?" laughed Harry.

"He wasn't very little," answered Jack. "He was six feet two, and

was coming out with a finger off and a cut across a cheek bone which

will last him for a spell, I guess. He cut his finger off because a

poisoned arrow struck it."

"Cannibals?" asked Harry, with a laugh.

"The same," replied Jack. "Said they chased him for miles."

"We'll curb their appetites with lead," Harry observed.

"If we see them first," added Jack.

So the Black Bear was turned into the Madeira river, which is

something like seven hundred miles long, and drains the wooded

country where the black sheep of the land of Brazil live. Away up

in the hills it is fed by the Beni river, which has its source in

the mountains east of Lake Titicaca.

More than once the boys were obliged to haul their motor boat out

on a rocky "bench," take it to pieces, carry it and most of the

stock around rapids, and then put it together and load up again.

Still, they made good time, and on the evening of the third day

found themselves at the junction with the Beni river.

They were now in a wild and dangerous country. The forests swarmed

with wild game, the thickets were full of serpents, and the trees

were often crowded with monkeys. For two days they had seen no

natives. This was suspicious as it was certain that they had

penetrated to the home of the cannibal tribes so greatly dreaded by

hunters and explorers.

It was on the evening of the 21st of August that Jack sent the Black

Bear into a little creek, shut off the power, and turned to put up

the panels. It was not very warm, but the atmosphere was sticky and

heavy with the breath of the woods.

"We'll smother in there tonight," Frank said, observing the actions

of the other. "Why not leave some of 'em out?"

"If you want a poisoned arrow nestling in your ribs you can sleep

outside," Jack answered. "For my part, I want to wake up in this

good old world in the morning."

"I don't think there's any danger yet," Frank said.

But the panels were put up and supper prepared. By this time the

lads had become accustomed to preparing their own meals, as well as

providing the fish from the river, and the repast was soon over.

Then Jack lay back and gazed through the one glass panel of the top

of the Black Bear.

It was a dark, lowering night. The wind is usually from the east in

that part of Brazil. Blowing over the Atlantic it gathers up

moisture to dump on the eastern slope of the Andes. The summits

drain the clouds and makes Peru a dry country. It was murky now,

and the clouds hung low.

"What do you see up there, Jack?" asked Frank. "Trying to study

astronomy, with not a star in sight?"

"There you are wrong," Jack replied. "There is at least one star in

sight."

"With that mass of clouds drifting over the sky?" laughed Harry. "I

reckon you must be seeing things not present to the senses!"

"Come and look, then," Jack invited. "Look straight up, and you'll

see a star."

Frank placed himself under the glass panel and looked up.

"Well?" Jack demanded, in a tone of triumph.

"It's something," Frank exclaimed, "but I don't believe it is a

star."

"It may be a reflector at the top of the Flatiron building," grinned

Jack. "What is it, if it isn't a star?"

"Look yourself!" cried Frank.

The boys were all looking now. They saw the light which Jack had

mistaken for a star flashing to and fro under the clouds like a

firefly. It rushed earthward with amazing speed for an instant,

then spiraled upward again. Once it came directly over the Black

Bear, and seemed about to drop down.

Jack threw a couple of panels open, and then the whirr of motors

reached their ears. Frank sprang outside and turned a flashlight

upward.

"There's your star!" he shouted to Jack.

"Quick!" Harry cried. "Wigwag with that light. It is the Nelson!

They may be able to see us!"

"Yell, every soul of you!" directed Frank. "Yell! She is going

away!"

The boys waved their lights frantically and shouted at the top of

their voices, but the light in the sky crept away to the west and

soon disappeared, evidently passing above the clouds which lay like

a black blanket over the Brazilian forests.

"Great heavens!" Jack sighed. "If we could only have made them

hear! I'll bet they've been to Paraguay and released Lyman. Now

they're going back home! Fine show we now stand of having any fun

with them!"

"They went west," Harry corrected. "That isn't the way home!"

"I'd like to know just what success they have had," Jack went on.

"Say," he continued, "can't we do something to attract their

attention? Why not set fire to some big dry tree and let her blaze

up?"

"I just can't have it this way!" Harry said. "I can't stand it to

have them come so close to us and then go away without knowing we

are here. We've got to bring them down in some way."

"But they've gone!" Frank declared, gravely.

"If we make a big blaze," Jack hastened to say, "the reflection on

the clouds will attract their attention, and they'll come back.

They won't be able to see the fire itself, of course, but they'll

see the reflection, and that will bring them down to investigate.

Then we'll fire our revolvers and wigwag with blazing sticks until

they see who we are."

"It may not be the Nelson," Harry suggested.

"I don't believe there's any other aeroplane sailing about the roof

of the world," Frank replied. "Of course it is the Nelson!"

"Perhaps the Nelson was followed," Harry went on. "I've heard of

such things. The chap in that machine may be looking for Ned.

Anyway," he added, "it won't do any harm to let the aviator, whoever

he is, know that we are here. Come on, let's go ashore and build a

big fire."

"I certainly would give a year's growth to know whether that is the

Nelson," Harry said, as the boys sought the shore and began

gathering dry wood, which, it may be well to add, was not easy to

find, as there had been quite a shower during the day. "For all we

know," he continued, "there may be another aeroplane here. If the

people who are trying for the Lyman concession are as active here as

they seem to have been in Paraguay, they may have half a dozen

airships out after the Nelson."

Finally a quantity of wood which was fairly dry was secured, and

Jack bundled it up against a dead tree which seemed to run straight

up into the sky until it touched the clouds. But when the boys came

to apply matches they discovered that the wood was not dry enough to

be ignited in that way.

"I'll get a gallon of gasoline and pour over it," Frank explained.

"Then we can run like blazes when we touch her off. What?"

The gasoline was brought, and the blaze started with a mighty

concussion of the air. A portion of the highly inflammable fluid

had entered a great crevice in the dead tree, with the result that

there was an explosion which resounded through the forests for

miles. Then the flames mounted the tree, which was soon blazing

like a great torch.

"I guess that will attract their attention!" Jack said, shielding

his face from the intense heat.

"Yes," Frank replied, "and I'm afraid it will attract the attention

of others, too. You know we were told to sneak through this country

like little mice!"

"It is too late now!" Jack said, a shadow of anxiety coming over his

face. "We are in for it, I guess. What shall we do?"

Above the crackling of the flames, above the drawing and sighing of

the wind, there now came a strange sound which seemed to proceed

from the fire-tinted clouds above. Now and then branches of the

nearby trees stirred mysteriously, and at times a wild shriek rose

above the monotonous chattering.

"Monkeys!" cried Jack. "They've come out to help us bring the

airship to earth. Good little beasts!"

"Don't be in too much of a hurry to give the little devils a

certificate of good character!" Harry answered. "They may make

trouble for us."

After a time the foolish, wrinkled faces of the monkeys were seen

peering from trees. Then, above the din they made, above the

crackling of the fire, constantly mounting higher, came a scream

almost like that of a child.

"That's a jaguar!" Harry declared, "a South American tiger, and we'd

better be getting toward the boat."

"The animals won't come near the fire," Frank said. "We may as well

remain here and see the menagerie."

Directly it seemed to the excited lads that all the wild animals in

South America were assembled about their signal. Harry declared

that he heard the call of the red wolf, the scream of the tiger cat,

the wail of the puma, the vicious snarling of the wild dog.

While the boys listened to the chorus their efforts to attract the

attention of the aeroplane had produced, there came into the discord

another sound--the hissing of a monster serpent. Heretofore the

boys had little to do with Brazilian forms of animal life, for they

had kept near the middle of the main stream of the Amazon, and also

about in the center of the Madeira and the much smaller Beni, which

was only a creek when compared with the other rivers.

Occasionally they had seen a monster cayman nosing against the

current, and at times their progress had been retarded by turtles,

but they had never before seen anything like this. Their fire had

certainly brought out a combination in nature which would have been

decidedly interesting if it hadn't been so threatening.

"Me for the boat!" Jack said, with a shiver, as the serpent launched

his head and a third of his body from the tree and swept about in

widening circles. "I never could endure snakes!"

"I'm going to take a shot at it," Frank said. "I'd like to see him

take a tumble into the fire."

"Better let him alone," Harry advised.

Frank was about to fire when Jack caught his arm and held up his

hand in a listening attitude.

"What is it?" Frank asked.

"Human voices!" was the quick reply.

"Inhuman voices, I should say," Harry observed, after a second of

silence.

A chant unlike anything the boys had ever heard before undulated

through the forest. It rose and fell with the gusts of wind, and

always nearer to the fire.

"This is a new one on me!" Jack cried. "It is also another reason

for getting to the boat! Come on, fellows!"

"I'm not going to run until I find out what that is," insisted

Frank. "I'm going to write a newspaper story about this menagerie!"

"If you want your story published in this world," Jack cried, "you'd

better get under cover, for that's the chant of the head hunters!"

"Wow!" cried Frank, and he beat both his chums to the boat.

"I guess we've started something!" Jack said, as he busied himself

putting up the few panels which had been removed when they went

ashore. "Now, some one push that button, and I'll get the Black

Bear out of this creek. A good old scout like the Black Bear has no

business associating with the wild animals on shore."

"Right you are!" shouted Harry, and the propellers began moving.

Still, the boat made no progress to the rear, the reverse being on.

"What's doing?" demanded Jack. "You'd better hurry, for the head

hunters are coming right along. See that big chief over there?

He's got a club that would level the Singer building at a blow!"

"I can't make her back," Harry complained. "There's something the

matter below her in the stream. It was all clear when we came in."

In an instant all was intense excitement on board the motor boat.

There was only one way in which the savages could reach them, and

that was to block their passage out and starve them to death! Had

this system been resorted to? Had the cunning savages obstructed

the little stream while the lads were busy building their fire and

observing their menagerie, as they called it?

These questions were in the minds of all as efforts to back the

Black Bear were redoubled. Finally Jack opened a panel at the rear

and looked out, a thing he should have done at first.

What he saw was a large log blocking the channel. The propellers

were pounding against it, and one of them was broken.

"I guess the little brown men have got us good and plenty," he said,

slowly, as he reached forward and shut off the power. "While we

were playing about the blaze they plugged the river."

"They can't get in here, anyway!" Frank consoled.

"No; they'll wait for us to get good and hungry and go out!" Jack

replied.

The situation was a serious one. The head hunters now appeared in

the open space about the blazing tree and shook their spears and

their clubs at the boat. Now and then an arrow with a poisoned tip

struck the side of the Black Bear.

"They'll never leave until they get us!" Jack said, presently, "and

so we may as well get a few of them. Get your guns, boys."

"Just you wait, old hard luck prophet," Frank exclaimed. "Look up

through the glass panel above your head and tell me what you see."

"Well," Jack replied, "it looks like we had established

communication with the Nelson at last. And also with the Greatest

Show on Earth!" he added, as a mighty roar went up from the shore.

The other boys crowded the panel and looked out. The clouds above

were red with the reflection of the blazing tree, yet against the

mass a different light blazed out. This light moved about, from

north to south and back again, as if searching out the reason for

the strange happenings below.

The popping of her motors could be plainly heard, and so it was

probable that those on the airship could hear the wild animal

concert which was going on in the woods. Harry pushed a panel aside

and fired three quick shots. The aeroplane wavered above the river

a moment and then drifted away.

"They must know there's somebody down here in trouble!" said Harry.

"Why don't they throw down dynamite? That would give the savages

all the heads they wanted for a time, I guess."

The boys fired again and again, flashed their lights in wigwag

signals, but the aeroplane did not come nearer. Instead it whirled

swiftly about in a circle for a moment and then shot out of sight

beyond the clouds.

And every moment the circle of savage faces gathered closer about

the Black Bear, effectively blocked in the narrow stream.

Boy Scouts in an Airship; Or, The Warning from the Sky · 第 7 / 18 章