ot out a map and turned a flashlight on it. F

"is where we leave the main stream o

ra?" asked Frank. "We have passed so many

Harry questioned. "I've heard that th

aca, and that's all any stream will do. As for the falls and rapids, do you expect

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

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

ttle fellow, eh?

out with a finger off and a cut across a cheek bone which will last him for

asked Harry,

Jack. "Said they c

appetites with lea

them first,

long, and drains the wooded country where the black sheep of the land of Brazil live. Away up in

carry it and most of the stock around rapids, and then put it together and load up again. Still, they m

ts, and the trees were often crowded with monkeys. For two days they had seen no natives. This was suspicious as it

a little creek, shut off the power, and turned to put up the panels. It was not

k said, observing the actions of the o

u can sleep outside," Jack answered. "For my part, I w

ere's any danger

preparing their own meals, as well as providing the fish from the river, and the repast was s

ng over the Atlantic it gathers up moisture to dump on the eastern slope of the Andes. The sum

asked Frank. "Trying to study as

ck replied. "There is at

e sky?" laughed Harry. "I reckon you must

k invited. "Look straight

f under the glass p

emanded, in a

exclaimed, "but I don'

at the top of the Fla

s it, if it i

rself!" c

nd fro under the clouds like a firefly. It rushed earthward with amazing speed for an instant, the

the whirr of motors reached their ears. Frank

star!" he sh

"Wigwag with that li

be able t

u!" directed Frank. "Ye

ut the light in the sky crept away to the west and soon disappeared, evidently pa

I'll bet they've been to Paraguay and released Lyman. Now they're g

rry corrected. "That

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

t to have them come so close to us and then go away without k

one!" Frank de

ll come back. They won't be able to see the fire itself, of course, but they'll see the reflection, and that will bri

the Nelson,"

ne sailing about the roof of the world," F

hat machine may be looking for Ned. Anyway," he added, "it won't do any harm to let the avi

e 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

d tree which seemed to run straight up into the sky until it touched the clouds. But when the boy

gasoline and pour over

ke blazes when we t

ammable fluid had entered a great crevice in the dead tree, with the result that there was an explosion which res

attention!" Jack said, shieldin

ct the attention of others, too. You know we were t

w of anxiety coming over his face. "We a

ange sound which seemed to proceed from the fire-tinted clouds above. Now and then branches of the

ome out to help us bring the airs

ittle devils a certificate of good character!"

from trees. Then, above the din they made, above the crackling of the fi

"a South American tiger, and we'd

ire," Frank said. "We may as well

assembled about their signal. Harry declared that he heard the call of the red wolf,

e 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

en retarded by turtles, but they had never before seen anything like this. Their fire had certainly brough

aunched his head and a third of his body from the tree and sw

" Frank said. "I'd like to see h

him alone,"

ck caught his arm and held up h

it?" Fr

s!" was the

d say," Harry observed,

re undulated through the forest. It rose and fell wi

d. "It is also another reason for ge

n until I find out w

rite a newspaper story

ld," Jack cried, "you'd better get under cove

and he beat both h

en removed when they went ashore. "Now, some one push that button, and I'll get the Black Bear out of thi

ted Harry, and the pr

o progress to the rear

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

There's something the matter below her in th

m, and that was to block their passage out and starve them to death! Had this system been resorted to? Had the cunning savage

he Black Bear were redoubled. Finally Jack opened a panel at

e channel. The propellers were pounding

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

in here, anyway!

to get good and hungry

ace about the blazing tree and shook their spears and their clubs at the boat

ack said, presently, "and so we may as wel

k exclaimed. "Look up through the glass pane

ication with the Nelson at last. And also with the Greatest Sh

the blazing tree, yet against the mass a different light blazed out. This light moved about, fro

p could hear the wild animal concert which was going on in the woods. Harry pushed a panel aside

Harry. "Why don't they throw down dynamite? That would give

but the aeroplane did not come nearer. Instead it whirled swiftly abou

es gathered closer about the Black Bear,