"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?"