"It would hardly seem to me," observed Professor Ditson, scathingly, "that a man who is afraid of a harmless arachnid like a whip-scorpion, and who nearly falls out of a canoe at the sight of a manta-ray disporting itself, would be the one to lead an expedition through the unexplored wilds of South America. We are going into a country," he went on more earnestly, "where a hasty step, the careless touching of a tree, or the tasting of a leaf or fruit may mean instant death, to say nothing of the dangers from some of the larger carnivora and wandering cannibals. I have had some experience with this region," he went on, "and if there is no objection, I will outline my plan."
There was none. Even Jud, who had removed himself to another chair with great rapidity, had not a word to say.
"I propose that we take a steamer by the end of this week to Manaos, a thousand miles up the Amazon," continued the professor. "In the meantime, we can do some hunting and collecting in this neighborhood. After we reach Manaos we can go by boat down the Rio Negros until we strike the old Slave Trail which leads across the Amazon basin and up into the highlands of Peru."
"Who made that trail?" inquired Will, much interested.
"It was cut by the Spanish conquerors of Peru nearly four hundred years ago," returned the scientist. "They used to send expeditions down into the Amazon region after slaves to work their mines. Since then," he went on, "it has been kept open by the Indians themselves, and, as far as I know, has not been traversed by a white man for centuries. I learned the secret of it many years ago, while I was living with one of the wilder tribes," he finished.
The professor's plan was adopted unanimously, Jud not voting.
Then followed nearly a week of wonderful hunting and collecting. Even Jud, who regarded everything with a severe and jaundiced eye, could not conceal his interest in the multitude of wonderful new sights, sounds, and scents which they experienced every day. As for Will, he lived in the delightful excitement which only a bird-student knows who finds himself surrounded by a host of unknown and beautiful birds. Some of them, unlike good children, were heard but not seen. Once, as they pushed their way in single file along a little path which wound through the jungle, there suddenly sounded, from the dark depths beyond, a shriek of agony and despair. In a moment it was taken up by another voice and another and another, until there were at least twenty screamers performing in chorus.