At the first sight of the water shining in the sunlight, Pinto showed signs of great uneasiness.

"This must be the Lake of the Man-eaters," he said to Professor Ditson. "I have heard the wise men of the tribe speak of it many times. All the animals around it are eaters of men. See, perhaps there be some of their tracks now!" and he pointed to where there showed in the soft sand what looked like the paw-prints of a huge cat.

"Pinto," said the professor, severely, "I'm ashamed of you! The sight of those Mayas has made your mind run on man-eaters. Don't you know a puma's track when you see them, and don't you know that a puma never attacks a man?"

"The perfesser's right for once," chimed in Jud. "That's the track of what we call a mountain-lion or panther up north, an' they don't never hurt nobody."

Pinto was still unconvinced. "Perhaps they do here," he insisted.

"You come along with me," returned Professor Ditson. "We'll explore this lake a bit before dark." And, followed by all of the party except Will and Jud, whose turn it was to make camp, he disappeared around a bend in the shore.

The two who were left behind soon found a high, sandy bank where they cleared a space and started a small fire. Just in front of them was a tiny bay, connected with the lake by a narrow channel edged by lines of waving ferns, while a little beach of white sand curved away to the water in front of the camp-site.

"Here is where Judson Adams, Esquire, takes a bath," suddenly announced the old trapper, producing a couple of cakes of tree-soap, which he had picked along the trail, and slipping out of his clothes like an eel.

"Pinto said never to go into strange water," warned Will.

"Pooh," said Jud. "He was talkin' about rivers where them murderin' catfish an' anacondas hide. This pool ain't ten feet across an' there's nothin' in it except a few stray minnies"; and he pointed out to Will a little school of short, deep-bodied fish which looked something like the sunfish which the boys used to catch along the edges of Cream Hill Pond. Otherwise no living creature showed in the clear water, nor could be concealed along the bright, pebbly bottom.