"Elephant!" he whispered. "Him close! Come!"

No sign of elephant could Charlie or Jack see until they had advanced another hundred feet in the half-gloom. Then the guide pointed out the spoor, deep and heavy in the damp leaves that matted the trail. Here the natives squatted down to wait, and here also the boys made a discovery.

Charlie had stepped ahead, a little to one side of the trail. But as he did so the guides started forward in silent dismay. He paid no attention to them, trying to peer through the dense vegetation; suddenly it seemed that everything gave way beneath him, and the next moment his legs were dangling in vacancy, while he gripped the vines and sticks spread over a great hole dug at one side of the track.

The others broke into quiet laughter at his amazed expression, while the guides pulled him out hurriedly and silently. Then he saw that he had tumbled into an elephant pit—a long, deep trench, narrowing at the bottom.

"I told you you'd see something," whispered the explorer, as Charlie recovered himself, somewhat disgusted. "Now let's get busy on the trail."

By lighting a match and by watching the tree-tops far overhead they ascertained that the wind was right for an approach, and with guides and gun-bearers they started off on the spoor.

"How many, do you think?" asked Schoverling cautiously. Jack had been studying the signs intently, and answered without hesitation.

"About eight females, three little fellows, and a big chap."

"Just what the guides say," grinned the explorer delightedly. "Pretty good, eh, Doctor? We were lucky in finding them so near camp."

The trail was now marked by freshly broken branches and splintered trees, while in places the bushes were trampled down for yards, where an elephant had stopped to feed. Charlie declared that the animals were not more than half an hour ahead of them, at which the explorer nodded.