Presently, in the midst of the jungle, they came to a small clearing. Here there was a rocky hollow, and they found a bubbling spring of pure, cool water.

“Say, this is worth while!” exclaimed Jack, after each of them had taken a drink. “I wish we had this spring near the camp,” he added as they sat down to rest and eat their lunch.

“Look on the ground, will you!” exclaimed Randy, suddenly. “Look at those footprints! What do you make of them, Jack?”

Both gazed at the soft ground in the vicinity of the spring, and there saw a number of footprints evidently made by some wild animals.

“What animals do you suppose they can be?” questioned Randy.

“I don’t know. In fact, I don’t know what sort of wild animals exist on these islands. They are certainly not the marks of horses or cows or sheep, or anything like that.”

“If there are any wild animals in this jungle, we’d better be on our guard.”

“I should say so! I wish we had brought one of the shotguns along.”

“So do I.”