“Where does that lead to, do you know?” asked the senator’s son.
“Leads to a spring o’ fresh water an’ half a dozen big caves,” was the reply.
“Caves?” queried Dave. “Then perhaps the fellows, who ran away, took to one of the caves.”
“Like as not, messmate. Them two chaps have been explorin’ them caves ever since we came ashore.”
“Let us walk back and have a look,” suggested our hero. “We may be able to give Phil and Captain Sanders some assistance.”
Without further delay, the two boys left the camp of the castaways and hurried along a small trail through the bushes. They soon came to a rocky depression in the midst of which was a tiny spring.
“That water looks good,” exclaimed Dave. “Let us get a drink.”
“Perhaps it is poisonous, Dave.”
“If it was, I think those sailors would have warned us.”
They found the water fairly cold and of a good flavor, and each drank his fill. Then Dave flashed the electric light around. Ahead they made out a series of rocks, with here and there a gloomy opening, leading to unknown depths.