"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.
"This is Cave Island and no mistake," was our hero's comment. "The place seems to be fairly honeycombed."
"Be careful that you don't go into a hole and drop out of sight," warned his chum.
They walked to the entrance of one of the caves and peered in. All was dark and silent. Then they went to the next cave. Here they caught a glimmer of light.
"Somebody is moving in here!" exclaimed Dave. "A man with a torch!"
They waited, and presently saw that two persons were approaching slowly, having to pick their way over the uneven rocks.
"They are the captain and Phil," cried Roger, and set up a faint call.
"Hello! Who is that?" answered the captain of the Golden Eagle.
"Dave and Roger!" cried Phil. "Oh, say,"
