The boys had fully intended removing their shoes and going ashore in their bare feet, but as they started to do so, the men grinned and stopped them. Yorke, with his twisted mouth leering and his gray head streaming with perspiration, lay on his oar and gave them some advice.

"Young gem'men, don't go for to do them foolish things, not in these here seas! First place, that 'ere sand on the island will be hotter'n blazes. Then if ye go wadin' around ye'll get poisoned wi' coral, or ye'll step on little crabs ye can't see, but they'll get under your skin, like; or else ye'll find animiles what'll bore little round holes in your flesh, an' them kind o' things. It ain't safe, young gem'men."

At first the boys thought he was joking, but a glance at old Borden showed that Yorke had been in earnest.

"Don't ye do it," added that soft-voiced seaman, who was so much like Jerry in his ways. "Yorke's tellin' ye true, lads. Things ain't so nice as they looks on these islands, you can take your davy to that!"

At this juncture Daily and Birch also paused to rest. The boys had desisted from their object, and Birch spoke up, his one eye flaming queerly.

"Beggin' your pardon, young sirs, but be you a-goin' to hunt tigers wi' the cap'n?" At the question all four men looked aft at the boys.

"Sure," rejoined Bob happily.

"Not right away, though," added Mart, wondering at the looks and the question. "We're goin' to see the diving first. Later on we'll go ashore after a tiger."

"Give way, there," ordered Borden quietly, but as the four oars dipped Mart caught an odd glance exchanged among the men. He wondered idly what they were thinking of, but they were close on the island now and he was too eager to be ashore to waste any time in vain speculation.

At length the boat ran up on the clean white sand, all leaped out, and she was at once pulled up. Dailey volunteered to stay with her, and the other three men started off to wander on their own account, while the two boys, arranging to be back in an hour or so, started across to the seaward side. The brief ride in the hot sun had quite cured Bob of his romantic notions regarding the rifle, which he now left in the boat, for it was a heavy weight and he had lost his desire to shoot when Mart suggested that it would only alarm those aboard the yacht.