“What?” said Mike.

“That dark bit there?” and Vince nodded to a spot in the gloomiest part of the cavern, right up in one corner, where the roof rose highest.

“Crack in the rock. There’s another just beyond.”

“Yes, a regular split. Hope it don’t mean that the roofs going to tumble in.”

“Not just yet,” said Mike, gazing up curiously at the fault in the granite stratum. “We might try where it goes to.”

“Want a ladder,” said Vince; “and you may carry it, for I’m not going to try and bring that sort of thing down here. I say, there’s the place to make a fire, just by the mouth, and then the smoke will all go up outside; and we can wash our fish and keep the place clean. Those pools will be splendid. There’s one deep enough to bathe in.”

“There, I tell you what,” said Mike; “we’ve got about as splendid a place close to home as any fellows could find if they went all over the world. I say, though, how we could laugh at old Joe if we brought him down and showed him the Scraw has about as beautiful a cave as there is anywhere!”

“I say, don’t talk about it. I wouldn’t have any one know for the world; and do be careful about smuggling things down here.”

“Don’t you be afraid of that,” said Mike. “Hi, look! There’s a shoal of fish out there. Mackerel, I think.”

“Oh, the place teems with fish, I’m sure,” said Vince, as he watched the shimmering of the surface just in a smooth patch beyond where the sea was troubled. “Now, then, shall we go and look at the other place before we go back?”