“See? See what?” said the lad, staring.
“What I said.”
“How could any one see what you said!” cried Mike, ready enough to laugh now that his companion was out of danger.
“Oh, don’t be stupid at a time like this!” grumbled Vince excitedly. “Once water begins to eat away, it goes on eating a channel for itself, like it does at the waterfall over the other side of the island. Well, this must have cut itself a way along. It’s quite a big, sloping passage, and it must go down to the shore. Can’t you see now?”
“I don’t know. Do you mean that hole leads down to the shore?”
“Yes, or into some cavern like the great holes where the stream runs out into the sea.”
“Then it would be a way down into the Black Scraw?” cried Mike excitedly.
“Of course it would. Why, Mikey, we’ve found out what we were looking for!”
“You mean you tumbled upon it,” said Mike, laughing.
“Tumbled into it,” cried Vince, whose face was flushed with eagerness. “Come on down, and let’s have a look if I’m not right.”