Wait a moment till I get out my knife." There was a pause, during which Mike climbed round to the end where Vince was trying to get out; and he was there by the time his companion began hacking at the brambles with his big knife, first his arm appearing and soon after his head, as he chopped away, getting himself free, and seizing the hand extended to him from where Mike knelt and reached down.
"Hah!" cried Vince, as he climbed on to one of the rugged blocks, "that wasn't nice.

It slopes down from here, so that where I fell through I must have dropped a dozen feet; but I came down standing, and then fell this way on my hands and stopped myself from sliding, when a lot of stones that had been waiting for a touch went down." "But are you hurt ?" cried Mike anxiously.
"Not much: bit bruised, I suppose.

But I say, isn't it rum?
There must have been water running to make a place like that.

It must have come all along the bottom, where we've been creeping, and run down here, eating its way, like your father and mine were talking about one evening." "I'd forgotten," said Mike.

"But if it ran down there, where did it go to ?" "Down to the sea, of course, and--I say, Mike, don't you see ?" cried Vince excitedly.
"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.