"This is a place of mystery.

Know where the water went?
There's a passageway down here; it's big enough to crawl through.

Ouch!" "Tell me the truth," I said, "you're hurt." "I'm in a very critical condition from a swollen wrist," he said; "shut up, will you! There's a secret passageway or something or other down here.

Where do you suppose it goes ?" "Hanged if _I_ know," I said; "what about Skinny ?" "He's breathing, that's all _I_ know," he said.
For a couple of minutes I sat on the edge thinking and I could hear him down there.

I didn't know what he was doing.
Then I called, "You know Rebel's Cave, don't you?
Above the shore south of Nick's Cove--near the outlet?
Maybe it comes out there--the passage, I mean." "What makes you think so ?" he called.
"I don't say I think so," I said; "only there's a kind of a passageway that goes into the hills there.