It was miles in extent, and was a tangled wilderness of narrow and lofty clefts and passages.

It was an easy place to get lost in; anybody could do it--including the bats.

I got lost in it myself, along with a lady, and our last candle burned down to almost nothing before we glimpsed the search-party's lights winding about in the distance.
"Injun Joe" the half-breed got lost in there once, and would have starved to death if the bats had run short.

But there was no chance of that; there were myriads of them.

He told me all his story.