2 was a mystery.

The tavern-keeper's young son said it was kept locked all the time, and he never saw anybody go into it or come out of it except at night; he did not know any particular reason for this state of things; had had some little curiosity, but it was rather feeble; had made the most of the mystery by entertaining himself with the idea that that room was "ha'nted"; had noticed that there was a light in there the night before.
"That's what I've found out, Huck.

I reckon that's the very No.

2 we're after." "I reckon it is, Tom.

Now what you going to do ?" "Lemme think." Tom thought a long time.