After a night of tossing and turning, Tom decides the previous evening's events were just a dream.
His hypothesis is quickly proven wrong. Turns out Huck remembers it too. So Tom and Huck set out trying to figure out where the money is hidden.
Tom decides that "Number Two" must refer to a room number in one of the town's two taverns. He heads out to do some research One of them, he quickly finds out, has been occupied by a lawyer, but the other is one is a mystery; according to the tavern keeper's son, it's always locked and is, perhaps, haunted.
Tom comes back and tells Huck what he's found; he's sure the treasure's hidden in the "mystery" room.
They plan on breaking into Number Two that evening. The two decide to gather up as many keys as they can – locks worked a bit differently back then – and keep an eye out for Injun Joe.