The Dodger leads them both to a bar - the Three Cripples. He may have understated it a bit, it's filled with a lot of people who would have once been termed as the "criminal classes" of London. Of course, to the Dodger, these are friends, neighbours, and other things along that line.

He wanders up to the bar, grinning, and speaks to a lady he calls Bet, before wandering to a table and gesturing for Sirius to come over.

"Bet'll see us right, don't you worry."