Dodger: Terry Pratchett

The sewer is Dodger's world...
He hunts treasure there - coins and jewels lost in the dark and dirty drains. It's a good life, if you don't mind getting your hands (and arms and feet and face) dirty.
But one night, Dodger helps a young woman flee two ruffians. Now, a street urchin dressed as a gentleman, he must discover the secret behind her escape.
Along the way he'll befriend Charles Dickens, outwit Sweeny Todd and reach the giddy heights of Victorian society.
Dodger may be living in the gutter, but he's heading for the stars...