Joffie's Mark - Strange Gods, #1

Joffie is fifteen, an orphan and thief, surviving in Victorian Beormingham on her wits and her peculiar talent - the ability to find secret doorways between worlds. Trouble looms when she steals a mysterious cane from a toff and her ensuing adventures place her in mortal danger. Unless she can free a long-forgotten god she and her friends are doomed...