Convicts, murderers and the shady inhabitants of the London underworld are part of daily life for 12-year-old printer's devil, Mog Winter - after all, Mog prints their 'Wanted' posters . . . But a face-to-face encounter with a real crook leads to Mog becoming enmeshed in an ingenious theft, a series of mistaken identities and a murder hunt . . . all connected to a recently docked ship from the Indian subcontinent, and Mog's own mysterious past.