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 - a prison escapee - 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.