The Booker Prize-winning author of Oscar and Lucinda returns to the nineteenth century in an utterly captivating mystery. The year is 1837 and a stranger is prowling London. He is Jack Maggs, an illegal returnee from the prison island of Australia. He has the demeanor of a savage and the skills of a hardened criminal, and he is risking his life on seeking vengeance and reconciliation. Installing himself within the household of the genteel grocer Percy Buckle, Maggs soon attracts the attention of a cross section of London society. Saucy Mercy Larkin wants him for a mate. The writer Tobias Oates wants to possess his soul through hypnosis. But Maggs is obsessed with a plan of his own. And as all the various schemes converge, Maggs rises into the centre, a dark looming figure, at once frightening, mysterious, and compelling.