To discover the truth Jem and Will must pursue the story through the darkest corners of the city--from the depths of a notorious rookery, to the sordid rooms of London's brothels, the gallows, the graveyard, the convict fleet and then back to the asylum.
In a world where guilt and innocence, crime and atonement, madness and reason, are bounded by hypocrisy, ambition and betrayal, Jem and Will soon find themselves caught up in a web of dark secrets and hidden identities.