1817 Cornwall and London. Heir to an aristocratic family scorched by scandal and scarred by war, the Earl of Lamorna (known to friends as Crow) is as dangerous as he is self-destructive. As a spy, he treads a fine line between loyalty and treachery, with a haunting secret in his past that threatens to destroy not only Crow himself, but those he loves. It's only going to take a single spark to set his world aflame. So when Crow's wild and impetuous young brother catches him in flagrante with their widowed stepmother, a lethal chain of events is set in motion.