Nicholas Valiarde is a passionate, embittered nobleman with an enigmatic past. Consumed by thoughts of vengeance, he is consoled only by thoughts of the beautiful, dangerous Madeline. He is also the greatest thief in all of Ile-Rien. Under cover of darkness on the streets of the gaslit city, he assumes the guise of a master criminal, stealing jewels from wealthy nobles to finance his quest for vengeance: the murder of Count Montesq. Montesq orchestrated the wrongful execution of Nicholas's beloved godfather Edouard on false charges of necromancy, the art of divination through communion with spirits of the dead, a practice long outlawed in the kingdom of Ile-Rien.
But now Nicholas's murderous mission is being interrupted by a series of eerie, unexplainable, fatal events. Someone with tremendous magical powers is opposing him, and traces of a necromantic power that hasn't been used for centuries appear. And when a spiritualist unwittingly leads Nicholas to a decrepit old house, the truly monstrous nature of his peril finally emerges.