Raybould Marsh is a British secret agent in the early days of World War Two. He is haunted by the vision of a German woman with wires going into her head who looked at him as if she knew him. When the Nazis start running missions with people who have unnatural abilities, Marsh is the man who has to face them.

The history of the Twentieth Century has been shaped by a secret conflict between technology and magic. When a twisted Nazi scientist devised a way to imbue ordinary humans with supernatural abilities - to walk through walls, throw fire and see the future - his work became the prized possession of first the Third Reich, then the Soviet Army. Only Britain's warlocks, and the dark magics they yield, have successfully countered the threat posed by these superhuman armies. But for decades, this conflict has been manipulated by Gretel, the mad seer. And now her long plan has come to fruition. And...

Following The Mechanical and The Rising comes the third and final novel in this thrilling series of one individual's struggle for freedom - from the author dubbed "a major new talent" by George R. R. Martin. Perfect for fans of Paolo Bacigalupi, Ann Leckie and Neal Stephenson.