Lazen Castle, home to the much-envied Lazender family, is a house under siege. The heir is abroad, pursuing his own adventures, so the family estates fall under the control of his sister, Campion. Meanwhile, The Fallen Angels, a powerful and dangerous secret society in Europe, need the Lazender fortune to bring their rebellion to England.

Surrounded by deceit, Campion draws ever closer to a subtle trap that has been laid for her, her only hope being Gypsy - her brother's aloof horse-master, whose loyalties have always been uncertain.