The darklings come at night carrying their plague of shadows to the nine worlds. They corrupt all they touch and there's no cure except burning in the sacred fires. And Abagail Bauer has been infected with their baneful magic. Hunted by the hosts of dark magic known as darklings, Abagail and her party are driven to the Frozen North and into the arms of the frost giants. Now more than ever Abagail needs help controlling her magic before it enslaves her. With friends turning against her and enemies at every turn will the harbingers of light rescue Abagail before the darklings destroy her? Will she finally learn to control the sorcery of the shadow plague, or is she destined to become that which she fears most: a darkling?