Aiofe Callaghan comes from a long line of faery hunters. Hired by one of the faery queens, they protect the human world from chaos and destruction. But when Aiofe stumbles through an open door into the land of Faery, she discovers the job isn't as simple as it seems, nor is she. Arthur Pendragon spent centuries in blissful nothingness, until the day the four queens banded together to raise him from the dead. Along with his twelve most talented knights, he leads the warring armies of Faery against the greatest enemy they have ever known: one of their own. Can they overcome their differences to confront the greatest challenges either of them have ever faced?