When her daughter Fiona is snatched from her bed, Caitlin's entire world crumbles. Once certain that faeries were only a fantasy, Caitlin must now accept that these supernatural creatures do exist—and that they have traded in their ancient swords and horses for modern guns and sports cars. Hopelessly outmatched, she accepts help from a trio of unlikely heroes: Eddy, a psychiatrist and novice wizard; Brendan, an outcast Fian warrior; and Dante, a Magister of the fae's Rogue Court. Moving from the busy streets of Boston's suburbs to the shadowy land of Tír na nóg, Caitlin and her allies will risk everything to save Fiona. But can this disparate quartet conquer their own inner demons and outwit the dark faeries before it's too late?