While most seventeen-year-old American girls would refuse to let their parents marry them off to a stranger, Robyn Mason dreams of the mysterious McKale in Ireland, wondering how he'll look and imagining his Irish accent. Prearranged bindings are common for magical families like her own. However, when she travels to the whimsical Emerald Isle, she discovers that there's more to her betrothal and McKale's clan than she'd been led to believe.

What starts as an obligatory pairing between Robyn and McKale morphs over time into something they both need. But one giant obstacle stands in the way of their budding romance: a seductive and deadly Fae princess accustomed to getting what she wants—and what she wants is McKale as her plaything. Love, desire, and jealousies collide as Robyn's family and McKale's clan must work together to outsmart the powerful Faeries and preserve the only hope left for their ancient bloodlines.