Anthropologist Zeke Kendall believed in science, not fairy tales. But after he falls down Maeve's Cairn in Ireland, bumps his head, and suddenly finds himself in the world of the Tua de Dannen, Zeke begins to think it might be time to revise his original thoughts about faeries. Nuala, the eldest daughter of Faerie Queen Mab, wants nothing more than to have Zeke stay with her forever, but Nuala realistically knows that it would be dangerous for Zeke.