A haunting, luminous novel set on an enchanted island off the west coast of Ireland where magic, faith, and superstition pervade the inhabitants? lives and tangled relationships. One day outspoken American Brigid, arrives. She?s seeking a secret holy well that?s rumored to grant miracles. Emer has good reason to believe in inexplicable powers. Despite her own strange abilities Emer fears that she won?t be able to save her young son, Niall, from a growing threat. Yet Brigid has a gift too, even more remarkable than Emer?s. As months pass and Brigid carves out a place on the island, a complicated web of betrayal, fear, and desire culminates in one shocking night that will change the island and its inhabitants forever.