It is 1872. Ingrid Loftfield and her sister Grace are living uneventful lives with their family on Sand Island, Lake Superior, until the day Grace nearly drowns. Grace becomes inexplicably ill, for she has been saved by the spirit of a drowned sailor which rests uneasily beneath the water. Ingrid can only watch as her sister drifts toward death, lured by the restless spirit, until an immegrant Finnish fisherman, Avan, helps Ingrid release Grace from the spell that binds her. Having rescued her sister, Ingrid herself begins an odyssey stranger than she could imagine. For Avan is not what he's assumed to be. He's Avanasy, a powerful sorcerer who's been banished from another world, Isavalta, where he tutored Medeoan, the princess-heir to the empire until she married a prince of a rival realm.