Winter Mulcahy is the last wizard in the city of Seahaven, WA and all that stands between the fractious preternatural population and total chaos. Holding the city together by the skin of her teeth, the blood of her friends, and an addiction to stimulants that is slowly killing her, the young wizard is approached by a pair of sidhe lords who claim that her city is harboring a fugitive who has kidnapped a sidhe prince, and that they are on a mission to rescue the boy. Winter must investigate this fugitive to get to the truth of the kidnapping, discover the cause of the surges of wild magic tearing open rifts between realms across her city, and navigate the deadly waters of preternatural politics before Seahaven both figuratively and literally rips itself apart.