For twelve-year-old Neve, it's always been she and her older sister against the world, their lives entwined just like sisters in a fairy tale. Not even being moved to the piney woods outside Etters, South Carolina, can change what they are to each other, until a mysterious fog seems to swallow up Rose before Neve's eyes. Neve discovers that her sister has been taken by a swamp-dwelling witch with a terribly wicked plan. It will be up to Neve to save her sister. Otherwise, she'll be separated from Rose forever.