"Who am I?"

is the question keeping Aggie Boyle up at night. On the surface, she's a seventh grader from a town near Salem where her family has lived for centuries. At school, she's an outcast because of her unconventional appearance, and has difficulties making new friends since her best friend disappeared three years prior. At home, her mother treats her with icy disregard for reasons Aggie doesn't understand, while all she has left of her father is his ring emblazoned with a strange design. With the horizons of her life shrinking, Aggie feels more lost and alone than ever. Until one day, she awakens to an unexpected transformation and begins an adventure that leads her to a colonial village with surprising inhabitants. With the help of some new friends, Aggie must discover her own magical origins, as well as her own destiny as a witch. If she can't find the inner strength and courage to save the town, it--and she--will be destroyed by a magic as ancient as it is evil.