When sixteen-year-old Ivy starts a new life in her stepfather's castle in Scotland, she finds that her stepfather's grandmother is implacably hostile and some mysterious spirit in the castle is trying to injure her--and her new best friend is a ghost named Logan. When sixteen-year-old Ivy starts a new life in her stepfather's castle in Scotland, she finds that his grandmother is implacably hostile, and something dark and deadly is afoot. Ivy soon finds herself in mortal danger.