AU. When Lily died, Snape removed his heart and replaced it with a steel trap. But rescuing her daughter from the Dursleys in the summer of '92 is the first step on a long road to discovering this is less true than he'd thought. A girl!Harry story, starting in Chamber of Secrets and continuing through Deathly Hallows. Future Snape/Harriet.
Harry Potter - Rated: M - English - Chapters: 73 - Words: 458,203 - Reviews: 1571 - Favs: 693 - Follows: 825 - Updated: 3/27 - Published: 10/16/2012 - Harry P., Severus S.