AU. Up until now, Aster Potter was used to have wannabes thugs after her. Usually though, it was because her mother was The Poison Ivy, not because she had (not)killed a dark lord ten years ago. Some people can really hold a grudge, but if there is one thing the aspiring villainess can do, it's ruining a perfect plan. Fem!Harry; Harley Quinn/Poison Ivy.
Crossover - Batman & Harry Potter - Rated: T - English - Adventure/Romance - Chapters: 4 - Words: 10,638 - Reviews: 48 - Favs: 316 - Follows: 513 - Updated: 8/16 - Published: 11/25/2015 - Harley Quinn, Poison Ivy, Harry P., Hermione G.