Insanity: A Jerome/Joker Gotham fanfiction

Harleen Quinzel was always a "good" girl. When at Arkham with her mother, Harleen finds that he father may still be alive. Her mother says he's dead, but then Harleen meets a mischievous ginger who says that her dad is still alive. As her curiosity gets the best of her, Harleen takes matters into her own hands. As on...