Batman: The Ultimate Evil the project, allowing Vachss to take some creative liberties. At a party, Bruce Wayne meets Debra Kane, a caseworker with Child Protective Services. He asks to join her while she visits clients. She agrees and shows him the varying degrees of child abuse she encounters in the course of her job. Wanting to understand the factors behind child abuse, Bruce, as Batman, breaks into Hellgate Prison and talks with an informant who points him to a child pornography and prostitution ring. Bruce's butler Alfred Pennyworth reveals that Bruce's mother, Martha Wayne, had been secretly investigating a similar child prostitution ring,
Batman: Mask of the Phantasm her, but just before he can kill Andrea, Batman arrives and begs Andrea to give up her quest. She refuses and disappears. Batman and the Joker battle to a stalemate. Moments later Andrea returns and seizes Joker, bidding Batman goodbye before vanishing with the maniacally laughing clown. The amusement park erupts in a series of explosions and Batman barely escapes. Alfred later consoles Bruce, telling him that no one could have helped Andrea. Bruce finds her locket, containing a picture of himself and Andrea, in the Batcave. Meanwhile, Andrea departs from Gotham alone on an ocean liner, feeling completely lost.