Harley Quinn Vol 5: The Joker's Last Laugh

In these stories from issues #22-25, Harley's got a friend to save, but she has to get through Arkham Asylum first-and she definitely isn't ready to face a certain someone at the end of a dark hallway. Plus: in a story featuring art by Amanda Conner, Harley finds a genie in a bottle-and redefines the phrase "be careful what you wish for"!