Harley Quinn Volume 5 "The Jokers Last Laugh" (New 52)
DC Comics - Graphic Novels
 
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'!