Detective Comics 831 (DC, 2007)
Written by Paul Dini Art by Don Kramer & Wayne Faucher Cover by Simone Bianchi
Writer Paul Dini - creator of Harley Quinn - returns with art team Don Kramer & Wayne Faucher (JSA)! A bizarre incident forges a temporary alliance between the Dark Knight and his daffy-but-deadly adversary Harley Quinn. Forget everything you think you know about Dr. Harleen Quinzel as Batman uncovers long-buried secrets from his enemy's unknown past.