Written by GREG RUCKA & ED BRUBAKER Art by MICHAEL LARK, JASON ALEXANDER & others Cover by CLIFF CHIANG Detective Renee Montoya investigates the disappearance of evidence amid a gang war and travels to Keystone City in an attempt to unveil the truth about a fellow officer's strange mutation in this collection featuring issues #23-31 of the award-winning series. Plus, the dead body of Robin, the Boy Wonder, is found on the streets, forcing the detectives to solve the case while dealing with Batman and The Teen Titans.