Batman: Gotham by Gaslight - The Kryptonian Age — DC Comics
Issue: #6
As threats from the past resurface in his present, Batman must work alongside strange new heroes to save the day--including the steel-hearted sheriff of Smallville, Kansas!The Kryptonian Age may have come to a close, but an age of Justice has only just begun!
Creators: Andy Diggle, Leandro Fernandez, Marie Javins
Characters: Batman, Harley Quinn, Superman, Lois Lane, El Diablo, Martian Manhunter, Wonder Woman, Cyborg, Copperhead, Jimmy Olsen, John Constantine, Killer Croc, Pete Ross, Adam Strange, Slipknot, Deadshot, Alan Scott, Sensei, Ra's al Ghul, Lex Luthor