The follow-up to the incredible Elseworlds saga Gotham by Gaslight: The Kryptonian Age introduces a steam-powered Justice League for the Gilded Age! While Batman, Superman, and a posse of strange new heroes might be able to handle Lex Luthor and his Kryptonite-fueled Metallo robot, they're going to need even more fire power to take on his new ally: General Zod! But something far more sinister-something hiding behind the very veil of our reality-is pulling Zod's strings. Can this. newly-formed League join forces to save humanity? Collects Batman: Gotham by Gaslight: A League for Justice #1-6.