Batman: Fortress #3

Time is running out after a disastrous first encounter with the invading alien force, and Batman is forced to change his tactics and team up with the last person on Earth he could have expected. The mystery deepens around the absent Man of Steel, as the alien motives become more clear… Could there be secrets to his disappearance at the Fortress of Solitude?

Characters: Alfred Pennyworth, Batman, Black Canary, Cyborg, Deadman, Dick Grayson, Green Arrow, Hal Jordan, John Stewart, Joker, Lex Luthor, Man-Bat, Perry White, Phantom Stranger, Ra's al Ghul, Spectre, Talia al Ghul