Batman: The Doom that Came to Gotham — DC Comics
Issue: #3
The finale of this Lovecraftian Elseworlds Tale has the Batman locked in mortal battle with the mad sorcerer Ra's al Ghul who has called forth an entity as old as time itself. Wayne, Oliver Queen and Harvey Dent have made terrible sacrifices in order to save their beloved Gotham. Will it be enough?
Creators: Bill Oakley, Mike Mignola, Richard Pace, Troy Nixey, Dave Stewart, Dennis Janke
Characters: Batman, Alfred Pennyworth, Killer Croc, Tim Drake, James Gordon, Two-Face, Barbara Gordon, Ra's al Ghul, Talia al Ghul, Etrigan, Man-Bat, Yog-Sothoth