Batman: The Doom That Came to Gotham is a 3-issue comic book miniseries published from November 2000 to January 2001 under DC Comics’ Elseworlds imprint. Written by Mike Mignola and Richard Pace and illustrated by Troy Nixey (pencils) and Dennis Janke (inks), with Mignola providing covers, the story deals with an alternate Batman in the 1920s fighting against mystical and supernatural forces that are taking Gotham by storm after he accidentally reawakens the being known as The Lurker on the Threshold.
I read this series before I actually read any of the Hellboy comics and introduced me to Mignola’s work. I still have the first two issues and have been searching for the third for years now.
The story takes familiar characters from Batman and DC history and work them into a story that would easily be a great Call of Cthulhu rpg campaign. One of the best scenes in the book is when the newly resurrected Ra’s Al Ghul, who gains his power from a dead, forgotten city of a race of prehistoric reptilian, unleashes a Plague of Reptiles upon the hapless Gotham