New York Times best selling author Jeff Lemire takes over Justice League Dark and just when you thought it couldn't get darker... Vampires across the world have gone berserk, attacking anything with a pulse. Fearing her apocalyptic vision of the future has come to pass, Madame Xanadu mobilizes the team to intervene. But everything the Justice League Dark members know about how to slay a vampire is useless, for the world has changed.