The Calendar Man’s new obsession lies with the Martian calendar. He’s committing horrific new crimes to appease a Martian death god and take on its power. For Batman to solve these crimes and bring down Calendar Man, he’ll need to call in the Martian Manhunter for help.
List of covers and their creators:CoverNameCreator(s)Sidebar LocationRegRegular CoverGiannis Milonogiannis1VarVariant CoverRiley Rossmo2RIVariant CoverJorge Fornes3
— Description from Comic Vine community (comicvine.gamespot.com).
