Batman: The Black Casebook

A 2009 one-shot from DC, Batman: The Black Casebook collects a series of surreal, science-fiction-flavored Batman stories from the late 1950s and early 1960s, originally written by Bill Finger and drawn by Sheldon Moldoff. This volume gathers the oddest adventures of the era, featuring alien encounters, bizarre transformations, and other strange phenomena that would later be referenced by Grant Morrison. It's a fascinating glimpse into the weirder corners of the Silver Age Batman mythos, showcasing the wild creativity that defined the character before his darker reinvention.