BATMAN (1940) #535

A very powerful being is killing Gothamites and the only clue to the killer’s identity is graffiti scrawled on the walls of the city’s buildings. Batman must solve the puzzle before the body count rises, and face one of the strangest adversaries in his career: the Ogre. 1) 20,000 Volts of Vengeance!: A hooded man and an ape attack a Dr. Belmont. The man makes some remarks about being the sole survivors of an experiment of Dr. Belmont’s.…