Batman (comic book) work, and first interior-story work, appeared in "Batman" #19 (Oct.-Nov. 1943), for which he drew the cover and the first three Batman stories, and penciled the fourth Batman story, inked by Norm Fallon. Like all Batman artists of the time, Sprang went uncredited as a ghost artist for Kane. Villains which debuted during this early era included the Mad Hatter in issue #49 (October 1948) and Killer Moth in issue #63 (February 1951). In 1953, Sheldon Moldoff became another one of the primary Batman ghost artists who, along with Win Mortimer and Dick Sprang, drew stories credited to Bob Kane,
Superhero This era saw the debut of first known female superhero, writer-artist Fletcher Hanks's character Fantomah, an ageless ancient Egyptian woman in the modern day who could transform into a skull-faced creature with superpowers to fight evil; she debuted in Fiction House's "Jungle Comic" #2 (Feb. 1940), credited to the pseudonymous "Barclay Flagg". The Invisible Scarlet O'Neil, a non-costumed character who fought crime and wartime saboteurs using the superpower of invisibility created by Russell Stamm, would debut in the eponymous syndicated newspaper comic strip a few months later on June 3, 1940. One superpowered character was portrayed as an antiheroine, a