The fifth appearance of The Batman took place in the September 1939 issue of Detective Comics. Once again, Batman was featured on the cover and this adventure pitted him against a new foe: The Monk, a mysterious man dressed in a red cloak and hood who had as his heavy a giant gorilla. We discover something new about Bruce Wayne in this issue, he is engaged to a woman named Julie Madison who is hypnotized (along with others) by the Monk.

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