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This issue, published by DC Comics in September 1939, is one of the earliest and most iconic Batman covers. Detective Comics #31 features the third cover appearance of Batman, showcasing him looming over a Gothic-style castle with a full moon and bats in the background. The tagline promises “64 Pages of Thrill-Packed Action” for just 10 cents. Inside, Batman battles the villain The Monk, making this issue notable for being among the very first Batman storylines.

This comic is considered a Golden Age key issue, highly sought after by collectors due to its early Batman appearance and striking atmospheric cover art by Bob Kane.

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