“The Secret of Mechanical City”
The Caped Crusaders and Professor race one another to Mechanical City to retrieve a stolen secret formula on microfilm.
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Batman #114 (1940) is issue #114 of DC's Batman (1940–2011), with a cover date of March 1958. Written by Henry Boltinoff and Bill Finger and drawn by Henry Boltinoff, Sheldon Moldoff and Dick Sprang.
Credits, characters and story details from the Grand Comics Database, CC BY-SA 4.0.