Cover: Jack Burnley

Adventure Comics #65

Aug 1941 · DC · 0.10 USD

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“The Mystery of the Undersea Terror!”

In "The Mystery of the Undersea Terror!", Hourman faces a sinister threat when an evil inventor unleashes a black ray ring to fund his sinister ambitions, including the construction of the colossal robot Giganto. With the fate of the city hanging in the balance, Hourman must confront the mechanical menace before it’s too late. Art by Bernard Baily and a striking cover by Jack Burnley bring this 1941 adventure to life.

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artist, inker, letterer Bernard Baily · cover Jack Burnley

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Cast · 2 characters

Steve Carson Superman

Full credits

artist, inker, letterer Bernard Baily

cover pencils, inks Jack Burnley

Full plot ⚠ may contain spoilers

▸ Reveal full plot — may contain spoilers

An evil inventor creates a nefarious black ray ring, which is used to rob a jewelry store, fetching the villain cash needed for his work, including a giant robot named Giganto, which Hourman must overcome or die.

Plot details indexed by the Grand Comics Database (CC BY-SA).