Keen Detective Funnies #12
In "Four Gangs against the Masked Marvel," the Masked Marvel uncovers a web of deception spun by a mysterious cult leader known as Astra. Written and illustrated by Harry Campbell, this 1939 adventure sees the hero and his ally Carol dismantle a seemingly supernatural scheme rooted in cleverly disguised technology. The cover by Frank Frollo captures the tension of a world where light and sound mask a hidden enemy.
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A movie star disciple of a new seer called Astra is murdered. Dean realizes that the "magic" crystal balls given to Astra's wealthiest disciples are only loudspeakers controlled through beams of light. He and Carol go to Astra's "Temple of Light." He recognizes the voice of "Astra" as belonging to his old enemy the Conqueror. Denton is captured, and Carol causes a distraction, allowing him to escape. He broadcasts the truth to the remaining followers of Astra, which lures the Conqueror to the station. Denton gets the drop on the Conqueror when he arrives and turns him over to the police.
Plot details indexed by the Grand Comics Database (CC BY-SA).