Marvel Mystery Comics #49
In "Flight of the Deadly Boomerang," the Kangaroo Man unleashes a sinister boomerang laced with a deadly chemical that turns blood into gasoline, driven by a twisted rivalry with his brother over a dangerous invention. With Torch and Toro closing in, his confession reveals a tragic conflict between scientific ambition and moral conscience—before a final, fiery end. Art by Harry Sahle, with cover by Syd Shores, this 1943 Marvel Mystery Comics issue delivers a pulpy, high-stakes thriller from the Golden Age.
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The Kangaroo Man uses a boomerang coated with a chemical that transforms blood into gasoline to kill his brother. His brother refused to finance his research on ethical grounds, and when the Japanese agreed to help, they demanded the Kangaroo Man silence his brother. Since Torch and Toro have captured him, he confesses everything and says he really didn't want the Japanese to get his formula. As he has previously injected himself with his chemical, he lights his final cigarette and bursts into flames.
Plot details indexed by the Grand Comics Database (CC BY-SA).