Superman's Pal, Jimmy Olsen #22
In "The Mystery of the Millionaire Hoboes," Jimmy Olsen takes a wild turn when Professor Potter’s evolution accelerator transforms him into the Cosmic Brain, a being from a million years in the future. As the Cosmic Brain, Jimmy orchestrates a bizarre plan involving Superman and a massive crater in the Antarctic icecap, all to prevent a future planetary disaster. Written by Otto Binder and brought to life with Curt Swan’s signature art and Ray Burnley’s inks, this 1957 adventure blends sci-fi wonder with Jimmy’s signature curiosity—cover by Curt Swan and Ray Burnley.
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When Jimmy allows Prof. Potter to demonstrate his evolution accelerator on him, he becomes a human from 1,000,000 A.D. who calls himself the Cosmic Brain. Transformed, Jimmy forces Superman to create a crater in the Antarctic icecap and fill it with heavy materials. Only once Jimmy has reverted to his normal self does Superman discover that as the Cosmic Brain Jimmy had figured that the clustering of the Earth's main land masses around the North Pole would some day lead to the destruction of the planet.
Plot details indexed by the Grand Comics Database (CC BY-SA).