Supercomic #38

In "El misterio de los vagabundos millonarios," Jimmy Olsen's experiment with Prof. Potter's evolution accelerator sends him into the distant future as the Cosmic Brain, a being from 1,000,000 A.D. who believes the planet's future is in peril due to the arrangement of its land masses. Written by Otto Binder and illustrated by Curt Swan with inks by Ray Burnley, this 1970 issue sees Jimmy, in his transformed state, compelling Superman to carve a massive crater in the Antarctic icecap and fill it with heavy materials—though the true reason remains a mystery. The cover, by Curt Swan and Ray Burnley, captures the surreal moment of Jimmy’s transformation, hinting at the cosmic stakes without revealing the outcome.