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Written by Alvin Schwartz, William Woolfolk, and Others
Art by Wayne Boring, Stan Kaye, Al Plastino and Others
As Superman enters the 1950s, Lex Luthor invents a device that banishes Superman to the fourth dimension, while Mr. Mxyztplk makes the city of Metropolis forget that their hero ever existed. Plus, Superman becomes a super-cowboy and meets a mighty caveman.
Collects tales from Action Comics #126-147, Superman #55-65, and World's Finest Comics #37-47.