Mighty Boy (1949)
From superman.nu: Supermanica
Mighty Boy (1949)
A youth named Reuben who is tricked by an unscrupulous carnival showman to appear as the world's strongest boy, all of Mighty Boy's feats are actually the result of circus trickery. When criminals kidnap Mighty Boy in order to further their villainous plans, Superboy steps in to end the fictitious career of the young man and apprehend all who sought to exploit him (SB No. 1/3, Mar/Apr 1949: "Superboy Meets Mighty Boy!").