Detective Comics #293

Detective Comics #293 brings Batman and Robin face-to-face with an otherworldly threat, as Sheldon Moldoff's cover depicts the Dynamic Duo surrounded by hulking, red-skinned alien creatures in what the cover boldly declares to be a "Dark World." A de-energizer gun blazes at center stage, with the caption warning that the heroes may never return to their own dimension — a genuinely unsettling sci-fi premise for 1961. Writer Jack Miller and artist Nick Cardy bring their talents to the interior, making this a fine example of the era's imaginative blend of superhero adventure and science fiction.