Detective Comics #356

This October 1966 issue of Detective Comics promises high stakes right on its Carmine Infantino and Joe Giella cover, where Batman charges toward a bizarre, bubble-textured villain known as the Outsider, who fires a blinding energy beam while taunting the Dark Knight with a 30-second death threat — while a stricken Robin cries out that he's "turning into a coffin." The cover boldly declares that Batman's most mysterious foe is finally unmasked, making this a genuinely gripping chapter in the Dynamic Duo's Silver Age adventures. Gardner Fox's script, brought to life by Sheldon Moldoff and Joe Giella, pairs perfectly with a cover that delivers maximum dramatic tension for twelve cents.