House of Mystery #76

From the gleaming machinery of a 1958 science-fiction nightmare, Jack Kirby's cover for House of Mystery #76 delivers a genuinely unsettling tableau: a shadowy figure at a control panel has apparently created an exact duplicate of a young woman named Peggy, and the two nearly identical figures stand side by side as the original reacts in stunned disbelief. The speech bubbles make the stakes crystal clear — the artificial twin exists solely to obey her creator's commands — and Kirby wrings real unease out of what could have been a simple gimmick. At ten cents, this DC anthology offered the kind of quietly creepy science-fantasy that made House of Mystery such a reliable treat in its day.