Adventures of the Jaguar #11

From the February 1963 issue of Adventures of the Jaguar, this cover by John Rosenberger drops the red-suited hero onto the deck of a tall ship where a massive, red-eyed green sea serpent has coiled itself around the hull — its hypnotic gaze leaving the Jaguar reeling and powerless. A desperate caption warns that "a jinx 300 years old will destroy us all," making the stakes aboard this doomed vessel feel genuinely dire. It's a vivid, nautical-flavored adventure that showcases Rosenberger's confident linework and the kind of outlandish peril that made early '60s superhero comics such a treat.