Ace Magazines was a comic-book and pulp-magazine publishing company headed by Aaron A. Wyn and his wife Rose Wyn. The Wyns had been publishing pulp fiction under the Periodical House and A. A. Wyn's Magazine Publishers names since 1928, and published comics between 1940 and the end of 1956. Its most successful and longest-running superhero title was Super-Mystery Comics featuring Magno the Magnetic Man and his boy partner Davey,who appeared in 28 issues of the title's 48-issue run. Horror comics included Baffling Mysteries, Hand of Fate and Web of Mystery, while their contribution to the crime comics was Crime Must Pay the Penalty (the title later shortened to Penalty for the final two issues). Ace's longest running series were the company's romance comics Glamorous Romances, Love At First Sight, Love Experiences and Real Love, which began in the late 1940s as the superhero books faded away, and continued until the company ceased publishing comic books in 1956. Other long running romance titles such as Complete Love Magazine and Ten Story Love began as pulp-magazine titles before switching to comics format in the early 1950s.