Ellery Queen

Ellery Queen is the joint pseudonym of two American cousins, Frederic Dannay (1905–1982) and Manfred B. Lee (1905–1971), who wrote detective fiction together for over four decades. They created the fictional detective Ellery Queen and cofounded Ellery Queen's Mystery Magazine, a highly influential crime-fiction publication. Their works are considered a cornerstone of the Golden Age "fair play" mystery genre.