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Ellery Queen

Ellery Queen is a fictional detective created by American writers Manfred Bennington Lee and Frederic Dannay, as well as the joint pseudonym for the cousins Dannay and Lee. He first appeared in The Roman Hat Mystery (1929), and starred in more than 30 novels and several short story collections. During the 1930s and much of the 1940s, Ellery Queen was possibly the best known American fictional detective.