Frederic Dannay (1905-1982) was--with his partner Manfred Lee--the creator of the Ellery Queen detective novels and short stories. Dannay was also a literary historian and critic, and the editor of the renowned Ellery Queen Mystery Magazine. Queen--both a pen name and the fictional protagonist of the stories--was also a vital force behind the continuing popularity of crime fiction in the early to mid-20th century, after the deaths of Arthur Conan Doyle, G.K. Chesterton, Melville Davisson Post, and other Old Masters of the genre. This book presents the first critical study of Ellery Queen's role in the preservation of the detective short story. Many of the writers, characters and stories EQMM championed are covered, including such celebrated authors as Allingham, Ambler, Ellin, Innes, Vickers, and even William Butler Yeats.