Daily Quiz for December 15, 2014

Ellery Queen. Beginning with The Roman Hat Mystery, the cousins wrote over 35 novels and short stories as Ellery Queen. Over a million copies of the novels and short story anthologies have sold. Two Ellery Queen innovations are the reader challenge just before Queen solves the mystery, and the oft-used "dying clue." Dannay and Lee also wrote together under the name Barnaby Ross.