Master detective Ellery Queen made his radio debut seventy-five years ago this month, and we're celebrating with two of the sleuth's on-the-air adventures. First, Sydney Smith is Ellery in "The Adventure of the Message in Red," originally aired on CBS on November 7, 1945. Then, Larry Dobkin stars as Queen in "Number 31," originally aired on NBC on September 7, 1947. Play along with Ellery and his guest armchair detectives and see if you can solve the crime before he reveals the solution!