In early 1930, Street & Smith hired David Chrisman and Bill Sweets to adapt the Detective Story Magazine to radio format. Chrisman
and Sweets felt the program should be introduced by a mysterious storyteller. A young scriptwriter, Harry Charlot, suggested the name of "The Shadow." Thus, "The Shadow"
premiered over CBS airwaves on July 31, 1930, as the host of the Detective Story Hour, narrating "tales of mystery and suspense from the pages of the premier detective
fiction magazine." The bulk of the radio show was written primarily by Sidney Slon. The narrator was first voiced by James La Curto, but became a national sensation when
radio veteran Frank Readick, Jr. assumed the role and gave it "a hauntingly sibilant quality that thrilled radio listeners."