Written and directed by Robert Arthur and David Kogan, the radio series was sponsored by Adams Hats. It began on the Mutual Broadcasting System, December 5, 1943, continuing in many different timeslots until September 16, 1952. The lonely sound of a distant locomotive heralded the arrival of the malevolent narrator (portrayed by Maurice Tarplin), who introduced himself each week in the following manner:This is the Mysterious Traveler, inviting you to join me on another journey into the strange and terrifying. I hope you will enjoy the trip, that it will thrill you a little and chill you a...