THE SHADOW “The Man Who Murdered Time.” Mutual Radio Network. January 1, 1939. William Johnstone, Agnes Moorehead. Sponsor: B. F. Goodrich Tires.

   In this, the first adventure of The Shadow (aka Lamont Cranston) in 1939, the man who can control men’s minds so that they cannot see him, deals with a mad scientist (there is seldom any other kind on the radio) who has invented a time machine. Dying of an incurable disease, he has by the flip of a switch found a way to set the entire world back 24 hours so to relive the day, December 31, over and over again.

   And thus the series delves deeply into science fiction, rather than a pure detective mystery. I always find it interesting to see how writers try to explain their time travel stories to mass audiences; this time the analogy is to a railroad track that time travels down. The scientist in this one simply bends the track into a circle, so the day repeats itself, with no one the wiser.

   Except for Lamont Cranston, whose powers of “invisibility” from the Orient also mean the scientist’s machine does not affect him; or at least he is fully aware that the time has curled back on itself. And because Margot Lane is dancing in his arms at the time, she also is aware of what is happening.

   All this makes for a story that’s pure nonsense,of course, but it’s one that’s still very entertaining to listen to, perfectly timed for a New Year’s Day broadcast.