This episode is brought to you by Supernatural with Ashley Flowers, a Parcast Original. For more episodes like this one, subscribe to Supernatural with Ashley Flowers on Spotify, or wherever you listen to podcasts. In 1938, one of the most prominent physicists in the world boarded a ship from Palermo to Naples—and never got off. His sudden disappearance sparked rumors about kidnapping, government cover-ups, and secret weapons technology.