“The Great Secret” by L. Ron Hubbard
Publication date: April 1943
Original publication: Science Fiction Stories
Genre: Science Fiction
Story description: Driven by greed and a lust for power, all Fanner Marston cares about is reaching the ancient city of Parva, where lies the Great Secret to universal domination.
Currently available as part of the Stories from the Golden Age series, in the book The Great Secret.