& Smith radio program Detective Story Hour. [3] After gaining popularity among the show's listeners, the narrator became the star of The Shadow Magazine on April 1 , 1931 ; a pulp series created and primarily written by the hugely prolific Gibson. http://www.spiritone.com/~maxpax/pulp.htm http://www.empirecollectibles.com/pulp.html As the years passed, the character evolved. On