“The Toughest Ranger” by L. Ron Hubbard
Publication date: June 1938
Original publication: Western Story Magazine
Story description: Petey McGuire has been kicked around for so long, he’d run from his own shadow. But something is about to turn him into The Toughest Ranger—hunger.
Currently available as part of the Stories from the Golden Age series, in the book The Toughest Ranger.