“All Frontiers Are Jealous” by L. Ron Hubbard
Publication date: June 1937
Original publication: Five-Novels Monthly
Genre: Historical Fiction
Story description: An American engineer surveying a railway route in Africa saves a beautiful woman from the fierce Dinkas, but then has to save his own life.
Currently available as part of the Stories from the Golden Age series, in the book All Frontiers Are Jealous.