The Riders of the Whistling Skull
When Professor Marsh disappears while searching for the lost city of Lukachukai, his daughter enlists the help of the Three Mesquiteers.
- Genre: Drama, Western
- Studio: Republic Pictures
- Keyword: three mesquiteers
- Cast: Robert Livingston, Ray Corrigan, Max Terhune, Mary Russell, Roger Williams, Fern Emmett