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.
Director: Mack V. Wright
Cast
Robert Livingston
Stony Brooke
Ray Corrigan
Tucson Smith
Max Terhune
Lullaby Joslin
Mary Russell
Betty Marsh
Roger Williams
Rutledge
Fern Emmett
Henrietta McCoy
C. Montague Shaw
Professor Flaxon
Yakima Canutt
Otah
John Ward
Professor Brewster
George Godfrey
Professor Fronc
Earle Ross
Professor Cleary
Frank Ellis
Coggins
