

Daniel Robin has become mixed up with a band of criminals known as "the 13," and is shot when he refuses to do their bidding. His daughter Ruth, brought home from boarding school, reaches his bedside before he expires. He tells her that she will be given thirteen keys. Instructions will be provided with each key and, if she follows the instructions, she will eventually fully learn of her birthright. Many adventures then follow as Ruth attempts to solve the puzzle of each key and establish her true birthright.
Director: Ruth Roland

Ruth Roland
Ruth Robin

Herbert Heyes
Bob Wright

Thomas G. Lingham
LaFarge, the Hound
William Human
Paul Brighton
Charles Bennett
Wayman
Helen Case
Countess Zirka
Helen Deliane
Melody Morne

Charles Belcher

The Master Key
1945

Jesse James Rides Again
1947

The Hazards of Helen
1917

The Scarlet Horseman
1946

The Spider Returns
1941

Mystery of the Riverboat
1944

The Strings of Steel
1926

The Secret of the Submarine
1916

Drums of Fu Manchu
1940

Beatrice Fairfax
1916

Scouts to the Rescue
1939

King of the Texas Rangers
1941
Browse more by genre: