The Secret Kingdom
- Urtea: 1917
- Herrialdea: United States of America
- Generoa: Adventure, Romance
- Estudioa: Star Film Company, Vitagraph Company of America
- Hitz gakoa: movie serial, presumed lost
- Zuzendaria: Theodore Marston, Charles Brabin
- Aktoreak: Charles Richman, Dorothy Kelly, Joseph Kilgour, Arline Pretty, William R. Dunn, De Jalma West
