The Secret Kingdom
- Bliain: 1917
- Tír:
- Seánra: Adventure, Romance
- Stiúideo:
- Eochairfhocal: movie serial
- Stiúrthóir: Charles Brabin, Theodore Marston
- Caitheadh: Charles Richman, Dorothy Kelly, Joseph Kilgour, Arline Pretty, William R. Dunn, De Jalma West