The Secret Kingdom
- Ano: 1917
- País: United States of America
- Xénero: Adventure, Romance
- Estudo: Star Film Company, Vitagraph Company of America
- Palabra clave: movie serial, presumed lost
- Director: Charles Brabin, Theodore Marston
- Reparto: Charles Richman, Dorothy Kelly, Joseph Kilgour, Arline Pretty, William R. Dunn, De Jalma West
