The Secret Kingdom is a 1917 silent action movie serial comprised of 15 chapters: 1. Land of the Intrigue 2. Royalty at Red Wing 3. Sealed Packet 4. Honorable Mr. Oxenham 5. Carriage Call #101 6. Human Flotsam 7. Ghost Ship 8. Rum Cay 9. Swamp Adder 10. A Goat Without Horns 11. The White Witch 12. The Shark's Nest 13. The Tragic Masque 14. The Portrait of a King 15. The Tocsin.
Directed by Charles Brabin
Charles Richman
Prince Philip / Phil Barr
Dorothy Kelly
Madame Savatz
Joseph Kilgour
The Prime Minister
Arline Pretty
Princess Julia
William R. Dunn
Juan
De Jalma West
Count Ramon
