The exhibition reel for this film can be found in a "mini" put together for "More Treasures From American Film Archives 1894-1931," entitled "Hollywood Promotional Films 1918-1926" (that's located on the 3rd disc of the collection)
During production, George Chesebro ("Hands Up") entered the US Army and was replaced by George Larkin for the remainder of the production.
CHAPTER TITLES: 1. Bride of the Sun; 2. The Missing Prince; 3. The Phantom and the Girl; 4. The Phantom's Trail; 5. The Runaway Bride; 6. Flames of Vengeance; 7. Tossed Into the Torrent; 8. The Fatal Jewels 9. A Leap Through Space; 10. The Sun Message; 11. Stranger from the Sea; 12. The Silver Book; 13. The Last Warning; 14. The Oracle's Decree; 15. The Celestial Messenger.
On 6/19/1919 this film was playing at the Yaguez Theater in Mayaguez, Puerto Rico, when a fire broke out. A total of 60 people died and more than 400 were injured.