A fabulous jewel known as the 'Dark Star' is stolen; a pastor's daughter gets involved, falling into the depths of a spy plot concerning war plans and fortifications...
Marion Davies
as Rue Carew
Dorothy Green
as Princess Naia
Norman Kerry
as Jim Neeland
Matt Moore
as Prince Alak
Ward Crane
as French Secret Service Agent
George Cooper
as Mr. Brandes
Arthur Earle
as Mr. Stull
Gustav von Seyffertitz
as German Spy
Emil Hoch
as Steward
Fred Hearn
as Rev. William Carew
James Laffey
as Ship Captain
William Brotherhood
as Steward
