Details
Robert Castleback is in possession of secret papers which could bring a certain prince to power under conditions which would make Castleback a ruling force in Europe. Master crook Arsene Lupin becomes aware of Castleback's bid for power and, in the interests of France, begins a search for the plans.
- Genres: Mystery
- Language: 
Cast & Crew
- Cast:Wedgwood Nowell , Ralph Lewis , Wallace Beery , J.P. Lockney , William V. Mong , Colin Kenny , Milton Ross , Thornton Edwards
- Director: Charles Christie, Scott Sidney