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Béla Kiss, [en]
The Count's Chauffeur
Being the Confessions of George Ewart, Chauffeur to Count Bindo Di Ferraris, [en] 1907
The Czar's Spy
The Mystery of a Silent Love, [en] 1905
The Doctor of Pimlico
Being the Disclosure of a Great Crime, [en] 1920
El tesoro misterioso
(The Mysterious Treasure), [es] 1909
Eleven Possible Cases, [en] 1891
The Four Faces
A Mystery, [en] 1914
The Golden Face
A Great 'Crook' Romance, [en] 1922
The Great White Queen
A Tale of Treasure and Treason, [en] 1897
The House of Whispers, [en] 1910
Hushed Up!
A Mystery of London, [en] 1911
The Intriguers, [en] 1921
The Intriguers, [en] 1921
Mademoiselle of Monte Carlo, [en] 1921
The Minister of Evil
The Secret History of Rasputin's Betrayal of Russia, [en] 1918
The Mysterious Three, [en] 1915
The Mystery of the Green Ray, [en] 1915
Number 70 Berlin, [en] 1916
Sant of the Secret Service
Some Revelations of Spies and Spying, [en] 1918
The Secrets of Potsdam
A Startling Exposure of the Inner Life of the Courts of the Kaiser and Crown-Prince, [en] 1917
The Seven Secrets, [en] 1907
The Sign of Silence, [en] 1917
Spies of the Kaiser
Plotting the Downfall of England, [en] 1909
The Stretton Street Affair, [en] 1922
The White Lie, [en] 1915
The Zeppelin Destroyer
Being Some Chapters of Secret History, [en] 1916
Wikipedia
WorldCat