- The Devil's Gateway (1908)
- His Majesty, My Rebellious Subject (1910)
- The Kingdom that Never Came (1911)
- In Pursuit of the President (1912)
- Doctor Graylock's Little Lady (1914)
- Doctor Greylock's Wife (1914)
- Love's Handicap (1914)
- The Unconscious Self (1914)
- Out of the Mist (1914)
- From the Great Deep (1915)
- The Girl Who Was Rich (1916)
- That Freshman (1916)
- The Mysterious Dr. Synne (1917)
- Out of the Wreck I Rise (1918)
- With Poison I Will Cure (1919)
- An Unwed Mother (1921)
- Dr. Greylock's Secret (1924)
- The Mystery of the Hidden Man (1925)
- The Great Mystery of the Orient Express (1925)
- When the Shadows Came (1925)
- That Girl Was Mine (1926)
- The Devil Man (1927)
- An Uncrowned King (1927)
- What Would You Do? (1927)
- The Ghost of a Man in Chains (1928)
- The Red Circle (1931)
Non-Fiction
- The Empire of Silence (1912)
- The Real Australia (1912)
- From China Over India to Mecca and Back (1913)
- The Man With the Double Heart (1913)
- On the Great White Road (1913)
- Siberia and the Exile System (1913)
- With The Armies of Europe (1914)
- With Both Armies in South-East Africa (1915)
- Our King and Queen (1915)
- After Dinner Talks with the Kaiser (1915)
- In the Heart of Old Spain (1915)
- Rambling Recollections (1916)
- The First War in the World (1916)
- The World in Revolt (1916)
- The Battle of the Nations (1917)
- King Carol of Roumania (1922)
- The King's Cross (1925)
- The Land of Enchantment (1925)
- The Romance of the North (1926)
- The House of Windsor (1927)
- The Romance of London (1929)
- The King and the Queen of Spain (1930)