• A Butterfly on the Wheel: A Novel
• A Lost Cause
• Chance in Chains: A Story of Monte Carlo
• House of Torment: A Tale of the Remarkable Adventures of Mr. John Commendone, Gentleman to King Phillip II of Spain at the English Court
• "I Believe" and other essays
• The Adventures of Ulysses the Wanderer
• The Air Pirate
• The Angel
• The City in the Clouds
• The Drunkard
• The Great Acceptance: The Life Story of F. N. Charrington
• The Hypocrite
• The Secret Service Submarine: A Story of the Present War
• The Serf
• The Socialist
• The Soul Stealer
• When It Was Dark: The Story of a Great Conspiracy