* The Secret Life of Lady Audley
* The Mysterious Marriage of Eleanor Kendal
* The Diamond Necklace: A Romance of the French Court
* The Heiress of Ravenscroft
* The White Rose of Memphis: A Novel of the Civil War
* The Garden of Lies
* The Heart's Desire: A Novel of Old New York
* The Rose and the Flame: A Novel of Italy
* The Sin of Olga Brandt: A Novel of Russia
Short Stories:
* "The Phantom Coach"
* "The Red Room"
* "The Secret of the Vault"
* "The Curse of the Mummy"
* "The Ghost of Glamis Castle"
* "The Witch's Brew"
* "The Haunted House"
* "The Vampire"
* "The Werewolf"
Non-Fiction:
* My Life and Loves
* The Secrets of a Victorian Lady
* The History of the Diamond Necklace
* The Romance of the French Court
* The Civil War: A Personal Account
* The Mystery of the Rose and the Flame
* The Italian Renaissance: A Cultural History
* The Russian Revolution: A Personal Perspective