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Publication Order of Standalone Novels
| A Voyage to Arcturus | (1920) | Hardcover  Paperback  Kindle |
| The Haunted Woman | (1922) | Hardcover  Paperback  Kindle |
| Sphinx | (1923) | Hardcover  Paperback  Kindle |
| Adventures of Monsieur de Mailly | (1926) | Hardcover  Paperback  Kindle |
| Devil’s Tor | (1932) | Hardcover  Paperback  Kindle |
| The Violet Apple & The Witch | (1976) | Hardcover  Paperback  Kindle |
Publication Order of Anthologies