* The Case of the Missing Wife
* The Mystery of the Disappearing Diamonds
* The Riddle of the Locked Room
* The Death of the Millionaire
* The Secret of the Old House
* The Strange Case of the Mad Scientist
* The Curse of the Ancient Mummy
* The Horror of the Haunted Castle
* The Terror of the Invisible Monster
Short Stories
* "The Adventure of the Missing Watch"
* "The Mystery of the Stolen Jewels"
* "The Puzzle of the Locked Door"
* "The Death of the Bank Robber"
* "The Secret of the Hidden Room"
* "The Strange Case of the Mad Scientist"
* "The Curse of the Ancient Mummy"
* "The Horror of the Haunted Castle"
* "The Terror of the Invisible Monster"
Essays
* "The Art of Mystery Writing"
* "The Psychology of Crime"
* "The History of Detective Fiction"
* "The Future of Crime Fiction"