Harry Blyth

1914

• [ ] The Mystery of the Diamond Belt (Writer) 
• [ ] The Kaiser's Spies (Characters) 
• [ ] Britain's Secret Treaty (Characters) 

1915

• [ ] The Thornton Jewel Mystery (Characters) 
• [ ] The Stolen Heirlooms (Characters) 
• [ ] The Great Cheque Fraud (Characters) 

1919

• [ ] The Further Exploits of Sexton Blake: The Mystery of the S.S. Olympic (Characters) 

1922

• [ ] Doddington Diamonds (Characters)