Harry Blyth

The Mystery of the Diamond Belt

1914

Britain's Secret Treaty

1914

The Kaiser's Spies

1914

The Great Cheque Fraud

1915

The Thornton Jewel Mystery

1915

The Stolen Heirlooms

1915

The Further Exploits of Sexton Blake: The Mystery of the S.S. Olympic

1919

Doddington Diamonds

1922