Följetonger

1920-talet

1924:

The Man in the Brown Suit 1924 (The Blue Book Magazine)

1927:

The Big Four 1927-1928 (The Blue Book Magazine)
Anm. Följetongen innehåller följande avsnitt/kapitel: The Unexpected Guest, The Dartmoor Adventure,
          The Lady on the Stairs, The Radium Thieves, In the House of the Enemy, The Yellow Jasmine Mystery,
          The Chess Problem, The Baited Trap, The Peroxide Blonde, The Enemy Strikes och The Crag in the Dolomites.