• Elk 01 The Fellowship of the Frog
• Elk 02 The Joker
• The Man Who Bought London
• Elk 04 White Face
• Four Just Men
• The Complete Four Just Men
• Room 13
• Bones of the River
• The Mind of Mr. J. G. Reeder
• Mr. J. G. Reeder Returns
• Red Aces
• The Fourth Plague
• (1929) The Three Just Men