- (1937) Novel (as "Sapper"): "The Challenge" (filmed as The Challenge (1948), Bulldog Drummond in Africa (1938), Bulldog Drummond Strikes Back (1934))
- (1933) Novel (as "Sapper"): "Bulldog Drummond Strikes Back" (aka "Knockout"; filmed as Bulldog Drummond Strikes Back (1947))
- Novel: "Bulldog Drummond and the Oriental Mind" (filmed as Bulldog Drummond's Bride (1939))
- (1929) Novel (as "Sapper"): "Temple Tower" (filmed as Bulldog Drummond's Secret Police (1939))
- (1926) Novel: "The Final Count" (filmed as Arrest Bulldog Drummond (1938))
- (1925) Novel: "The Third Round" (filmed as Bulldog Drummond's Peril (1938), Bulldog Drummond's Third Round (1925))
- (1932) Novel: "The Return of Bulldog Drummond" (aka "Bulldog Drummond Returns"; filmed as Bulldog Drummond's Revenge (1937)).
- (1928) Novel: "Female of the Species" (filmed as Bulldog Drummond Comes Back (1937))
- (1935) Novel: "Bulldog Drummond at Bay" (filmed as Bulldog Drummond at Bay (1937))
- Playwright: "Bulldog Drummond Again" (filmed as Bulldog Drummond Escapes (1937))
- Playwright: "Woman in Bondage" (filmed as Woman in Chains (1932))
- Novel (as "Sapper"): "Three of a Kind" (filmed as Love on the Spot (1932))
- (1920) Playwright (as "Sapper"): "Bulldog Drummond" (filmed as Bulldog Drummond (1929), Bulldog Drummond (1922))
- Story (as "Sapper"): "Poppies of Flanders" (filmed as Poppies of Flanders (1927))
- (1922) Novel: "The Black Gang" (filmed as The Return of Bulldog Drummond (1934)).
- (1936) Novel: "Ask for Ronald Standish".
- (1937) Novel: "Bulldog Drummond Double Header".
- Novel: "The Death Scratch".
- (1923) Novel: "The Dinner Club".
- (1934) Compilation: "Fifty-One Stories".
- (1931) Novel: "Finger of Fate".
- (1930) Novel: "Four Rounds of Bulldog Drummond".
- (1930) Novel: "Guardians of the Treasure".
- (1932) Novel: "Island of Terror".
- (1932) Novel: "Jim Brent".
- (1932) Novel: "Jim Maitland".
- (1933) Novel: "Ronald Standish".
- (1919) Novel: "The Man in Rat Catcher".
- (1921) Novel: "Out of the Blue".
- (1927) Novel: "The Saving Clause".
- (1935) Novel: "Shorty Bill".
- (1930) Novel: "Tiny Carteret".
- (1934) Novel: "When Carruthers Laughed".
- (1926) Novel: "Word of Honor".
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