Georgian & Regency novels

• The Black Moth (1921)
• Powder and Patch (1930)
• These Old Shades (1926)
• The Masqueraders (1928)
• Devil's Cub (1932)
• The Convenient Marriage (1934)
• Regency Buck (1935)
• The Talisman Ring (1936)
• An Infamous Army (1937)
• The Spanish Bride (1940)
• The Corinthian (1940)
• Faro's Daughter (1941)
• Friday's Child (1944)
• The Reluctant Widow (1946)
• The Foundling (1948)
• Arabella (1949)
• The Grand Sophy (1950)
• The Quiet Gentleman (1951)
• Cotillion (1953)
• The Toll-Gate (1954)
• Bath Tangle (1955)
• Sprig Muslin (1956)
• April Lady (1957)
• Sylvester, or the Wicked Uncle (1957)
• Venetia (1958)
• The Unknown Ajax (1959)
• A Civil Contract (1961)
• The Nonesuch (1962)
• False Colours (1963)
• Frederica (1965)
• Black Sheep (1966)
• Cousin Kate (1968)
• Charity Girl (1970)
• Lady of Quality (1972)

Historical novels

• The Great Roxhythe (1923)
• Simon the Coldheart (1925)
• Beauvallet (1929)
• The Conqueror (1931)
• Royal Escape (1938)
• My Lord John (1975)

Contemporary Novels

• Instead of the Thorn (1923)
• Helen (1928)
• Pastel (1929)
• Barren Corn (1930)

Contemporary Thrillers

• Footsteps in the Dark (1932)
• Why Shoot a Butler? (1933)
• The Unfinished Clue (1934)
• Death in the Stocks (1935)
• Behold, Here's Poison (1936)
• They Found Him Dead (1937)
• A Blunt Instrument (1938)
• No Wind of Blame (1939)
• Envious Casca (1941)
• Penhallow (1942)
• Duplicate Death (1951)
• Detection Unlimited (1953)

Short story collections

• Pistols for Two and other stories (1960), containing:
  • Pistols for Two
  • A Clandestine Affair
  • Bath Miss
  • Pink Domino
  • A Husband for Fanny
  • To Have the Honour
  • Night at the Inn
  • The Duel
  • Hazard
  • Snowdrift
  • Full Moon

Other short stories

• A Proposal to Cicely (1922)[87]
• The Bulldog and the Beast (1923)[88]
• Linckes' Great Case (1923) [89]
• Runaway Match (1936)
• Pursuit (1939)