The Paddington Mystery (1925)

Dr. Priestley’s Quest (1926)

The Ellerby Case (1927)

The Murders in Praed Street (1928)

Tragedy at the Unicorn (1928)

The Davidson Case (1929)
APA: Murder at Bratton Grange (1929)

The House on Tollard Ridge (1929)

Peril at Cranbury Hall (1930)

Pinehurst (1930)
APA: Dr. Priestley Investigates (1930)

The Hanging Woman (1931)

Tragedy on the Line (1931)

Dead Men at the Folly (1932)

Mystery at Greycombe Farm (1932)
APA: The Fire at Greycombe Farm (1932)

The Claverton Mystery (1933)
APA: The Claverton Affair (1933)

The Motor Rally Mystery (1933)
APA: Dr. Priestley Lays a Trap (1933)

The Venner Crime (1933)

Poison for One (1934)

The Robthorne Mystery (1934)

Shot at Dawn (1934)

The Corpse in the Car (1935)

Hendon’s First Case (1935)

Mystery at Olympia (1935)
APA: Murder at the Motor Show (1936)

Death at Breakfast (1936)

In Face of the Verdict (1936)
APA: In the Face of the Verdict (1940)

Death in the Hop Fields (1937)
APA: The Harvest Murder (1937)

Death on the Board (1937)
APA: Death Sits on the Board (1937)

Proceed with Caution (1937)
APA: Body Unidentified (1938)

The Bloody Tower (1938)
APA: The Tower of Evil (1938)

Invisible Weapons (1938)

Death on Sunday (1939)
APA: The Elm Tree Murder (1939)

Death Pays a Dividend (1939)

Drop to His Death (1939) [with Carter Dickson]
APA: Fatal Descent (1939)

Death on the Boat Train (1940)

Murder at Lilac Cottage (1940)

Death at the Helm (1941)

They Watched by Night (1941)
APA: Signal for Death (1941)

The Fourth Bomb (1942)

Dead on the Track (1943)

Men Die at Cyprus Lodge (1943)

Death Invades the Meeting (1944)

Vegetable Duck (1944)
APA: Too Many Suspects (1945)

Bricklayer’s Arms (1945)
APA: Shadow of a Crime (1945)

Death in Harley Street (1946)

The Lake House (1946)
APA: Secret of the Lake House (1946)

Death of an Author (1947)

Nothing But the Truth (1947)
APA: Experiment in Crime (1947)

The Paper Bag (1948)
APA: The Links in the Chain (1948)

The Telephone Call (1948)
APA: Shadow of an Alibi (1948)

Blackthorn House (1949)

Up the Garden Path (1949)
APA: The Fatal Garden (1949)

Family Affairs (1950)
APA: The Last Suspect (1951)

The Two Graphs (1950)
APA: Double Identities (1950)

Dr. Goodwood’s Locum (1951)
APA: The Affair of the Substitute Doctor (1951)

The Secret Meeting (1951)

Death in Wellington Road (1952)

By Registered Post (1953)
APA: The Mysterious Suspect (1953)

Death at the Dance (1953)

Death at the Inn (1953)
APA: The Case of the Forty Thieves (1954)

Death on the Lawn (1954)

The Dovebury Murders (1954)

Death of a Godmother (1955)
APA: Delayed Payment (1956)

The Domestic Agency (1955)
APA: Grave Matters (1955)

An Artist Dies (1956)
APA: Death of an Artist (1956)

Open Verdict (1956)

Death of a Bridegroom (1957)

Robbery with Violence (1957)

Death Takes a Partner (1958)

Licensed for Murder (1958)

Murder at Derivale (1958)

Three Cousins Die (1959)

The Fatal Pool (1960)

Twice Dead (1960)

The Vanishing Diary (1961)

A.S.F.: The Story of a Great Conspiracy (1924)
APA: The White Menace (1926)

The Double Florin (1924)

The Alarm (1925)

Mademoiselle from Armentieres (1927)

Night Exercise (1942)
APA: Dead of the Night (1942)

The Secret of High Eldersham (1930)
APA: The Mystery of High Eldersham (1933)

The Menace on the Downs¹ (1931)

The Three Crimes (1931)

Death of Mr. Gantley (1932)

Death at the Crossroads (1933)

Fate at the Fair (1933)

Tragedy at the Thirteenth Hole (1933)

The Charabanc Mystery (1934)

To Catch a Thief (1934)

The Devereux Court Mystery (1935)

The Milk Churn Murder (1935)
APA: The Clue of the Silver Brush (1936)

Death in the Tunnel (1936)
APA: Dark Is the Tunnel (1936)

Murder of a Chemist (1936)

Where Is Barbara Prentice? (1936)
APA: The Clue of the Silver Cellar (1937)

Death at the Club (1937)
APA: The Clue of the Fourteen Keys (1937)

Murder in Crown Passage (1937)
APA: The Man with the Tattooed Face (1937)

Death at Low Tide (1938)

The Platinum Cat (1938)

Death Leaves No Card¹ (1939)

Mr. Babbacombe Dies (1939)

Death Takes a Flat (1940)
APA: Vacancy with Corpse (1941)

Mr. Westerby Missing (1940)

Murder in the Coalhole (1940)
APA: Written in Dust (1940)

Death of Two Brothers¹ (1941)

Up the Garden Path (1941)
APA: Death Visits Downspring (1941)

This Undesirable Residence¹ (1942)
APA: Death at Ash House (1942)

Dead Stop (1943)

Murder, M.D. (1943)
APA: Who Killed the Doctor? (1943)

The Hardway Diamonds Mystery (1930)

Murder at the Moorings (1932)