 Ladbroke Lionel Day Black was born in Burley-in-Wharfedale, Yorkshire. He was educated in Ireland and at Cambridge. He was a journalist and author. He is the creator of 'Havlock Preed', a solicitor. He also wrote several novels featuring 'Sexton Blake', a detective modelled on Sherlock Holmes (under his own name and under the pseudonym 'Paul Urquhart'). See also this list for other Sexton Blake authors. |
Titles and year of publication:
| 'Havlock Preed' Novels | |
| 1) The Killer at Large | 1937 |
| 2) Mr. Preed Investigates | 1939 |
| 3) Mr. Preed's Gangster | 1939 |
| 'Sexton Blake' Novels | |
| 1) The Case of the Crook Banker | 1930 |
| 2) The Informer | 1930 |
| 3) The Mystery Militiaman | 1940 |
| Other Novels | |
| 1) The Mantle of the Emperor (with Robert Lynd) (short stories) | 1906 |
| 2) The Wager | 1927 |
| 3) A Broken Butterfly | 1932 |
| 4) The Gorgon's Head | 1932 |
| 5) The Prince of Poisoners | 1932 |
| 6) The Poison War | 1933 |
| 7) The Secret of Hanger's End | 1939 |
| 8) Her Convict Husband | 1941 |
| As 'Paul Urquhart' | |
| 'Sexton Blake' Novels | |
| 1) Gun Rule | 1931 |
| 2) The Mystery of the Thirteenth Chest | 1931 |
| 3) The Brooklands Mystery | 1932 |
| 4) The Bungalow Crime | 1932 |
| 5) The Mystery of the Rajah's Jewels | 1932 |
| 6) Presumed Dead | 1932 |
| 7) The Double Cross | 1933 |
| 8) Mr. Kilmer Sees Red | 1933 |
| 9) The Victim of Devil's Alley | 1933 |
| 10) Yellow Vengeance | 1933 |
| 11) The Building Estate Murder | 1934 |
| 12) The Crime at the Crossroads | 1934 |
| 13) Murder by Mistake | 1934 |
| 14) The Crime of Count Dureen | 1935 |
| 15) The Borough Council Ramp | 1937 |
| 16) The Man on the Dole | 1938 |
| 17) The Secret of the Dead Men | 1938 |
| 18) The Mystery of the Lorry Driver | 1939 |
| 19) The Secret of the Evacuee | 1940 |
| Other Novels | |
| 1) The Web (with Thomas Cox Meech) | 1907 |
| 2) The Shadow (with Thomas Cox Meech) | 1908 |
| 3) The Exploits of a Dead Man | 1934 |
| 4) Found in Possession | 1935 |
| 5) The House of a Hundred Eyes | 1936 |
| 6) The Black Monk | 1937 |