Trent's Last Case Masterwork of the genre features detective Philip Trent in a case involving the murder of millionaire American financier Sigsbee Manderson, slain while on holiday in England. Trent matches wits with Scotland Yard’s Inspector Murth. "One of the few genuine classics of detective fiction."—The New York Times. | 1913 | novel | |
| Trent's Own Case | 1936 | novel | |
| Greedy night | 1936 | novel | |
| ELEPHANT'S WORK | 1950 | novel | |
| The feeble folk | 1953 | novel | |
| Trent Intervenes | 1938 | short stories | |
| Trent and the ministering angel | 1938 | short stories |