| Number | Author | Title |
|---|
| 401 | Arthur Mills | Brighton Alibi | 1938 |
| 402 | J. M. Walsh | Spies never return | |
| 403 | David Hume | Bring 'Em Back Dead | |
| 404 | Gavin Douglas | The Tall Man | |
| 405 | J. Jefferson Farjeon | Fancy Dress Ball | |
| 406 | Stephen Maddock | Conspirators in Capri | |
| 407 | Sydney Horler | Lord of Terror | |
| 409 | Peter Cheyney | This man is dangerous | |
| 412 | David Hume | Halfway to Hell | |
| 415 | Peter Cheyney | Poison Ivy | |
| 418 | Dorothy L. Sayers | Whose Body? | 1938 |
| 421 | Ethel Lina White | Wax | |
| 423 | Gavin Douglas | Captain Samson, A.B. | |
| 425 | Dorothy L. Sayers | Unnatural Death | 1938 |
| 427 | J. Jefferson Farjeon | Yellow Devil | |
| 429 | David Hume | Cemetery First Stop! | |
| 431 | Peter Cheyney | Dames Don't Care | |
| 433 | Ethel Lina White | The First Time He Died | |
| 435 | David Hume | Good-bye to life | |
| 437 | Berkeley Gray | Mr. Mortimer Gets the Jitters | |
| 439 | Sydney Horler | The Ball of Fortune | |
| 441 | Arthur Mills | Judgment of Death | |
| David Hume | The Gaol Gates are Open | |
| |
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