Mr Brown
| Book | The Secret Adversary |
| Format | Pocket book |
| Language | French |
| This Edition Published | 1990 |
| Original Title | The Secret Adversary |
| Original Language | English |
| Author | Agatha Christie |
| Translated by | Juliette Pary |
| Publisher | Club des Masques |
| Copyright Holder | Dood Mead & Company Inc., Librairie des Champs-Élysées |
| Series | Tommy & Tuppence |
| Format | Pocket book |
| Language | French |
| This Edition Published | 1990 |
| Copyright | 1932 |
| Copyright | 1922 |
| Catalog Number | 68 |
| ISBN | 2702400728 |