| Year | Award | Category | Status |
|---|---|---|---|
| 1999 | Bram Stoker Award | Superior Achievement in a Novel | Winner |
| 1999 | International Horror Guild Award | Best Novel | Nominee/Finalist |
| 2000 | Locus Poll Award | Best Fantasy Novel | Nominee/Finalist |
| 2001 | British Fantasy Award | August Derleth Fantasy Award (Best Novel) | Nominee/Finalist |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| August 1999 |
|
Mr. X | Random House | Novel | |
| March 2000 |
|
Mr. X | HarperCollins (UK) | Novel | |
| May 2000 |
|
Mr. X | Plon | Novel | |
| July 2000 |
|
Mr. X | Ballantine Books | Novel | 1 |
| February 2001 |
|
Mr. X | HarperCollins (UK) | Novel | |
| February 2001 |
|
Mr. X | France Loisirs | Novel | |
| January 2002 |
|
Mr. X | Presses Pocket | Novel | |
| September 2003 |
|
Monsieur X | Fleuve Noir | Novel | |
| May 2010 |
|
Mr. X | HarperCollins (UK) | Novel | |
| July 2010 |
|
Mr. X | Ballantine Books | Novel | |
| March 2016 |
|
Mr X | Bragelonne | Novel | |
| February 2025 |
|
Mr. X | Ballantine Books | Novel |