Relentless (Greaney novel)
First edition cover | |
| Author | Mark Greaney |
|---|---|
| Audio read by | Jay Snyder |
| Language | English |
| Series | The Gray Man |
Release number | 10 |
| Genre | Thriller |
| Publisher | Berkley Publishing Group |
Publication date | February 16, 2021 |
| Publication place | United States |
| Media type | Print (Hardcover), Audio, eBook |
| Pages | 528 |
| ISBN | 9780593098950 |
| Preceded by | One Minute Out |
| Followed by | Sierra Six |
Relentless is an action thriller novel by Mark Greaney, published on February 16, 2021, by Berkley Books. It is the tenth book in the Gray Man series, featuring assassin and CIA operative Court Gentry. The novel centers on efforts by Gentry to find a missing NSA agent and later to stop a proxy war between Iran and the United States. It debuted at number four on The New York Times Best Seller list.