Sierra Six
First edition cover | |
| Author | Mark Greaney |
|---|---|
| Audio read by | Jay Snyder |
| Language | English |
| Series | The Gray Man |
Release number | 11 |
| Genre | Thriller |
| Publisher | Berkley Publishing Group |
Publication date | February 15, 2022 |
| Publication place | United States |
| Media type | Print (Hardcover), Audio, eBook |
| Pages | 528 |
| ISBN | 9780593098998 |
| Preceded by | Relentless |
| Followed by | Burner |
Sierra Six is an action thriller novel by Mark Greaney, published on February 15, 2022, by Berkley Books. It is the eleventh book in the Gray Man series, featuring assassin and former CIA operative Court Gentry. The novel features two storylines, in which Gentry tracks down a Pakistani terrorist he had crossed paths with twelve years ago as a member of a CIA paramilitary operations unit. It debuted at number four on the New York Times bestseller list.