# Sierra Six - Paperback

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by **Mark Greaney** (Author)

**It's been years since the Gray Man's first mission, but the trouble's just getting started in the latest entry in the #1 _New York Times_ bestselling series.**

Before he was the Gray Man, Court Gentry was Sierra Six, the junior member of a CIA action team.

In their first mission they took out a terrorist leader, at a terrible price. Years have passed. The Gray Man is on a simple mission when he sees a ghost: the long-dead terrorist, but he's remarkably energetic for a dead man.

A decade of time hasn't changed the Gray Man. He isn't one to leave a job unfinished or a blood debt unpaid.

### Author Biography

**Mark Greaney** has a degree in international relations and political science. In his research for the Gray Man novels, including _Relentless_, _One Minute Out, Mission Critical, Agent in Place_, _Gunmetal Gray_, _Back Blast_, _Dead Eye_, _Ballistic_, _On Target_, and _The Gray Man_, he traveled to more than thirty-five countries and trained alongside military and law enforcement in the use of firearms, battlefield medicine, and close-range combative tactics. He is also the author of the _New York Times_ bestsellers _Tom Clancy Support and Defend_, _Tom Clancy Full Force and Effect_, _Tom Clancy Commander in Chief_, and _Tom Clancy True Faith and Allegiance_. With Tom Clancy, he coauthored _Locked On_, _Threat Vector_, and _Command Authority_.

**Number of Pages:** 528

**Dimensions:** 1.13 x 7.95 x 5.42 IN

**Publication Date:** August 09, 2022

## Details

- **Price:** 24.0 GBP
- **Vendor:** BooksCloud
- **Type:** Books
- **Tags:** Action & Adventure, Books, Espionage, Fiction, Political, Price Written on Book, Thrillers

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 24.00 GBP | In stock |

## Images

- Sierra Six

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> Source: [Somiibooks](https://somiibooks.com/products/sierra-six-paperback-1)
> Updated: 2026-08-22