# Sierra Six by Mark Greaney (Paperback)

**A TERRORIST BACK FROM THE DEAD. A DEBT TO BE PAID.**  
  
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, but at a terrible price - the life of a woman Court cared for. Years have passed and now 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 may have gone by but the Gray Man hasn't changed. He isn't one to leave a job unfinished or a blood debt unpaid.  
  
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**'I love the Gray Man'  
**Lee Child  
  
**'So propulsive, the murders so explosive, that flipping the pages feels like playing the ultimate videogame'  
**_New York Times_

## Details

- **Price:** 8.99 GBP
- **Vendor:** Little, Brown Book Group Limited
- **Tags:** All Books, Thrillers

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 8.99 GBP | In stock |

## Images

- Sierra Six by Mark Greaney book cover

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> Source: [Somiibooks](https://somiibooks.com/products/sierra-six-mark-greaney-9780751578508)
> Updated: 2026-09-13