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Sierra Six by Mark Greaney — book cover

Sierra Six

by Mark Greaney
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Synopsis

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.

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Book Details

Published
June 15, 2026
Publisher
Penguin Publishing Group, Berkley
Pages
736
ISBN
9780593099025

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