The Hard Line (Gray Man) by Mark Greaney

https://www.amazon.com/Hard-Line-Gray-Man/dp/0593954815

The Gray Man, the world’s deadliest assassin and apex predator, discovers he’s really the prey in the most shocking entry of this #1 New York Times bestselling series.

Family means different things to different people, but in the Gray Man’s world, family is defined by blood—the blood you share with some and the blood you shed with others.

Court Gentry’s current family operates out of an office park in Norfolk, Virginia. The Ghost Town is an off-the-books direct action team run by Matt Hanley, former CIA Deputy Director. They take on the jobs the Agency needs handled “discretely,” and those jobs are rolling in.

Somewhere at the top of the US Intelligence apparatus, security experts and intelligence operations worldwide are threatened.

It starts with a blown safe house in Tunis. Then Court himself barely escapes from an ambush in the jungles of Nicaragua. Now key members of the U.S. counterintelligence community are being assassinated in their own neighborhoods. With the feds compromised, it’s up to Court and his team to stop the hit squads.

But eliminating professional kill teams may be the least of the Gray Man’s worries when he finds himself targeted by the legendary assassin codenamed Whetstone—a man driven out of retirement by a very personal quest to rain down hellfire on Court and everyone he’s ever loved, starting with the father he hasn’t seen in twenty years.