Dark Union

A ghost from Court's past challenges everything the Gray Man believes in this latest electrifying entry in the #1 New York Times bestselling series.
Court Gentry is the last surviving member of his family. His brother, Chance, was a police officer who lost his life years ago in a line of duty shooting. So how is it possible that Court catches a glimpse of his brother at their father's funeral?
It's this shocking development that sends Court on a quest for the truth and a search for his missing sibling. But the dark state will do anything to keep its secrets.

Mark Greaney has a degree in international relations and political science. In his research for the Armored novels and the Gray Man novels, including The Chaos Agent, Burner, Sierra Six, 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. With Marine Lt. Col. Rip Rawlings, he wrote the New York Times bestseller Red Metal. 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.