"Great fun for the reader....there s never a dull page." Kirkus Reviews
"[An] enjoyable thriller from bestseller Mark Greaney....Explosive action sequences follow as Duffy and company seek to retreat to flat land and safety, and Duffy proves to be more than just a hardened military tactician. Readers will hope he ll be back for an encore." Publishers Weekly
"All hell breaks loose and continues at a murderous pace...Mark Greaney is a master at this type of action thriller." Deadly Pleasures Mystery Magazine
Mark Greaney has a degree in international relations and political science. In his research for the Gray Man novels, including 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 LtCol 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.
