Grant Blackwood

Grant Blackwood is an American thriller writer and ghostwriter from Austin, Minnesota, and a former U.S. Navy Operations Specialist. He wrote the Briggs Tanner series and co-wrote Spartan Gold with Clive Cussler, which reached number 10 on the New York Times Hardcover Fiction Best Sellers list. His name also appears on Jack Ryan novels such as Tom Clancy Under Fire and Tom Clancy Duty and Honor.