CLIVE CUSSLER is the author or coauthor of more than fifty previous books in five bestselling series, including Dirk Pitt® , NUMA® Files, Oregon® Files, Isaac Bell, and Fargo. His most recent New York Times bestselling novels are The Bootlegger, The Mayan Secrets, and Zero Hour. His nonfiction works include Built for Adventure: The Classic Automobiles of Clive Cussler and Dirk Pitt, plus The Sea Hunters and The Sea Hunters II; the latter two describe the true adventures of the real NUMA® , which, led by Cussler, searches for lost ships of historic significance. With his crew of volunteers, Cussler has discovered more than sixty ships, including the long-lost Confederate submarine Hunley. He lives in Colorado.
GRAHAM BROWN is the author of Black Rain and The Eden Prophecy. A pilot and an attorney, he lives in Arizona.