In five best-selling series, including Dirk Pitt, NUMA Files, Oregon Files, Isaac Bell, and Sam and Remi Fargo, Clive Cussler is the author or co-author of more than 50 previous books. His nonfiction works include Built for Adventure: Clive Cussler's and Dirk Pitt's Classic Automobiles, plus The Sea Hunters and The Sea Hunters II. They describe the true adventures of the real NUMA, which, led by Cussler, searches for historically significant ships lost. Cussler has discovered more than 60 ships with his crew of volunteers including the long-lost Confederate ship Hunley. He resides in Arizona.