Clive Cussler (1931–2020) was the author or coauthor of over eighty books in five bestselling series, including DIRK PITT®, THE NUMA FILES®, THE OREGON FILES ®, AN ISAAC BELL ADVENTURE ®, A SAM AND REMI FARGO ADVENTURE ®, and A KURT AUSTIN ADVENTURE ®. His nonfiction works include Built for Adventure: The Classic Automobiles of Clive Cussler and Dirk Pitt, Built to Thrill: More Classic Automobiles from Clive Cussler and Dirk Pitt, The Sea Hunters, and The Sea Hunters II; these 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 discovered more than sixty ships, including the long-lost Civil War submarine Hunley.