Clive Cussler is the author or coauthor of more than seventy previous books in five best-selling series, including Dirk Pitt, NUMA Files, Oregon Files, Isaac Bell, and Sam and Remi Fargo. His life nearly parallels that of his hero Dirk Pitt. Whether searching for lost aircraft or leading expeditions to find famous shipwrecks, he and his NUMA crew of volunteers have discovered more than seventy-five lost ships of historic significance, including the long-lost Confederate submarine Hunley, which was raised in 2000 with much press publicity. Like Pitt, Cussler collects classic automobiles. His collection features more than eighty examples of custom coachwork. Cussler lives in Arizona.

Boyd Morrison is the coauthor with Cussler of the Oregon Files novels Piranha, The Emperor's Revenge, Typhoon Fury, and Shadow Tyrants, and the author of six other books. He is also an actor and engineer, with a doctorate in engineering from Virginia Tech, who has worked on NASA's space station project at Johnson Space Center and developed several patents at Thomson/RCA. In 2003, he fulfilled a lifelong dream by becoming a Jeopardy! Champion. He lives in Seattle.