Clive Cussler was the author of more than eighty books in five bestselling series, including Dirk Pitt®, NUMA® Files, Oregon® Files, Isaac Bell®, and Sam and Remi Fargo®. His life nearly paralleled 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 discovered and surveyed more than seventy-five lost ships of historic significance, including the long-lost Civil War submarine Hunley, which was raised in 2000 with much publicity. Like Pitt, Cussler collected classic automobiles. His collection featured more than one hundred examples of custom coachwork. Cussler passed away in February 2020.

Jack Du Brul is the author of the Philip Mercer series, most recently The Lightning Stones, and is the coauthor with Cussler of the Oregon Files novels Dark Watch, Skeleton Coast, Plague Ship, Corsair, The Silent Sea, and The Jungle, and the Isaac Bell novels The Saboteurs and The Titanic Secret. He lives in Virginia.