Clive Cussleris the author or coauthor of thirty-five previous books, including nineteen Dirk Pitt#xae; novels, seven NUMA#xae; Files adventures, five Oregon Files books, three works of nonfiction, and his historical adventure, The Chase. Dirk Cussler, an MBA from Berkeley, worked for many years in the financial arena and now devotes himself full-time to writing. He is the coauthor with Clive Cussler of Black Windand Treasure of Khan. For the past several years, he has been an active participant and partner in his father#xc2;#x92;s NUMA#xae; expeditions and served as president of the NUMA#xae; advisory board of trustees.