Clive Cussler is the author or writer of more than fifty prior works, including the Dirk Pitt(R), NUMA(R) Files, Oregon(R) Files, Isaac Bell, and Sam and Remi Fargo series. Built for Adventure: Clive Cussler and Dirk Pitt's Classic Cars, as well as The Sea Hunters and The Sea Hunters II, chronicle the true adventures of the real NUMA, which is led by Cussler and searches for missing ships of historic significance. Cussler has unearthed over sixty ships with his volunteer crew, including the long-lost Confederate ship Hunley. He splits his time between Colorado and Arizona. Graham Brown is the author of Black Rain and Black Sun, as well as Devil's Gate, The Storm, Zero Hour, and Ghost Ship, which he coauthored with Clive Cussler. He is an attorney and a pilot who resides in Arizona.