Clive Cussler was born in Aurora, Illinois on July 15, 1931. He attended Pasadena City College for two years before enlisting in the United States Air Force during the Korean War. After his discharge from the military, he worked first as a copywriter and later as a creative director for two of the nation's most successful advertising agencies. At that time, he wrote and produced radio and television commercials that won numerous international awards, including one at the Cannes Lions International Advertising Festival. He began writing in 1965 and published his first novel featuring Dirk Pitt in 1973. His first non-fiction work, The Sea Hunters, was published in 1996. He has written over 50 books including the Dirk Pitt series, the NUMA Files series, Oregon Files series, Isaac Bell series, and the Fargo Adventure series. He is the Chairman of NUMA (National Underwater and Marine Agency), a non-profit group which he founded. He and his crew of marine experts and NUMA volunteers have discovered over 60 historically significant underwater wreck sites. Clive Cussler died on February 24, 2020 at the age of 88. (Bowker Author Biography)

Graham Brown is a former pilot, lawyer, entrepreneur, and bestselling author. Brown is the author of the Hawker/Laidlaw series. The first novel in the series, Black Rain, was published in January 2010. It was followed by Black Sun, published in September 2010, and The Eden Prophecy, released January 31, 2012. Graham has co-authored 6 novels of the NUMA Files Series with perennially bestselling author Clive Cussler: Devil's Gate ( 2011); The Storm (2012); Zero Hour (2013); Ghost Ship (2014); The Pharoah's Secret (2015); Nighthawk (2017); and most recently The Rising Sea (2018). (Bowker Author Biography)