Series NUMA Files

Fire Ice is a 2002 book by Clive Cussler and is book #3 in the NUMA Files series. Check Price on Amazon

Blue Gold is a 2000 book by Clive Cussler and is book #2 in the NUMA Files series. Check Price on Amazon

Serpent is a 1999 book by Clive Cussler and is book #1 in the NUMA Files series. Check Price on Amazon