The Tombs - by Clive Cussler and Thomas Perry
Husband-and-wife team Sam and Remi Fargo are intrigued when an archaeologist friend requests their help excavating a top secret historical site. What they find will set them on a hunt for a prize greater than they could ever imagine. The clues point to the hidden tomb of Attila the Hun, the High King who was reportedly buried with a vast fortune of gold and jewels and plunder . . . a bounty that has never been found. As they follow the trail through Hungary, Italy, France, Russia, and Kazakhstan—a trail that they discover leads them not to one tomb, but five—the Fargos will find themselves pitted against a thieving group of amateur treasure hunters, a cunning Russian businessman, and a ruthless Hungarian who claims direct descent from Attila himself . . . and will stop at nothing to claim the tombs’ riches as his own.