Clive Cussler's Dark Vector (Penguin Books)

In 1808, the infamous Chinese Pirate Queen Ching Shih's fleet is betrayed by a rogue captain and a ship of treasure sinks into the deep waters. Kurt Austin and Joe Zavala have been trailing the legendary hoard but their efforts are interrupted by the threat of the disappearance of a freighter carrying the most advanced computers mankind has seen thus far. The battle is on as cyber-war takes hold and Kurt and Joe's only allies are a crew of untrustworthy pirates and knowing who to trust could be the NUMA crew's most daunting mission yet...