Oceanic explorers Dirk Pitt and Al Giordino find intrigue, adventure, and peril while collecting clues to the mysterious treasure of Xanadu, the famed capital of Kublai Khan's empire. When Dirk Pitt is nearly killed rescuing an oil survey team from a freak wave on Russia's Lake Baikal, it appears a simple act of nature. But when the survey team is abducted and Pitt's research vessel nearly sunk, it becomes clear this is no run of bad luck, but the influence of something, or someone, more sinist