The Wheel of Darkness
Title: The Wheel of Darkness
Author: Douglas Preston & Lincoln Child
Taking Constance on an international tour to expose her to a world she has never experienced, FBI agent Pendergast visits the Tibetan monastery where he received martial arts training, only to learn that a rare and dangerous artifact has been stolen.
Amazon Description: FBI Special Agent Pendergast is taking a break from work to take Constance on a whirlwind Grand Tour, hoping to give her closure and a sense of the world that she’s missed. They head to Tibet, where Pendergast intensively trained in martial arts and spiritual studies. At a remote monastery, they learn that a rare and dangerous artifact the monks have been guarding for generations has been mysteriously stolen. As a favor, Pendergast agrees to track and recover the relic. A twisting trail of bloodshed leads Pendergast and Constance to the maiden voyage of the Britannia, the world’s largest and most luxurious ocean liner
and to an Atlantic crossing fraught with terror.