Sam and Remi Fargo return for the thrilling third adventure in the acclaimed new series. The Fargos are used to hunting for treasure, not people. But then a Texas oil baron contacts them with a personal plea, they wind up on a journey that will take them to Tibet, Nepal, Bulgaria, India, and China, the Fargos will find themselves embroiled with black-market fossils, a centuries-old puzzle chest, the ancient Tibetan kingdom of Mustang, a balloon aircraft from a century before its time...and a skeleton that could turn the history of human evolution on its head.