A book perfectly timed for the re-setting of the Maya calendar in 2012.... Part history, popular science, armchair travel, and real-life treasure hunt, this is the story of pre-Columbian jade--the precious stone revered by ancient Aztecs, Incans, and Maya--and the scientists, collectors, explorers and entrepreneurs who have been searching for the mythical jade mines for more than a century. "A compelling tale.... This well-focused and well-told...