Professor George Mathers and his wife, Xiao Ping, continue their efforts to resolve the mystery of Ma Jun's legacy. Their earlier discovery of ancient writings and relics on Tianmen Mountain in Hunan Province leads them into an adventure their academic training never prepared them for. After a second foray on the sacred mountain, the couple returns to Beijing. There they are catapulted into a series of events that changes everything. New dangers, driven by treachery and greed, surround them. Lives are put at risk, and lost, as the authorities wage war against an international crime ring. Their mission: to recover China's stolen inheritance from the time of the dragons.