This is a detective’s guide to traveling through time and space. From the strange masks of Sanxingdui to the underground army of the First Emperor’s mausoleum, from gaps in the historical dating project to mysterious disappearances across the dynasties. This book brings together the most fascinating mysteries from archaeology and history, presenting a range of theories objectively through the latest scientific discoveries and logical deduction. It offers no definitive answers. Instead, it peels back layer after layer, inspiring readers to revere the civilization of their ancestors and explore its secrets.