Since 1999, China’s leading explorer, How Man Wong, and his organization, CERS (The China Exploration and Research Society) have been trying to save the last vestiges of a lost tribe of China. They were a civilisation who buried their dead in wooden coffins hanging precariously off the side of cliffs in the Yunnan and Sichuan Provinces.

Their efforts are a race against time as the coffins are now more endangered then ever: pollution and encroaching urbanization compete with modern day grave robbers to destroy these precious artefacts.

This archaeological thriller follows the scientific race to unravel the mysterious coffins, and a challenge for How Man and CERS as they continue to preserve what remains of the enigmatic civilization from half a millennium ago.