The Last Tomb Robber

Thirty years ago, my grandfather and Fa Xiao teamed up to rob a tomb. They all died miserably, and my grandfather, who was living alone, also fell mad and disappeared. Thirty years later, I followed my grandfather's old path and went to the cave to search for the tomb... A three-headed snake mother, a burial ditch for thousands of people, and a crystal coffin that floated in the underground waterway without seeing the light of day. In the bizarre underground world, I survived in death, and pursued six human skins with mysterious maps carved on them, just to unravel layers of mysterious ancient veils.