Introduction to the Mystery of the Cliff Mural: On the north wall of the King of Chu's coffin chamber, a life-size shadow is clearly displayed, making a welcoming gesture. What is puzzling is that this phenomenon gradually formed after the official opening of the tomb chamber. , but there are no traces of water seepage outside the shadow. This is due to the different rock quality and the reason why the King of Chu's coffin appeared remains to be verified.