In the third year of Tianquan, Lin Qingfeng, the master of Feng Pavilion on the Beilin National Road, disappeared within the palace wall. Her direct disciple Xu Daochen died mysteriously in the pavilion. At this time, the elders in the pavilion left one after another and only one was left empty. In order to obtain the authentic copy of "Tiangong Kaiwu", Mu Zhaoxue broke into the mausoleum of the Lord of Beilin alone. Surrounded by twelve ice coffins, she played chess with the remnant souls of past pavilion masters resurrected in the coffins. Every time she landed a piece, the ice coffin exploded, and the flying fragments cut her wrist open, and the blood formed a Beidou pattern on the chessboard.
