Lu Zizheng was warmly welcomed by everyone in Xiling. He found Wang Tianshan alone and tested his attitude towards the Holy Blood Sect in his words, but Wang Tianshan's answer did not satisfy him.That night, Wang Tianshan held a banquet to welcome Lu Zizheng back. After drinking and talking, the disciples of Xiling were poisoned and died one after another.Lu Zizheng revealed his identity as the leader of the Holy Blood Sect and gave Wang Tianshan another chance to choose. He hoped that Wang Tianshan, the only one who truly loved him, would surrender to the Holy Blood Sect, but Wang Tianshan refused to do so.Lu Zizheng threatened Wang Tianshan's life and forced Zhang Sifeng to hand over the treasure map. Unexpectedly, Wang Tianshan drew his sword and committed suicide, which shocked Lu Zizheng.Zhang Sifeng told Lu Zizheng that he was a step late after all, and after saying this, he passed away and ascended to heaven.Lu Zizheng deduced that the treasure map of the Xiling Sect had been handed over to Gu Qingqiao by Zhang Sifeng. In anger, he burned Xiling on fire and went to Jizhou Academy to find Gu Qingqiao.At the same time, Duan Yu suddenly received news that Duan Shaoyi was missing in Jizhou, and Gu Qingqiao decided to accompany him despite his father's objection.When they arrived at Jizhou Academy, they found that Duan Shaoyi had won a large sum of money from cockfighting. They followed the clues to a gambling house, but they failed to get any useful clues from the gambling house owner.After further combing, everyone discovered that Duan Shaoyi had collected many objects with "zhu%" in their names in Jizhou, among which a night-light pearl disappeared together with Duan Shaoyi.