Arc 6The Mulberry Lake Conspiracy
Xu Qi'an traced the Mulberry Lake disaster to Henghui and the demon forces behind the sealed hand while uncovering the truth about Commandery Princess Pingyang’s death. The case reached the emperor as the Heaven and Earth Society learned of a looming confrontation with Zhou Chixiong.
- Xu Qi'an investigated Henghui’s links to the missing Azure Dragon Temple artifact and learned that Henghui had eloped with Commandery Princess Pingyang.
- The Spirit Dragon rampaged through the palace, but Xu Qi'an stopped it from reaching Lin'an and earned the emperor’s reward while keeping his deadline to solve the case.
- Xu Qi'an and Daoist Jinlian followed clues to Earl Pingyuan’s residence, where Henghui killed the earl’s legitimate son and escaped Xu Qi'an’s attack.
- Xu Qi'an identified Henghui as the killer and discovered that the monk carried the sealed hand from beneath Mulberry Lake, while a fox demon confessed that the Kingdom of Ten Thousand Demons had helped release it.
- Henghui imprisoned Hengyuan and revealed his desire for revenge, but later died after passing that burden to him.
- Hengyuan recounted how Earl Pingyuan’s son and two officials’ sons attacked him and Pingyang, and the Nightwatchers found Pingyang’s remains beneath an old locust tree.
- Prince Yu identified Pingyang’s hairpin and went to petition the emperor, while Xu Qi'an told Huaiqing and the royal siblings how the couple had died.
- Xu Qi'an announced in the Earth Book exchange that he had solved the case, then learned that Number Two had located Zhou Chixiong at a mountain stronghold.