Wen RuoHan confronts Wei WuXian about his powers and the latter reveals that he uses what he called the "Stygian Tiger Seal". While the two gets head-on, Meng Yao uses the opportunity to kill Wen RuoHan and Wei WuXian collapses from overusing the power. Three days later, Wei WuXian awakes and learns from Jiang YanLi that Lan WangJi has been playing his guqin to calm his soul. Lan WangJi continues to do the same until they hear pleas coming from outside. Lan WangJi then explains that the remaining people of the Wen Sect are being captured and killed, plus the three Stygian Iron are destroyed. On the other hand, Jin GuangShan has reclaimed Meng Yao as his son again and is now renamed as Jin GuangYao. Outside, Lan WangJi asks Wei WuXian where he has gotten the Stygian Tiger Seal and Wei WuXian explains that he has been using the Stygian Sword he found back in XuanWu Cave. They then hear the pleas of the Wen Sect again and rush to stop Jin ZiXun from killing the innocent elderly and weak. At the same time, Lan XiChen, Nie MingJue and Jin GuangYao become sworn brothers. That night, the four great clans gather to celebrate the end of the Wen Sect. During the party, Wei WuXian and Lan WangJi spend the time outside, away from the crowd. Back inside, Jin GuangShan pressures Jiang Cheng to reconsider the marriage between Jiang YanLi and Jin ZiXuan. (Source: Wikipedia)