The Assassination of Nie Yin Niang

After the An-Shi Rebellion was pacified, An-Shi's remnants formed the Feiyi Gang, which secretly wandered between the vassal towns, uniting vertically and horizontally, in an attempt to incite the commanders to raise troops in Hebei and profit from it. In order to eradicate the Feiyi thieves, the imperial court ordered the swordsman Pei Min Gong to recruit some swordsmen from the rivers and lakes and set up Changshuimen. In the twelfth year of Zhenyuan, the Feiyi Gang and Changshuimen each got confused under Wei Bo Bu, and the two sides started a thrilling battle of life and death.
(Source: Chinese = Douban || Translation = MDL)