from the stronghold, at least temporarily, as an appeasement to Zhu Tong. Zhu is furious with Li for killing a magistrate's four-year-old son placed in his care. The killing is ordered by Wu Yong, Liangshan's chief strategist, to leave Zhu with no choice but to join Liangshan. Seeing Chai Jin is bullied, Li Kui charges forth and thrashes Yin to death. Chai tells Li to flee. When told of Yin's death, Gao Lian is furious and orders Chai be arrested, dismissing the latter's danshu tiequan as a piece of empty and obsolete document. Song Jiang launches a military attack on Gaotangzhou to save Chai Jin. After Gongsun Sheng defeats Gao Lian in a battle of magic, the outlaws flock into the prison to search for Chai Jin. But none could locate him. A jailer tells them he has hidden Chai in a dry well to keep him from being harmed by Gao. Li Kui volunteers to go down the deep shaft to fetch Chai up. As Chai has been tormented and deprived of nourishment for days, he is close to death when hauled out of the well. Fortunately, he survives. Chai Jin joins Liangshan, knowing that the danshu tiequan is a fraud. Becoming an outlaw Chai Jin is placed in charge of Liangshan's accounts with Li Ying after the 108 Stars of Destiny came together in what is called the "Grand Assembly". He participates in the campaigns against the Liao invaders and rebel forces in Song territory following amnesty from Emperor Huizong for Liangshan. Midway in the campaign against Fang La, Chai Jin and Yan Qing travel to Fang's base in Qingxi County (清溪縣; present-day Chun'an County, Zhejiang) in the guise of merchants in a plan to infiltrate his rebel force. Chai Jin, using the false name "Ke Yin" (), is brought before Fang, who is charmed by his looks and eloquence. He even marries his daughter to him. When Fang fights his last-ditch battle with Liangshan, Chai Jin suddenly sets upon his force. Fang La‘s side is thrown into disarray, leading to his capture. Chai's wife hangs herself. Later life Chai Jin is one of the Liangshan heroes who survive all the campaigns. After serving in the imperial court for a while, he resigns, certain that sooner or later he would be punished for having been Fang La's son-in-law. He returns to Cangzhou and lives in comfort for the