Geng Gong left Jiaohe (now Turpan) and crossed the ancient road of Cheshi, and after returning to Jinmancheng (Jimusar), he raised the city wall every day, trained soldiers, and collected grain and grass. The generals Shi Xiu and Zhang Fengju said: "Chen Duhu and Captain Guan set up cards to collect taxes, sent troops to protect merchants, and made a lot of money, the army is so rich that our army has been full of money for a long time, and the army has no military pay except for food, and I am afraid that the army will be unstable in the long run." ”

Geng Gong said: "We led the army to leave the country for thousands of miles, although the black tyrant is defeated, his heart will not die, Chen Duhu connived at the sergeants to accumulate people's wealth, if the enemy army comes to attack, the sergeant has money, the generals have many treasures, and An can resist the enemy?" This is the way to die. I persuaded him many times, but not only did he not listen, but he also thought that I had two hearts, and Captain Guan catered to him, so I thought that the Western Regions would become enemies in the long run. We can only train our soldiers diligently and strengthen our vigilance in case of accidents. The two subordinates were speechless. Geng Gong said: "Since we have joined the army, we should do our best to serve the country, if we want to make a fortune, why do we want to come here?" Don't look at them bleeding now, I think they're bleeding. I hope that the two of you will not envy them and strengthen their vigilance. After hearing this, the second general lowered his head in shame and said, "The last general will listen to the order." ”

Time flies, and on this day, Geng Gong was discussing with the generals, and overheard a report from Tanmalay: "General, the big thing is not good, Jiaohe City has been occupied by Hei Batian." Geng Gong was taken aback, and thought to himself, when General Dou Gu arranged for us to garrison Jinmancheng, Chen Muyang disobeyed the yin and insisted on not listening to the advice, and now it has reached this point, and I don't know if he is dead or alive. Thinking of this, Geng Gong immediately ordered the generals to enter the mansion to discuss the matter, while letting people probe again, and sent someone to report to Ban Chao quickly.

Tanma came back to report that the Black Batian Brigade was divided into two routes, one to attack Liuzhong, and the other was about 10,000 people marching towards Jinman. Geng Gong said to the generals: "Generals, the river has been lost, and now the enemy army has about 10,000 people to attack Jinman, and we only have 2,000 soldiers and horses, do you have a strategy to resist the enemy?" Zhang Feng said: "The enemy is outnumbered, and according to common sense, we will definitely be defeated, so I think there must be a clever plan to kill him first, teach them to know the bravery of the Han army, in order to shock the thieves, and we can also win time to find other strategies." Duwei Si Pingqiu said: "The river has been lost, the enemy brigade is coming, we are waiting for the lonely city to be difficult to defend, it is better to abandon the city and retreat, stationed in Liuzhong, and Guan Xiaowei to join forces, and then ask the court for help." Shi Xiu said: "If you abandon the city and flee without a fight, the court will inevitably blame." The city is strong, with plenty of food and grass, and I think it will last for months. Let's think about it here. Geng Gong said: "I agree with General Shi's opinion, this city must not be abandoned unless it is absolutely necessary." With this city, the black overlord is like a thorn in the back, and he will not dare to offend my border, once this city is abandoned, Liuzhong will collapse, and the border of the Han Dynasty will be exposed to the iron hooves of the black overlord. As the saying goes, raising soldiers for a thousand days, using soldiers for a while, I have made up my mind and sworn to stick to this city. All the generals nodded yes.

Geng Gong saw that everyone was united, and he was secretly happy in his heart, so he continued to cheer everyone up: "As long as I wait for one block ten, I can resist the black tyrant." All the generals are gearing up and asking for battle. Geng Gong pondered for a moment and said: "Shi Xiu listens to the order, you lead five hundred soldiers out of the city immediately and ambush Jinman Mountain." The enemy's army will be exhausted from the expedition, and the battle will be numerous, and it will be paralyzed. Tonight, Zhang Feng and I led a thousand soldiers out of the city, raising fire as a signal, let's attack from both sides, and kill him first with a frightened heart. The rest of the soldiers were led by Si Pingqiu and strictly guarded the city gates. "Shi Xiu ordered his troops to go out of the city with five hundred ambushes.

The Black Tyrant general Xiu Li, with more than 10,000 people, set up camp about five miles away from Jinman. At this time, the spies came to report, "Geng Gong saw that the army was coming, and the city gate was closed and heavily guarded. Seeing that the Jin Manchu Han army had been prepared, Xiu Li ordered his subordinate Jin Tu to lead 3,000 soldiers to camp at the south gate of Jin Manchu to cut off Geng Gong's back road. Then the order went down: "Rest today, tomorrow siege." ”

The Black Tyrant Heavenly Soldiers worked hard all the way, and they heard Xia Huo say that there were only 2,000 Han troops in the city, so they slept with confidence. In the middle of the night, Geng Gong personally led a thousand soldiers and opened the north gate to sneak to the front of the Black Tyrant army. Seeing that Hei Batian's defense was relaxed, all the troops lit fire and beat drums, shouting in unison, "Kill!" Geng Gong rushed into the camp first. The Black Tyrant was sleeping soundly, and suddenly saw torches all over the field, shouting everywhere, and suddenly panicked, where did he still think of resisting, one by one, like a lost dog, holding his head and running away. In an instant, thousands of people have been killed by the Han army. Hugh Litam also woke up in a dream and hurriedly ordered the army to counterattack. At this time, Shi Xiu, who was ambushed at the foot of Jinman Mountain, had already arrived at the north of the Black Batian camp, and when he saw the fire in the south, the sound of killing shook the sky, and he hurriedly raised his arms and shouted: "Kill!" "The Black Tyrant is already a frightened bird, panicked. Shi Xiu led 500 soldiers one by one like tigers down the mountain, cutting melons and vegetables, as if entering a no-man's land. By the time Xiu Litam came to his senses, the Black Overlord Heavenly Soldiers were already full of corpses, and most of the 10,000 soldiers and horses had died, and he hurriedly led his troops to break through. Geng Gong saw that Xiu Litam was defeated, so he ordered Shi Xiu and Zhang Feng to say: "There is no need to chase after Xiu Litam, you two each led 500 soldiers and horses to the enemy camp south of the city." I led my men and horses to escort the horses, grain and grass abandoned by the enemy back to the city. Shi Xiu and Zhang Feng had to take advantage of the night to go to the south gate.