A sound of gold came, and the soldiers besieging the city were relieved one by one, and quickly retreated back, perhaps in order to save the materials for defending the city, this time the defenders did not release a rain of arrows, otherwise they would have to leave a corpse in a place.

At this time, the coalition army could only choose to temporarily retreat, the north of the Tiger Prison Pass was built on the south side of the river, and only the east side could attack, and now the city was burning with fire, and it was impossible to attack at all.

If it is simply tung oil, it will not burn for long, but in addition to tung oil, there are corpses in the city, and under the burning of tung oil, the corpses are refined into corpse oil, and this fire will not be extinguished for a while.

Smelling the smell of blood in the air mixed with tung oil and burnt flesh, looking at the defeated soldiers, Zhang Hao's heart flashed a trace of unbearable.

In the art of war, it says: "The first army is to attack and plan, the second is to attack the enemy, the second is to attack the army, and the next is to attack the city." The method of siege is a last resort. "The cost of storming a city is too great.

Only this time of charge, at least tens of thousands of corpses were left under the city, and there was no loss to the defenders, not even the city walls.

This was only a brief contact, and if the siege continued, the defenders would have at least ten more ways to inflict heavy casualties on the besieging army before they could storm the walls.

"My lord, the person in command of this gate should not be underestimated." Looking at the defeated coalition soldiers, Guo Jia said lightly.

"Well, the coalition army was defeated so quickly, although part of the reason is because the coalition forces sent all new recruits, but the people in command at this pass have a grasp of the timing that few people can match." Zhang Hao nodded and said.

"Lord, if my expectations are correct, the person in command in this pass must be Li Su, this person is deeply hidden, not only is his wisdom outstanding, but his martial arts are by no means below me." Hua Xiong on the side stepped forward and said.

"Li Su ......" Zhang Hao muttered the name in his mouth, his brain was running rapidly, thinking about this personal information, this was not the first time he had heard Hua Xiong mention this person, and every time Hua Xiong praised his ability.

Li Su, who is a fellow villager with Lu Bu, is rumored to be a descendant of the flying general Li Guang, these are what Zhang Hao knows now, and in history, Li Su did not leave too much ink and ink.

In history, Li Su once plotted Dong Zhuo with Wang Yun and Lu Bu, but was later killed by Lu Bu because he was defeated when he attacked Niu Fu.

Zhang Hao couldn't understand how Hua Xiong, who praised him so much, could be defeated in the battle with Niu Fu, you know, Niu Fu can have today's status entirely because he is Dong Zhuo's son-in-law, not because of how outstanding his ability is.

Besides, how could Lu Bu directly kill Li Su, who was also a fellow villager, because of the defeat of a battle?

By the way, Ding Yuan, when Li Su persuaded Lu Bu to join Dong Zhuo, he killed Ding Yuan with his own hands, and Lu Bu and Ding Yuan were not just superiors and subordinates.

Lu Bu not only recognized Ding Yuan as his father-in-law, but also married Ding Yuan's daughter as his wife, and when he agreed to follow Dong Zhuo, he also wanted to find an opportunity to avenge Ding Yuan, so that the reason why Lu Bu killed Li Su was found.

"Lord, it seems that this Li Su is really not simple, the princes of the coalition army were completely led by his nose." Just as Zhang Hao was thinking, Guo Jia slowly spoke again.

"Oh? Why? Zhang Hao asked puzzled.

"Lord, what do you guess Li Su needs most now?" Guo Jia did not explain, but asked Zhang Hao a question.

"What does Li Su need most? Time! It's time, whether the reinforcements are already on the way, or he is going to ask for help now, as long as he survives this time, as soon as the reinforcements arrive, the Tiger Prison Pass will be safe. Zhang Hao patted his thigh and said.

"That's right, if the coalition forces in this battle are under my command, they will definitely not withdraw their troops at this time, but let the soldiers dig on the spot, extinguish the fire, storm the Tiger Prison Pass, and not give them a chance to breathe, and take the Tiger Prison Pass before the reinforcements arrive."

"But at this time, the coalition forces did not realize this, and were still waiting for the fire to be extinguished naturally, if there was enough fuel in the pass at this time, they only needed to keep throwing combustibles down the wall, and they could hold on until the reinforcements arrived."

"If you want to inflict more casualties on the coalition forces, you can also wait for the fire to go out, but after burning for so long, the ground will definitely be difficult to walk, and if you wait for the ground to get cold, I'm afraid most of the time will pass."

"If the coalition forces come to attack the city again, it will be dusk, and they can only fight at night, and then they only need to use rolling wood and then supplement it with fire oil, and put a fire, which is enough to burn all night." Guo Jia said slowly, with a confident smile on his face.

"Let's go, go back to the camp and rest, I'm afraid there is nothing to see today." Zhang Hao glanced at the coalition forces that did not have the slightest movement, shook his head and said, and took the lead in the direction of the camp.

As Guo Jia said, the fire burned for a long time before gradually extinguishing until it was dark and the high temperature on the ground receded.

The coalition forces were eager to capture the Tiger Prison Pass, so they risked and chose to fight at night, and this time, the siege soldiers were also fully prepared, not only adding many sword and shield hands in front, but also wetting their clothes with water.

You know, it's still the time of winter and spring, and it's a night battle, and at that temperature, the clothes wet with water are covered with a thin layer of ice ballast.

But compared to the skin and flesh that are scalded by hot oil or burned into carbon slag by fire, a little ice on their clothes is nothing, but this greatly reduces their combat effectiveness.

As usual, a wave of arrows rained down, and this time the soldiers who were mentally prepared were no longer as unbearable as before, although the reaction speed was not fast, but there was no chaos in the formation, and the sword and shield soldiers raised their shields one after another, reducing many losses.

After the siege soldiers rushed to the bottom of the city, they carefully guarded the hot oil as they attacked the city, but this time they were greeted by rolling logs.

When they saw that the city was no longer dumped with hot oil, these soldiers thought that the defenders were running out of tung oil, but they didn't notice the strong smell of tung oil on the rolling wood.

After a round of rolling log attacks, although the damage caused by tung oil was not as great, it also brought a lot of losses, and just as the siege soldiers breathed a sigh of relief, tung oil, which had become their nightmare, was dumped again.

Suddenly, a large number of soldiers were drenched, and the fire that followed once again turned the city into a sea of fire, because there was a large amount of rolling wood stained with tung oil, this time the fire was bigger and more fierce than the previous one.

Even if the soldiers under the city were covered with ice on their clothes, they still could not escape the fate of being engulfed in the fire, until the sound of gold sounded, and those soldiers who were not engulfed in the sea of fire withdrew to the army in embarrassment.

A fire burned all night, and it was not extinguished until dawn, and after dawn, Zhang Hao and the others returned to the hill again, ready to see what else Li Su could do.