Wubin immediately shouted, "Prepare hot water and roll the wood!"

At this moment, the drum sounds outside the city slowed down, and a man rushed forward and shouted to the soldiers guarding the city, "My general is destined to be free from death, otherwise the day the city is destroyed, the city will be massacred for three days!"

Everyone's face changed drastically on the city wall, their hands slowed down, and their eyes hesitated.

People's hearts are shaken.

Hua Chao looked fierce and reached out to take the bow and arrow of Wu Bin beside him, and bent his bow and aimed at it. Almost as he breathed, everyone heard a whistle passing by.

In a blink of an eye, a muffled groan came from the city, and the man immediately fell down and fell still.

There was silence inside and outside the city.

Hua Chao shouted sternly, "How can we believe the words of the Huns thieves? Opening the city is the day to massacre the city. When Yangqu was attacked by the enemy, the magistrate of Wu County and the magistrate of Du County defended the city to the death and finally came to reinforcements to rescue the people in the city. Today, we also fought to protect the city. After decades of life, we will die for our family, the people, and the Great Jin Dynasty, without regrets!"

Death without regrets! Death without regrets!

It seemed as if the sound was everywhere in the mountains and fields, and it was deafening, and the steps of Yangyi's guards retreating finally became firm.

"Someone has opened the city gate!"

With a shout, Hua Chao and Wu Bin were so shocked that their eyes were red!

Wu Bin immediately shouted, "Take people to guard the city gate quickly, and those who open the city gate will be killed!"

The personal soldiers beside Wu Bin personally rushed down the city wall with their men, and the city gate became chaotic. In less than a moment, the city gate returned to silence.

More than a dozen people who stole the city gate were killed by random swords. Fortunately, they were discovered quickly. Before the Huns' horses were approaching, the city gate was opened less than half and closed. They could only watch the failure and face the arrows on the city walls.

The tug-of-war begins again.

At this time, Gu Yishu personally led his troops to support Yangyi, and three thousand men and women came quietly behind the Huns under the cover of night.

The reason why it came slowly was that the general artillery was transported from Huzhou overnight.

This general cannon was developed by Gu Qingyi when he was studying the projectile. You may not be familiar with the general cannon, but there is one thing that everyone must know, that is the stone throwing machine.

The General Cannon is an evolutionary version of the stone thrower.

According to legend, the stone throwing machine was invented in the Zhou Dynasty and was called a throwing car, but it was only used for throwing at that time.

During the Three Kingdoms, the monarchs and ministers of all countries attached great importance to the manufacturing and use of throwing cars. In the famous Battle of Guandu, the Cao army used a throwing car that could move freely to destroy the Yuan army's oars and chariots. This powerful throwing car was called the Thunderbolt chariot.

However, this kind of throwing car has a huge shortcoming. It fixes the gun mount on the ground or buries the base underground to deploy, which has poor mobility and is time-consuming and labor-intensive installation.

Later, in order to facilitate movement, wheels were installed under the gun mount. Because the gun mount was bulky, it was still very troublesome to change the direction of the projection at any time. For this reason, people invented the "tornado throwing car".

The cannon bolt of this kind of throwing car can move horizontally and rotate, and can throw stone bullets in all directions, also known as "cyclone cannon", but it is still inconvenient to move at any time due to its large weight.

During the Southern and Northern Dynasties, "snap carts" with cannons installed on cars, or "snap boats" with cannons installed on boats, which could act as a mobile force and became a heavy weapon at that time. In the late Sui Dynasty, Duke Li Mi of Wei ordered the general of the guards to supervise the construction of throwing cars, and made 300 aircraft at a time, called "general cannons".

The current time and space level is still in the stage of the thunderbolt chariot. Any place on the city gate on the big city wall must have a thunderbolt chariot guarding the city.

Gu Qingyi knew that the projectile was a good thing, easy to carry and fire, but the Thunderbolt car could not move with the army, and it was very large, so it took no manpower to pull a car, so she racked her brains to think of shooting a car. The name of shooting a car is too ordinary and has no deterrent power, so she borrowed the name of a general cannon, which is very powerful.

She drew a simple picture and asked the carpenter and blacksmith to get the first one for more than two months. However, at that time, Tuoba Di had already gone to Youzhou. Later, Dong Dacheng was also anxious to leave. Only one of the general's cannons was taken away, and the remaining one was originally in Yuzhou. When the Huns suddenly attacked the city, Gu Qingyi asked someone to send it to Gu Yishu overnight.

Yin Qi continued to supervise the construction in Guzhou, and Gu Yishu led the general's cannon on the journey.

There is no news that Youzhou has been released yet, so I didn’t expect Bingzhou to fire the first shot. Things are really unpredictable.

Gu Yishu led his men to hide in the dark, waiting for the Huns to attack the city guards for one day. He only had 3,000 troops, and the Huns were said to have more than 10,000 soldiers. If you want to win with one blow, you must be calm and seize the opportunity.

At midnight, when people were trapped and horses were exhausted, the guards of the Huns were also the weakest.

Gu Yishu asked someone to bury more than a dozen projectiles underground in advance, make the leads, calculate the distance, and then wait for the time to arrive, shake the general's cannon at the center of the enemy and ignite the projectiles. With a roar, everyone stared at the sirens of the leads in the air, and fell into the center of the camp where the enemy was resting.

There was a loud "bang" sound, as if the sky was thunder struck the sky, and huge fire lights accompanied it illuminated half of the sky.

A loud bang not only made the enemy camp panic and chaos, but the fire was shining brightly on the Yangyi city walls, and it was obvious that the defenders were also alarmed, and they had no idea what had happened.

Gu Yishu stared at the front, saw the situation in the enemy camp, and immediately said, "Let it go!"

Another projectile blew across the night sky, and the familiar sound made people tremble. What happened? What happened?

Wu Bin's eyes flashed with strange light, and he grabbed the city wall excitedly and stared at the chaotic enemy camp. He turned his head suddenly to look at Hua Chao, with a trembling voice, "Sir, what is that?"

Hua Chao shook his head, "The sound is like thunder, and the fire is flying. I have never heard of this thing."

"Has our reinforcements arrived? Jinyang sent troops?" In addition, Wu Bin really couldn't imagine anyone who could come to save them now.

Hua Chao stared at the distance without saying a word. He could be so calm, but the soldiers guarding the city had already shouted happily, "The reinforcements are coming, the reinforcements are coming, they are saved!"

Hua Chao let out a long sigh and drew out his sword, "Everyone comes out of the city with me!"

The enemy's chaos is a good opportunity to take advantage of the situation to pursue the situation. It happened to be attacked by reinforcements. The depression that had been held in the stomach these days finally had a chance to ejaculate!

The soldiers of Yangyi almost came out in full swing, rushing towards the enemy formation like a sharp sword.

After leaving the city to pursue the enemy, the enemy was injured by the projectile, especially the loud noise like thunder made them frightened and they would never dare to run away if they were in love with each other.

This run went into the minefield that Gu Yishu had arranged before.

As the projectiles were ignited, the projectiles exploded wherever the enemy went, and the wailing sounds of help were endless. The projectiles were used up. In the fierce battle outside the city, Gu Yishu led his men to rush up.

－－－－－－－－－－－－－－－－－－－
Chapter completed!