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Li Bao ordered the Jin soldiers to push the boarding car back to the moat Jinying, and let him bring the Song soldiers to increase the height of the boarding car by four feet, so that the boarding car was already three feet higher than the head of the city, and the Liao soldiers wanted to throw a hundred thousand catties of logs up and roll down the steps, but they couldn't do it.

Xie Wanli stood at the head of the city and looked at the Song soldiers in the distance to increase the climbing car, the corners of his mouth smiled contemptuously, he ordered the Liao soldiers to move dozens of clay pots in the corner of the city to the city, and slowly approached after the boarding car was heightened, Xie Wanli gave an order, the Liao soldiers at the head of the city picked up these clay pots and threw them to the boarding car, the clay pot was broken, and the lamp oil contained in it flowed down the boarding car, Li Bao was shocked, and hurriedly ordered the climbing car to be pushed back, the climbing car moved very slowly, Xie Wanli commanded the Liao soldiers to shoot rockets on the boarding car, the boarding car was all wooden, After pouring oil, it is very easy to burn, and in a short time, the boarding car becomes a fire rack, and it cannot be extinguished if you want to put it out.

Wan Yanliang sighed that it was a pity, if some fire prevention measures had been done earlier, such as watering the city car, maybe he would have taken advantage of this to climb the city, the city car was time-consuming and labor-intensive, and it was impossible to build another one in a short time.

Wan Yanliang asked Li Baodao: "Where is the 10,000-pound hammer that General Li said?" Li Baodao: "The 10,000-pound hammer is still thirty miles away, if you want to break the city, it doesn't look easy to climb to the top of the city, it's better to try digging tunnels."

Wan Yanliang shook his head and said: "It takes a long time to dig a tunnel, and there is a watchtower at the head of this city, and there must be a listening room in the city, I'm afraid it's useless." Li Bao said: "There are city digging vehicles in our army, dig a tunnel into the city, and you can dig through it at dawn."

After Yan Liang heard what he said, the name of the city digging car was unheard of, and he didn't know what it was, Li Bao personally sent several strong men to check under the city wall with shields, frowned and chose a place under the city wall for a long time and said: "Let's start digging here."

The place where the capital city of Yunnei Prefecture is located is a shallow hilly area, not only the foundation of the city wall is a huge stone built from the Western Xia, there are many stones on the ground under the city itself, and it is very laborious to excavate, no wonder Li Bao is frowning, Yunnei Prefecture is not as good as Ningren on land and water conservancy, and the transportation is not as convenient as Roufu, but the Liao State chose this place to be the capital city, and the important reason is that the city is easy to defend and difficult to attack.

Digging tunnels under the city wall, as long as the digging is big and wide enough, it is equivalent to opening another city gate.

Wan Yan Liang heard that Li Bao was going to dig the city at the foot of the city wall, he was surprised, he must know that digging a tunnel into the city is to have the meaning of a surprise attack, naturally the more hidden the better, the excavation place is far away from the city, but also to do some camouflage, the tunnel passes through the bottom of the moat, one accidentally dug through, the river water will pour in, the consequences are very strict, it is a large amount of work.

The defenders often set up a listening room deep underground under the city walls, using large vats to listen to the sound of excavation, and the watchtower at the head of the city to observe the enemy camp, if there is a new layer of soil raised, the moat becomes muddy, you know that the enemy army is digging tunnels.

Li Bao wants to blatantly dig a tunnel at the foot of the city wall, which is naturally much faster, but how can the Liao soldiers at the head of the city watch you dig indifferently? When the city digging cart was pushed under the city wall, Fang Jinshi understood.

This city digging car is like the big container of later generations, the wall and the top are very thick hard pine planks, there are some standing wood supports, in order to prevent fire, the top is thick with silt, this city digging car is pushed to the foot of the city wall, the gold soldiers are buried in the car and try their best to dig, the Liao soldiers at the head of the city can not destroy the city digging car whether it is a big stone or wood, and even the Liao soldiers carried the stone lion in front of the government and threw it down, and did not smash the solid city digging car.

The Liao soldiers could not get out of the city, they could only see that there was no way, the city digging car extended straight to the moat, and the winch rope trolley was set up inside, and the excavated soil and stones were poured into the moat, although the excavation was not interfered with by the enemy army at the head of the city, but the foundation of Yunnei Prefecture was too hard, and there were many stones, and the space inside the city digging vehicle was limited, so the excavation progress was not fast.

The golden soldiers dug down very deep before digging in the direction of the city, in order to bypass the foundation built by the huge stones in Yunneizhou, and the next morning, the digging golden soldiers moved away some stones, and a hole appeared.

This hole is dug bigger, in front of it is the boulder foundation of the city wall, extending two lanes to both sides, the black does not know where it leads, the face is bright, the heart is happy, this is clearly dug to a mysterious underground palace under the city, or to dig through the secret tunnel of the Liao army.

Wan Yan Liang ordered the excavators to withdraw, and the siege soldiers entered the tunnel from the digging car, and advanced to the dark passages on both sides, which was very narrow, allowing only one person to advance, and walked a short distance all the way, and came to a large hall.

The top of this hall is three zhang high, and there are a lot of hay and cotton wool on the ground, as if it is an underground warehouse for Liao soldiers to store these materials, and continue to move forward along the laneway, and there is another hall not far away, and the things inside are the same, and they have been walking four or five halls, and a small stone door in front is closed.

The leaders of the Jin soldiers believed that when they opened this stone gate, they were in front of Yunnezhou City, and ordered the Jin soldiers to step forward to pry open the stone gate, and suddenly there was a sound overhead, and a square hole appeared on the top of the hall, and a ray of sunlight shot in, and the Jin soldiers looked up one after another.

There is a stream of water pouring down from above at the entrance of this cave, drenching the golden soldiers on the ground, and then the people on it laughed, it turned out that this person urinated down, and then a few more people peed down, and the above turned out to be the Liao soldiers of Yunnei Prefecture City.

After a few bubbles of urine, many torches and burning wood were thrown from the hole, the hall was full of hay and cotton wool, the fire burned quickly, the golden soldiers ran out together, but the exit was narrow, several people crowded together when fleeing, the back was crowded, no one could get out, several halls were on fire at the same time, the underground smoke could not get out, the fire had not yet burned, and the smoke was smoked.

This tunnel hall has become a hell on earth, the ghost cries and the wolf howls, there is no escape in the underground, some golden soldiers want to go out, wantonly slash and kill the companions blocking the road in front, but the only ones who escaped are only a few people who came in behind.

Wan Yanliang looked at the Jin soldiers who escaped from the city digging car, and couldn't understand why there was a fire burning underground, in fact, what the Jin soldiers dug was not a secret passage in the underground palace, but an anti-digging trench dug by the city defense of Yunnei Prefecture.

Wanyan Liangtie blushed, waited for a while, and said to Tang Kuo: "Order to clear the passage, and then send someone in." Li Bao said: "No, if you go in, you will be sent to death." Wan Yan Liang said: "The combustible things have been burned out, where are you afraid of him?" Li Bao sighed and said: "The fire is gone, but there is still water, this anti-digging ditch must have a channel with the river, it is useless to enter the number of people, this method should be abandoned."

Wan Yan Liang said angrily: "The siege of the city has been more than a day, with nearly 10,000 casualties, and I haven't even fought head-on with the Liao army. Li Baodao: "For today's plan, the only way to do this is to use a 10,000-pound hammer to hit the city gate." Wan Yanliang said: "Then General Li still hasn't ordered the 10,000-jin hammer to be transported up, when will it be?"

Li Bao saw that the young general Wan Yan Liang was already angry, and he didn't dare to slack off, so he asked his subordinates Song Bing to push out the 10,000-jin hammer, this 10,000-jin hammer is a door-knocking device, the golden soldiers hit the city gate, and they were carrying a big tree trunk to rush in unison, this 10,000-jin hammer hit the door is only a little thinner than the trunk used by the Jin soldiers, it is more than twice the weight of the trunk, and the impact force is greater, the iron pillar is hung on a wooden frame with an iron chain, and there are more than a dozen wheels under the wooden frame. In addition, the weight of the iron pillar itself slammed against the city gate.

Although the city gate of Yunnei Prefecture is extremely hard, but the golden soldiers kept burning for a day, the strength of the hammer is very domineering, under the continuous impact, the iron gate gradually collapsed, the inner wooden door nails flew, the golden soldiers shouted the trumpet, quickly pushed the hammer and hit it violently, the city gate finally could not withstand this force, and the left and right holes opened.

The Liao soldiers defending behind the door shouted: "The door is broken, quickly put down the jack gate!" The sound of shouting and weapon fighting converged, and the golden soldiers poured in from the city gate like the tide of the embankment, the momentum was like a rainbow, and the shouting and killing shook the sky.

The soldier in charge of the jack gate in the Liao army on the side pulled out the winch of the jack gate and fastened the pin, so that the hammer smashed the winch, the jack brake shook, but did not fall immediately, the reason is that the jack gate has not been moved for more than two years, and the winch chain is rusty and stuck, although the stone of the jack gate is not only extremely heavy, but also does not fall at once.

The jack gate is also known as the rope pass, is the last level to enter the city, the stone slab used in the rope pass of Yunnei Zhou City can no longer be called a stone slab, but a boulder nearly two feet thick, one zhang high, the weight is too heavy, it takes 100 people to work hard for a day at a time, the defenders of Yunnei Zhou City are afraid of trouble, and they also firmly believe that it only takes a blink of an eye to fall down the rope pass, and it does not fall in advance, and an important function of the rope pass is that in case a small number of enemy soldiers break through the city gate, they will fall down the rope pass to isolate these enemy soldiers in the urn city, It is convenient for the head of the city and the defenders of the city to shoot and kill.

But the jack gate at this critical moment actually made a big joke to the Liao army, too long without the winch chain stuck, the Liao soldiers who fell into the pass followed another hammer, but it was too late, the Jin soldiers saw that the city gate was broken, several Jin generals rushed to the rope gate to include the winch here, the first Jin general with a mace has rushed to the front, he raised the stick to kill the Liao soldier with a stick, the winch has begun to turn, the chain slipped, and the boulder of the jack gate flew down.

This gold general is extremely fierce, can't see it, rushed into the winch approach, and struggled to stuff the mace in his hand into the winch, this mace is made of solid iron, after a few "clicks", the falling momentum of the boulder suddenly stopped, stopped at four or five feet above the ground, this collection is very powerful, and the very thick iron cable and iron ring have broken a few.

The mace's golden general was too close to the winch, and the two winches clamped his arms and squeezed the golden general into the winch, and half of his body became a cake, and the golden soldiers shouted and held their shields above their heads, resisting the rain of arrows from the city, and ran through the urn city.

Wan Yan Liang was overjoyed when he saw that the city gate had been breached, and he drew his sword and shouted, "Rush!" He jumped off the platform and followed the tide of golden soldiers towards the city gates.

Breaking through the city gate and entering the enemy's urn city, the Jin soldiers have never broken the city once in history, and since there is a city attack and defense war, such a situation is almost unprecedented, the urn city of Yunnei Prefecture is only more than 100 steps long, and this more than 100 steps has become an eternal nightmare for the Jurchens.

The rain of arrows at the head of the city was very dense, the stone and tree trunks fell one after another, and many golden soldiers fell, but more golden soldiers stepped on the corpses, holding their shields high, and at the end of the road in the city seemed to be only a few people hugging two wooden shelves, as if they wanted to stop the powerful golden soldiers with these two broken logs.

Song Qian still hid his six-fingered right hand in his sleeve, calmly looking at the Jin soldiers who poured into the urn city and getting closer and closer, it has been some time since he arrived, his childhood neighbor and friend Xie Wanli took him to visit the defense of Yunnei Prefecture City, as a master of city defense, Song Qian was even a little disappointed.

He was disappointed that this Yunnei Prefecture City was too strong, well prepared, and had a defender like Xie Wanli, Jin Bing was afraid that it would be difficult to break through this Yunnei Prefecture Capital City, so his Ten Thousand Crossbow Wheel would not be used, and of course there would be no way to test its performance.

It's just that the Jin soldiers suddenly have the most advanced and powerful siege weapons in the world, and the Jin soldiers are not afraid of death regardless of casualties, the city gate is actually broken, and they haven't even put down the rope pass.

The most famous of the Song family in Kaifeng, Bianliang is skillful, can make the most powerful weapons in the world, can also make the most delicious fish soup, and there is also an almost perverted obsession with technology that ordinary people do not have.

Song Qian's main concern now is not his own safety, nor the justice of the war and the purpose of his coming here to defend the city, what he cares about is the performance of these two 10,000 crossbow wheels? What are the areas that need to be improved, and how effective is the actual battle?

The Jin soldiers raised their shields and rushed into this narrow urn city, the front chest door was wide open, in Song Qian's view, this is no different from the pigs, cows, horses and sheep to be slaughtered, they are all experiments, and the urn city of Yunnei Prefecture is the slaughterhouse.

The 10,000 crossbow wheel is ready, really ready.