Regarding the looting of his own property in Jingzhou, Liu Yi, who is thousands of miles away, is naturally impossible to know, although the siege failed, although it is a little sad, but it is also expected, after all, it is difficult to go well in this world, summarize experience in failure, and then succeed, this is the normal law.

Although there are many people on Liu Bei's side now, in the eyes of the generals, there are now only Guan Ping and Yang Ren who can be seen.

Guan Ping is now on the march, not following Liu Bei all the way, but with a partial division to attack the cities that can be reached around, which is quite busy, but for Guan Ping, this should be regarded as a good thing.

As for Liu Bei's side, there are many generals, but there are really not many who can carry the banner in terms of ability, except for Yang Ren, Huo Jun, who entered Shu with Liu Bei at the beginning, is okay, and the rest, such as Zhang Wei and Yang Bai who were received by Hanzhong, are a little stumbling in Liu Yi's eyes.

Of course, it's not really that there is no one anymore, there are still a lot of capable people among the generals in Shuzhong, Li Yanla, Wu Yila, are all good talents, but the problem is that Liu Bei doesn't dare to use these people too much now, and even if they really surrender, but this surrender is surrender, and when they turn around, they will directly hit the old master, which is very criticized in terms of character, and Liu Zhang did not treat these people badly.

Therefore, Liu Bei only asked these people about some things in Shuzhong most of the time, and would not directly let these people attack Liu Zhang.

After Liu Yi returned to the barracks, he did not immediately gather craftsmen to put his ideas into practice, it is not difficult to make things, but this time the weight is heavier than last time, if it is done completely in accordance with the framework of the last time, let alone whether it can be pushed or not, and whether the thirty-two wheels can be supported is a problem.

Liu Yi's idea is very simple, Jing Huan or most siege equipment are afraid of fire, and the method of setting fire in these years is nothing more than to wrap some animal skins, but the problem is that the animal skin has to be wrapped in a place seven or eight zhang high and nearly ten zhang wide, so how many animal skins do you have to waste? It's not a matter of tailoring, it's a matter of materials, or disposable consumables, which is a bit too wasteful.

So Liu Yi wanted to change the animal skin to cement to try, but the cement looked like it was only smeared, but such a big thing, if it was wiped all, the weight would not be light, and it would not be easy to do it by manpower alone, and the load-bearing capacity of the wheels had to be considered.

Just after estimating, Liu Yi found that if the scale of the well is calculated, the component wheels made will not be able to support it in the first place, and it will have to be added, and it will need to be added to at least one hundred and twenty-eight wheels, which is not the key, the key is that the manpower required is also greater.

Looking at the drawings, Liu Yi fell into deep thought, this thing must be streamlined, which part does Liu Yi have to think about now? What does Liu Beijun need most now?

For a long time, Liu Yi erased part of the arrow tower, although it is the biggest advantage of Jing Huan, but Liu Bei now wants to break the city, not to suppress the enemy, and the existence of the arrow tower occupies too much weight, before it was a bamboo and wood structure, but now if it is plastered with cement, the weight is a little terrifying, in case it collapses, it can kill a vote of people if it falls, and on the battlefield, it is more likely that it will be killed by its own soldiers and horses.

In this way, it is simple, the original well, after going to the arrow tower, there is only one wall left, the ladder naturally does not need to use the swing structure, and in addition to the front needs to be fireproof, the rear is not needed, this effect is a bit like a ladder, but it is not a conflict, in order to avoid receiving the enemy, the horizontal plate is burned, and the horizontal plate used to receive the enemy must be painted with cement on both sides.

However, in terms of weight, it is still a bit heavy, but within the acceptable range, in order to accelerate the speed, each wheel involves two runners, which can not only save effort, but also accelerate the speed.

Once the drawings are designed, the next step is to get started.

Liu Yi ordered someone to modulate cement, and at the same time began to set up the frame, and then build a horizontal plate, plastered with cement, the technical difficulty is not as exquisite as the previous well structure, the overall look like the upper part of a basketball frame, but there is no basket, the front is painted with cement to prevent fire, the most technical consumption, but the roller, while saving labor, it is also the role of the auxiliary wheel, the bearing is continuous, the main wheel is broken, the auxiliary wheel can continue to support the frame forward.

"Bo Yuan, this is ......" Liu Bei looked at the new siege weapons quietly placed in the barracks, waiting to dry, and looked at Liu Yi with some confusion, from the front, it really looks like a wall, it is still very strong, of course, it is not the same thing when you look at it from the back.

"Let's call it attacking the wall!" Liu Yi actually wanted to talk about the firewall, but in the end he didn't say it, pointing to the ladders and smiling, as long as it is pushed to the bottom of the city, this row of horizontal plates can be directly connected to the city wall, and the soldiers of our army can swarm up through this ladder and directly charge to the city wall.

Liu Yi pointed to the row of painted cement places above and said with a smile, that row is a whole, once it is put down, it is equivalent to an additional landing surface with a stone length and width, and the wooden stairs behind it are also serialized together, and then it will not climb the city wall but rush up directly.

Liu Bei nodded silently, what Liu Yi did before, at least he could see that it was a well, and what he did this time gave people the feeling that it was a wall.

"Why doesn't the gentleman set up an arrow tower?" Wu Yi, who was following Liu Bei, frowned and said, if there is an arrow tower, it will be more beneficial to the siege, right?

"These pillars can't hold up, and if they're all covered with cement, they won't be able to move!" Liu Yi shook his head, if he really has the conditions, how could he not do the arrow tower, if he really does, it is not just the arrow tower to be painted with cement, in order to ensure the balance and these timbers can be supported, there must also be cement in the rear, and then it will really be pushing a section of the city wall to run, that scene, think about it is exciting.

Liu Bei nodded when he heard this, this thing is not difficult to understand, looked at Liu Yi and smiled: "When will this thing be available?" ”

"At least three days." Liu Yi thought for a while and said, it is just a layer of cement, and it does not take long to harden, but it still needs to be tested.

After Liu Bei looked at it for a moment, he nodded and smiled: "With this thing, there is no strong city in the world!" ”

Climbing the city wall directly becomes charging at the city wall, although it also occupies a disadvantage, but this disadvantage has been eliminated by this attack on the city wall, at least it is much easier than climbing the city wall.

Liu Yi estimated in his heart when he heard this, this thing can't be transported over long distances, if you really want to attack the city with this, every city has to make one, and the cost is secondary, but it can be used because the moat has been leveled by Liu Bei, and Liu Yi has long found that the moat in Shu is relatively narrow, and if you really meet that kind of big city, the moat alone will be several zhang, and before the moat is leveled, this thing can't be used.

What's more, after taking Shuzhong, the next enemy is only Cao Cao and Sun Quan, I want to attack the city, this thing is too slow, and then it will be more of a large-scale group of soldiers and horses, so this thing is estimated to be used in the future when it is about to destroy a party like now.

Liu Yi arranged for Yang Ren and Huo Jun to discuss tactics with Liu Yi and how to give full play to the power of attacking the city wall, and in the next three days, Liu Bei would still symbolically launch some attacks every day, but the battle was not too intense.

Three days later, when the same scene was staged again outside Luo County, Zhang Ren's eyes were a little solemn.

Although the catapult blew off a lot of cement skins, it was only some, and then the fire oil thrown on it did not make the siege wall burn as before, but there were blackened traces in some places, and as for the cement wall, until the fire oil burned out, there was no intention of spreading the fire.

Deng Xian, Liu Xuan, Ling Bao and others were a little dumbfounded, how can they fight this?

Zhang Ren did not panic, and ordered Ling Bao to mobilize heavy troops to gather here, preparing to entangle with the enemy, Deng Xian and Liu Bi guarded both sides to prevent Liu Bei's soldiers and horses from killing from other directions.

"Bang~"

The heavy wooden planks collapsed completely, and a lot of cement was shaken straight open, and the archers who had been prepared for a long time shot a rain of arrows at the cracked gap, but they did not see the enemy.

"Kill~"

A large number of Liu Beijun swarmed up along the wide wooden ladder, stepping on the horizontal board and rushing in, Zhang Ren hurriedly ordered people to go up, but Liu Beijun kept killing along the wooden ladder.

The sound of fighting intensified, Rao is Zhang Ren and Ling Bao desperately led the army to resist, but Liu Beijun gradually occupied this section of the city wall, and began to spread to both sides.

In the melee, Liu Bi was annihilated by the chaotic army, Ling Bao was shot on the city wall in order to protect Zhang Ren, the entire city wall turned into Shura Hell at this moment, blood stained the surrounding walls, the corpses of Shu Jun and Liu Beijun were mixed together, and it was impossible to tell which side of the corpse was.

"Righteousness is going away, and it is done. All! Deng Xian dragged the wound and killed Zhang Ren's side, as Liu Beijun occupied this section of the city wall, other places gradually became unable to resist, the cloud ladder continued to rise, more and more Liu Beijun soldiers killed up, and the city wall could not be defended.

As soon as the city wall is lost, the soldiers and horses in this county are not as many as Liu Bei's soldiers, where can they still resist the enemy.

Zhang Ren was unwilling and wanted to fight again, but was stopped by Deng Xian: "Hurry up, at least one person needs to report this situation, the power of justice is far better than mine, when it comes back. Both, continue to worry about the Lord! Otherwise, Liu Bei's army will be killed. Both, with this thing, who can stop that Liu Bei!? ”

When Zhang Ren heard this, his eyes burst into tears, he gritted his teeth and nodded, and he didn't hesitate, turned around and took his personal guards to take advantage of Liu Bei's army to enter the city yet, and went straight to Shu County from the south gate.

After all, with the help of the city wall, Ruxian County was successfully breached. The last barrier is gone, and Liu Beijun can drive straight into it and reach it directly. Under the capital.

"Congratulations, my lord!" Liu Yi looked at the gradually opening city gate, and said with a smile to Liu Bei, Luo County, the entire Guanghan County will be returned to Liu Bei. The battle of the capital depends on whether Liu Zhang can be forced to land.