The scorching sun shines on the ungreen loess, the military tents are connected, and the battle flags cover the sky. Except for the four hundred steps below the city, there is no clearing in the north and west of the city, and there is no difference between inside and outside the camp. There is only the battle flag of the character "Qin" and the battle flag of the character "Wei" flying in the wind.

The city has been besieged for more than half a month. During this period, an attempted attack was launched to the north and west, but it was easily repelled by the defenders. At this time, the Qin and Wei armies outside the city were building a large-scale construction - several long walls were being built four hundred steps away. These long walls were dug on the spot, and the soil was poured out and poured into the wood building, and then tamped, and the width was 1 zhang thick. There was no effect in one or two days, but four or five days later, several long walls had been built to eight or nine feet high and more than ten steps long.

"How is the Qin army?" The fastest progress was the north of the Qin army. When he heard about this, even Chen Jian couldn't help but climb the city to look around.

"I don't know either." When guarding Chengyang, the Qin army did not build such a wall, and Chen tyrant did not understand why.

"County Duke, this is like a corridor of King Han." County Magistrate Chen Bi traveled around the world when he was young and was very knowledgeable.

"The corridor?" Chen Jian was puzzled by the corridor that was promoted by the Qin people. "What is the purpose of this corridor?"

"It is to isolate the inside and outside, so that the king's actions are unknown." Chen Bi explained. "See, the two walls are only a few feet apart, and the inner middle is the Tao. People walk in it, but they cannot be seen outside the wall. This is Ningbo."

"It's reasonable." Chen Ying nodded, but he smiled again: "Don't the Qin people know that stone bullets fell from the sky? What's the use of building walls?"

"General, look." Before Chen Bi finished laughing, the right Sima Chen Bu reached out and pointed his hand in the distance. "The Qin people were covering it with citron wood."

Lu Lijing is getting better and better, and he sees farther and clearer. In the round vision, a group of ministers at the front of the long wall are lifting citrus several feet long onto the wall. These citrus are horizontally placed on the two walls, one by one, and they are arranged side by side.

"Not good!" Looking at the position of the long wall, Chen Jian took a deep breath.

Sweat beads also appeared on Chen Bi's forehead. He wiped his sweat for a few times and said with a forced smile: "This is because the Qin people are poor in their skills. The stone bullet weighs 400 kilograms. If you descend from the sky, you will definitely smash these citrus wood. Don't worry about it."

"I hope so." Chen Jianxin was still cold. If this kind of corridor was built under the city, Jing crossbows and catapults would no longer be able to kill the Qin people. The only hope now is that the corridor project is huge, and when the Qin people built under the city, they had already withdrawn their troops.

"Do you know who is guarding the city?" The shogunate under the Jingqian was only a little cool in the morning. Xin Wu drank a cup of Chu tea before asking.

"According to the marquis, the people guarding the city are Chen Cang." Xin Sheng replied, he was considered the vanguard of the Qin army, responsible for Pingjue and reconnaissance.

"Chen Bu? The one who guarded Chengyang last year?" Xin Wu entered Chu from Magu last year and did not pass through Chengyang.

"That's right." Xin Sheng replied. "It is reported that this person is a mediocre general."

"Yong General?" Xin Wu thought about it and nodded. "Even the Yong General, there are Jing crossbows and stone-catted weapons to help us, which prevented our army from approaching the city within 400 steps and could only build a corridor. But I don't know when this corridor will be built?"

"Reported to the general, the corridor is not a city, and it is not time-consuming." Yan Wuyi, the chief craftsman of the Shaofu and the Mo family, were also in the shogunate. "If the Jing people did not send troops to block the enemy, one thousand five hundred people would be a corridor in thirty days."

"Thirty days?" The corridor is not a city wall, it is only one meter wide and nine feet high. However, the great craftsman said that it can be completed in thirty days, but Xin Wu still didn't believe it.

"Yes." Yan Wuyi looked unquestionable. "Digging soil, transporting soil, and tamping it, more than a hundred people can build a corridor in one day. If there are 45,000 people, they may build a corridor in one day. Unfortunately, the moon is very bright these days and nights, so you cannot build a city at night."

The siege is even more civil and architectural battles. The offensive and defending generals lead the battle to bravery, while the craftsmen on both sides fight wits. Since the city guard uses Jing crossbow and a catapult machine to screen the city four hundred steps, I will build a corridor; the stone bullet falls from the sky, I will use citron wood to cover it; the stone bullet is extremely heavy, so I will add more citron wood and cover it with soil, so I can always put my troops outside the city protection.

In the following days, the corridor was built slowly, and only a few steps were made every day. This day, the construction reached 350 steps, and the bombs that had been prepared in the city suddenly attacked. The iron bombs were as violent as rain. The officials who built the walls were either dead or injured, and they scattered. The Chu soldiers on the top of the city immediately shouted to celebrate. The corridor near the sun made them anxious, and now they didn't have to worry anymore.

But in the afternoon, several huge rushers were pushed out of the Qin army camp. The turret was nearly three zhang high, about two zhang wide, about five or six zhang long, and its upper part was wedge-shaped. The turret did not rush towards the city, but pushed to the end of the long wall. After removing the citron wood that had been raised horizontally, it slowly pushed across the long wall toward the city, which was equivalent to covering the long wall.

Everyone knows the small rushing car crashing the car door, but they don’t know the huge rushing car that crosses the wall. When they push to 350 steps, the catapult begins to drop bombs. This time the iron bullet hits the ground no longer, but the wedge-shaped ceiling of the rushing car.

‘Boom, boom…’, as the wood chips flew everywhere, four hundred Chu jin iron bullets directly smashed several huge holes in the rushing car. The Chu soldiers on the top of the city shouted again, and even the guard general Chen Bei couldn't help but shouted long live.

"Reported to the master, the Jing people used iron bullets. The iron bullets were extremely heavy and unstoppable. They still needed to be solidified when they rushed over." Yan Wuyihan looked at this scene with a face, and the rushing man fell to the ground and bowed.

"Kill." Yan Wuyi said two words coldly. The left and right immediately dragged the man out, and the cry for help stopped outside the tent.

"The Jing people actually used iron bombs instead of stone bombs. They could not block iron bombs and could only build walls at night." Ye Shun expressed his opinion.

"No! It is necessary to build a car that is not broken." Yan Wuyi waved his tense right hand with no doubt, and his tone was unquestionable. The Mohist and Lu craftsmen began fighting hundreds of years ago. Jing crossbows and catapults should be made by Lu craftsmen, and the Mohist must not lose to the Lu people.

"I have already built a car with wood of three feet thick. If I build it again, I am afraid that I can only use four feet of logs." The worker next to me suggested. Four feet is already 92.4 cm. Such a thickness of wood can only use logs, and it must be a big tree that has been around for hundreds of years.

"Then build a car with four feet of logs." The iron bullets thrown in the city were endless, and the walls of the car had been smashed, revealing the frame inside. "Also, elm wood is the hardest, so elm wood should be used to build a car."

"Receive the order." The worker was a little difficult to use elm. Elm is extremely hard and difficult to process.
Chapter completed!