With a warehouse full of supplies, I stood alone as king in this chaotic world, gun in hand.

"Brother, are you alright?" Nangong Wu looked him up and down.

"It seems you've already gone back! I'm fine, don't worry," Nangong Xiao said, opening his arms for her to see.

"Our wooden houses were blown up. What happened?" Nangong Wu looked around. "And what about Qiao Xiangqing?"

That person can't get hurt either.

"We're all fine. Miss Qiao is in charge of distributing food to the disaster victims. Don't worry, let me tell you something." Nangong Xiao pulled her to sit down.

"Princess, let me tell you the story!" Ji Hongfei spoke first, recounting what had happened:

"Just yesterday, we spotted a few people loitering around the government office, acting suspiciously. In order to catch them all in one fell swoop, we kept a close watch without alerting them."

As expected, they made their move at night. They first released poison gas and sleeping gas around the area, intending to kill our night guards. After they thought they had succeeded, each of them carried a large bag and approached the wooden house. The bags contained explosives.

There were six people in total. Just as they approached the cabin, we surrounded them. But those fools thought the prince and the crown prince were sleeping inside, so they detonated the explosives on their bodies, intending to kill everyone inside. The cabin collapsed as a result.

"There are explosives. It seems to be the remnants of Changyang Temple and Beichen Zhan's men who did it." Nangong Wu's eyes were icy.

Ji Hongfei continued, "Princess, we have just discussed this and decided to build some more wooden houses outside the North Gate, for our own people only. No unauthorized people will be allowed to approach, which will greatly reduce the danger."

"Don't use wood to build it; it's too troublesome and a waste of time." Nangong Wu pointed forward and instructed Ji Hongfei:

"Go and bring that bulldozer over here, to the spot you just mentioned, and level it out."

She has movable houses in her space; she can take them out, install them, and live in them.

"Okay! Coming right away." Ji Hongfei immediately ran over and got on the bulldozer.

"How's the foundation digging going?" Nangong Wu looked at the construction site. In addition to excavators digging the ground, there were also many soldiers digging manually.

"Dig according to the soil conditions, between four and eight or nine feet," Nangong Xiao said.

"Sister Wang, the foundation of this inner wall is only four and a half feet wide, but it needs to be built to a height of thirty-six feet. Is that feasible?" Nangong Hong looked at the map on the table with some doubt.

Regardless of the country, the palace walls of any royal palace must be at least 25 zhang wide and have a trapezoidal cross-section that is wider at the bottom and narrower at the top. This is necessary to withstand the impact of the wooden battering ram and to prevent the excavation of tunnels.

The imperial city planned by Nangong Wu had a foundation only four and a half feet wide, but its walls were thirty-six feet high, higher than all the palace walls, and they were vertical. It seemed a bit unreliable.

"Okay." Nangong Wu knew their doubts and explained to them:

"Traditional palace walls are constructed using a rammed earth and brick cladding structure, which is too time-consuming and laborious. If we continue to build them according to the old tradition, it may take five years to complete them."

Therefore, the palace wall we built this time was not constructed using the old traditional methods; it was entirely made of reinforced concrete. Although it is only four and a half feet wide, it is absolutely sturdy.

She originally only intended to build the palace wall one meter wide, but considering that Runan City is located in a low-lying area, in order to prevent flooding into the city like this time, she added half a meter to the width.

The reinforced concrete wall, which is one and a half meters wide, is really sturdy. Not to mention that the wooden battering rams here can't knock it down, even in the world of my previous life, it would take a missile weighing more than 500 kilograms to blow it up.

"Using reinforced concrete to build the palace walls?"

The eyes of the people present lit up when they heard this.

They thought of the reinforced concrete blocks used when the river was dammed a while ago.

"Sister, the inner and outer walls together cover more than sixty li. Can they really be built entirely with reinforced concrete?" Nangong Xiao asked uncertainly.

He had seen those steel bars; their hardness was dozens of times, or even more, than that of iron. If reinforced concrete could be used to build city walls, they would be far stronger than traditional city walls.

"Yes, we will not only use reinforced concrete to build palace walls and city walls, but also to build all houses, making them sturdy and fireproof."

"After the New Year, when Li Feng returns with his army, we will build a cement plant and a steel bar plant so that our 300,000 troops will have something to do and can support themselves with their own hands," Nangong Wu said.

She has the equipment and the technology, and Eileen and Aiqi are her technical advisors.

"That's wonderful!" Nangong Hong's eyes sparkled with anticipation for the future.

The future blueprint described by Nangong Wu was so exciting that he could already picture a prosperous and peaceful future.

He must live well, enjoy his future happiness, and wait to see those who forced his mother to her death and tried to kill him suffer the consequences and get what they deserve.

"I'll do whatever my sister says." Nangong Xiao was also very excited. He took her hand and started walking forward. "Let's go take a look! If it's not working, we can dig a little deeper."

"it is good."

The group walked towards the construction site.

When Li Zhan, Li Hu, and the other Flying Feather Guards saw them operating the excavator, they all waved and greeted them.

Nangong Wu waved to them and smiled.

Cao Bin, who was also digging with his soldiers, rode over when he saw them, dismounted, and bowed, saying, "Your Highness, Princess!"

"You've all worked hard!" Nangong Wu raised her hand. "Starting this month, everyone who helped dig the foundation will have their monthly salary increased by half."

Digging is hard work, and they should be paid for the extra effort they put in.

Cao Bin was taken aback. "Princess, soldiers receive a monthly salary. These are things we should do."

"Since it was given by the princess, it is rightfully yours, so there is no need to refuse," Nangong Xiao said.

"Yes!" Cao Bin replied. "Then this humble general will thank the princess for her kindness on behalf of the soldiers."

"Hmm." Nangong Wu nodded and asked, "Since you're here, tell me how the digging is going on your side?"

"Your Highness, manual digging is slower. We were just sitting around doing nothing, so we came to help, hoping to dig as much as we could. A thousand people dug for two days and only managed to dig less than five miles."

"Ten excavators dug more than two miles in just two days, which is much faster than digging by hand," Cao Bin replied.

"Sister, the soil in the section of the foundation that the soldiers are digging is quite loose, so they need to dig it deeper," Nangong Xiao said.

"That's already very good!" Nangong Wu did some mental calculations. "In that case, the foundation for this inner city wall will be completed in a few more days."

"It is expected that the entire excavation will be completed in five days," Nangong Xiao said.