Yuan Xuan naturally knew what the news in Xu Yunqing's mouth meant, and the faces of the two of them were not very good-looking.

If Xu Yunjin hadn't stumbled upon those people, I'm afraid that the thirteen disaster-stricken state capitals in the north would have been in chaos a long time ago.

"He Xiang is very cautious, we have been investigating for several years and have not found out where he hid his private soldiers."

Xu Yunqing said and smiled, almost three years have passed since the grain tax case, and He Chong has not shown a single tail, which shows how calm he is.

But compared to forbearance, they are still young, and they can endure much longer than He Chong's old guy.

But an ambitious person would not allow himself to return to the West after only a few years as emperor, so in fact, there is not much time left for them to arrange.

"There is no impermeable wall in the world, and if there is, it is that the wind is not strong enough."

Yuan Xuan said calmly, Xu Yunqing agreed, no matter how deep the fox's tail was hidden, but when the fire burned his eyebrows, the tail had to come out to help.

It's just that before the tail is exposed, they can't be less prepared.

Several people rushed for several days, and finally arrived at the place where Yuan Xuan's men settled when it was dark on the fifth day.

It was the inn where Xu Yunjin and the others stayed for less than half a day before, and after Nanyun County took it back, there were still many locals who slowly moved back.

But those who are a little poorer are still on the sidelines, and when the news of the recovery of Hanshanguan reaches all over the country, there should be locals who will slowly return to their hometowns.

After a few people cleaned up a little, they all gathered in Yuan Xuan's room.

"Where's the stuff?"

As soon as he entered the room, Xu Yunjin couldn't wait to ask, and the two subordinates hurriedly dispersed to reveal a basket of black things behind him.

"Yes, yes, that's it, where did you find it?"

As soon as Xu Yunjin saw this thing, he knew that he had really found a coal mine, and he was happy for a while, and his little hand directly reached into the basket and took out a fist-sized piece of coal.

The crowd who didn't have time to stop...

Without waiting for the two subordinates to reply, Xu Yunjin asked Xiao Wu to pull the brazier on the side, took out a few smaller pieces of coal from the basket and put them directly in the charcoal basin.

Several people couldn't help but hold their foreheads when they saw her vulgar movements, is this really okay?

Han Shaozhi couldn't hold back things, so he asked directly:

"Can this really burn?"

"Sure, trust me." Xu Yunjin swore to everyone.

Although the rest of the people didn't believe that this black stone could burn like fire, they subconsciously felt that Xu Yunjin would not do something that they were not sure of.

So a few people stared at the brazier and waited, and after waiting for a while, a few people felt that the fire in the charcoal pot seemed to be bigger.

"Little Five, give me a pair of tongs and bring a basin."

Xu Yunjin called Xiao Wu, who was also staring at the brazier intently, and ordered, Xiao Wu hurriedly went to the back kitchen of the inn and took what Xu Yunjin wanted.

By the time he returned, the fire in the wooden tub in the room was already so strong that he could even clearly feel that the room was getting warmer.

Xiao Wu placed the empty basin in the position designated by Xu Yunjin, and handed her the tongs.

When Xu Yunjin picked up the red-hot coal with fire tongs, everyone's eyes widened.

"This thing can really burn."

When everyone saw the burning coal in the brazier alone, they all looked incredulous.

"Hmph, of course."

Xu Yunjin's face was dumbfounded, but Yuan Xuan and Xu Yunqing were a little worried that if this matter was spread, they didn't know how people would guess Xu Yunjin.

For example, guess why she knew about the existence and role of coal, and why she knew the approximate location of the coal mine so accurately.

Although this coal mine is different from gold, silver, salt and iron, in the eyes of the powerful, as long as it is minerals, as long as they can make money, they will do everything to find and mine.

However, Xu Yunjin had already found a reason, which seemed unreasonable

The reason is still made up by Xiao Yigang.

"How do you guess I knew this stone could be used as firewood?"

Yuan Xuan and Xu Yunqing were thinking about how to bury this matter, but Xu Yunjin took the initiative to mention it.

"Say it quickly." Faced with a few pairs of big eyes eager to learn, Xu Yunjin made up a white lie.

"Hehe, brother, do you remember when we fled the famine, we stopped here to rest.

My sister and I had seen this very strange stone when we were wandering around the neighborhood, and you know that I have always loved this strange thing.

So I brought it back, but I accidentally dropped a piece in the fire, and I didn't care about it at the time, and after a while I found that the stone was actually red and hot.

I had forgotten about it, and if I hadn't come here to help the disaster, I wouldn't have remembered, so I just tried to let them find it.

I didn't expect to find it, I thought I was wrong."

In the end, Xu Yunjin pretended to be embarrassed and touched his nose, and then glanced at everyone's expressions.

What Xu Yunjin didn't expect was that the first person to approve of her clumsy lie would be Yuan Xuan.

"I'll just say that my sister is blessed, no matter what she does, she will end up being crooked."

Yuan Xuan smiled and took Xu Yunjin's words, and Han Shaozhi, who had a slow brain, also nodded, feeling that what Yuan Xuan said was good.

Yuan Xuan knew that what Xu Yunjin said was not true, but all he could do was to believe in his junior sister, as long as he believed it.

The people under him will not spread it randomly, and others will not spread Xu Yunjin in this matter.

"No wonder you washed your hands with a lot of water when you came back that day, and you were nagged by your mother, so that's the case."

Xu Yunqing also said with a look of sudden realization, Xu Yunjin couldn't help but give the two of them a thumbs up in his heart.

At this point, everyone believed what Xu Yunjin said, and Pei Ran was skeptical.

But Xu Yunjin is the person she desperately wants to protect, and she will not take the initiative to dig up any secrets of the Xu family.

"Did you find it around there?"

Seeing that everyone believed it, Xu Yunjin breathed a sigh of relief, and then looked at Yuan Xuan's two subordinates on the side.

"Lord Yu, I found it on the flat ground under the mountain you mentioned, and it was covered with snow before, and we thought that the stone would be on the high mountain.

So we climbed several mountains around us to see, just when we thought we couldn't find them.

The snow on the ground had melted away, and it was only then that we found the stone in the open air, two feet underground.

The subordinates took a look, that place is not small, we didn't dare to alarm people, so we brought this point back."

Xu Yunjin was overjoyed when he heard this, hearing that this meant that the open-pit coal mine is much easier to mine than the underground coal mine. c

Underground coal mining is difficult and dangerous, although Daqi's mining technology is already perfect.

But for the unknown, both the court and the people are afraid.

"Let's go see tomorrow."

Xu Yunjin wanted to know how big the coal mine was, the largest open-pit coal mine in her country in her previous life.

According to experts, it can be mined for at least about 200 years, and I don't know if this is that big.

"Okay."

Yuan Xuan and Xu Yunqing glanced at each other, and they were also very interested in the coal mine.

And such a big thing is to send a letter to Qi Ren, and they have to find out the specific situation.

So the next morning, the people got on their horses and rode to the place where the coal was found.

It was only two quarters of an hour from the inn where they were staying, and in a few moments they were on the undulating flatland.

"Little One, quickly test me, how big is this place?"

As soon as Ma Xu Yunjin got out, he couldn't wait to urge Xiao Yi to scan the surrounding environment.

"Host, this coal mine has

It's a big point, I can only roughly estimate the range.

But with your population and coal needs, I guess it's okay to mine for two or three hundred years."

Xiao Yi was also happy for Xu Yunjin, the host it bound to for the first time was an ambitious adult man.

He used him to get money and power, but in the end he put it together, so when he followed the previous host.

It has never known about human feelings, and it has only been following Xu Yunjin for a few years, but it has experienced a lot of things.

In the past few years, it has also seen a lot of people's joys and sorrows, although it is a machine, but they all have their own thoughts.

It's just that the main body of the system will be controlled by humans, and if humans are gone, they will not be able to survive on their own.

So along the way, Xiao Yi has also seen a lot of sad things, so it also wants these poor people to be helped.

"Really?"

Xu Yunjin asked Xiao Yi very excitedly, and after getting Xiao Yi's definite reply again, the smile on the corner of her mouth never came down.

At this time, Yuan Xuan and the others had already squatted on the ground, and according to the instructions of several subordinates, they dug the place where the coal was exposed.

"How big is this land?"

Yuan Xuan looked at the black thing in his hand and asked, Xu Yunjin on the side said with an affirmative face:

"It must be huge!"

The monitoring range of the small one is not wide, but it can check the geological conditions, and there is a lot of land around here.

"It can't all be this black stone, right? That doesn't seem like much, does it?"

Han Shaozhi frowned and said, only 10,000 acres of coal is not enough to use.

"I estimate a lot, we can't estimate the depth of this thing."

Xu Yunqing didn't think that it was only on the surface, maybe it could be mined to a deep place like a gold mine.

When Xu Yunjin heard this, she gave her brother an appreciative look, and guessed well, it is true that the depth of this coal mine is more than 400 meters underground.

"Yuanbao, the county orders sent by the Yasukuni Mansion to Nanyun County and Dafang County say that the land within a radius of 100 miles will be temporarily taken over by the army.

In addition, he sent a letter to the old general, saying that the thing had been found, and that five thousand soldiers and horses were needed to come and guard it, and the rest would wait for the holy order to decide."

Yuan Xuan glanced at the endless flat land, although this coal mine is not as important as gold, silver, salt and iron mines.

But it can't fall into the hands of others, even if someone still discovers the role of coal.

"Yes, Childe."

Yuan Bao was ordered to take the token of the Yuan family to the nearest Nanyun County first, and then went to Dafang County.

The two county orders were specially selected by Qi Ren and Zhao Taishi, although they were puzzled by Yuan Xuan's arrangement.

But he was very cooperative, and sent people to fence off the large open space.