Go back a few months.

After Yun's exploration of the silver mine, it was found that the silver ore has a relatively high mining value and can be mined.

However, silver ore is not mined if you want to, the Dali Empire has strict control over the four minerals of gold, silver, copper and iron, ordinary people are strictly forbidden to mine privately, once found, they will be punished for the crime of treason, and the first-class nobles can mine minerals in their own fiefdoms, but in the mining of minerals to report to the empire, only after the empire has permission to mine and mine, if the first-class nobles mine minerals without the permission of the empire, they will also be punished for the crime of treason.

Yun Yuankai handed over this matter to his clan brother Yun Jie.

Yun Jie is next to the Yun family, twenty-nine years old, with an ordinary figure, a slightly handsome appearance, a calm temperament, and the most important thing is that Yun Jie is still an acquired fifth-order martial artist.

So Yun Jie was ordered to set off with the paperwork, accompanied by more than ten guards, all of whom were equipped with two horses, day and night, and it was expected that it would not take a month and a half to arrive at the imperial capital Xinping.

Tan Binh Castle was built on a plain in the middle of the Dali Empire's ruling area, where the soil was fertile and there were large tracts of fertile land, which could harvest a large amount of grain every year, which was enough to supply Tan Binh Castle.

Xinping City as the imperial capital, built on the plain, but there is no danger to defend, so Xinping City has a tall and solid city wall, there is a wide moat outside the city wall, the city wall is driven by rows of giant crossbows, the sharp arrows on the giant crossbow are slowly ready to be fired, people are frightened, deter countless people with ulterior motives, Xinping City is really indestructible, the difficulty of attacking is second only to the two major heavenly passes of the Dali Empire - Wuwei Pass and Zhangde Pass.

What is even more amazing is the population living in Tan Binh City.

In this era, the population of a county town ranged from nearly 10,000 to 20,000 or 30,000; The population of a county can range from 20,000 to 30,000 to 40,000 or 50,000. The population of a state town ranges from 50,000 to 60,000 to 90,000 or 100,000.

However, the population of Xinping City far exceeds these figures, and the total population living in Xinping City has exceeded 500,000, which is not far from 550,000.

This is Tan Binh Castle, an impregnable giant city that stands on the plains.

Less than half a month, Yun Jie and his party rushed to Xinping, although the time to arrive in Xinping was just over a moment, but Yun Jie did not immediately take the documents to the household department, Yun Jie and his party because of the long time to come, the body was full of dust, and people were also very tired.

Yun Jie, as a child of Yunhua Yun's family, naturally pays attention to his own image when he goes out, this is the practice of the children of the family, if he goes to the household department like this, even if the documents are successfully approved, Yun Jie and the Yun family will be laughed at by some people.

Yun Jie took his subordinates to find a fairly high-end inn near the household to live, took a bath to wash the dust off his body, and rested for a night, the next morning, the energetic Yun Jie changed into a gorgeous dress and left the inn with his subordinates, and walked towards the household.

Yun Jie came to the gate of the household and was about to enter the household, but was stopped by the sergeant guarding the door.

"Stop! This is an important place, and idlers are not allowed to enter! Although Yun Jie was gorgeously dressed and brought his subordinates, he looked like a person with status, but the doorkeeper of the household still said in a deep voice.

Seeing that Yun Jie was not in a hurry, he took out a metal plate from his waist that was slightly smaller than his palm and emitted a golden glow in the sun.

This metal plate is the status symbol of the magnates in the Dali Empire, called the talisman, which is divided into five grades of jade, gold, silver, copper and iron by material, the imperial family uses jade talismans, first-class nobles use gold talismans, second-class nobles, third-class nobles, and ministers above the third grade (inclusive) use silver talismans, and officials below the third grade use bronze talismans and officials below the seventh grade (inclusive) use bronze talismans, and officials below the seventh rank use iron talismans.

The front of the gold talisman that Yun Jie took out is a mighty unicorn diagram, and the back is "Yunhua Yun's" with four big characters, and next to "Yunhua Yun's", there are four slightly smaller words of "first-class viscount", and the talisman directly proves Yun Jie's identity, Yun Jie is a person of the Yunhua Yun clan of the hereditary first-class viscount.

The sergeant guarding the door did not look carefully at the talisman in Yun Jie's hand, just seeing the golden brilliance of the talisman, he knew Yun Jie's status, and all the guards at the gate bowed their heads to Yun Jie and bowed slightly and clasped their fists and saluted: "The villain has seen the adult." ”

I don't know Yun Jie's specific identity, but it is very appropriate to use the unified title of "adult" for the powerful.

Seeing the sergeants saluting, Yun Jie replied quietly: "No courtesy." ”

This scene in front of the household department also attracted the attention of others, but just glanced at it and turned their eyes, such things often happen here, it is not an uncommon thing, but it is relatively rare for golden talismans to appear.

"My lord, what is the matter with you here? The small ones can lead the way for the adults. The only one among the gatekeepers who was wearing light armor and a hip blade seemed to be the leader of the gatekeepers, and asked Yun Jie respectfully.

"Wuyun Huayun has discovered a vein and wants to mine it, so I will report it to the Ministry of Households." Yun Jie said flatly.

"My lord, this matter is in charge of Lord Cao, the Salt and Iron Division."

"Lead the way."

"Yes, sir."

The sergeant leader took Yun Jie into the household, and Yun Jie's guards stayed outside the gate, if the guards all entered the household, the household would not be overcrowded, and the guards were not qualified to enter the household.

The household department covers a large area, but as one of the important departments of the Dali Empire, there are a lot of people who come to the household department to deal with things, it is impossible for Yun Jie to see Cao Shilang for the first time, there are still many people in line in front, and he must meet Cao Shilang himself, if Yun Jie wants to meet Cao Shilang, looking at the number of people in front, I am afraid it will be difficult to see it at the end of today.

Fortunately, Yun Jie didn't need to meet Cao Shilang in person, he just needed to hand in the documents and wait for Cao Shilang to review it.

Yun Jie, led by the sergeant leader, came to a table, where a small official was sitting opposite, writing something on paper with a brush, and beside him was a stack of papers.

"Xuan Gao, this adult has something important to report to Lord Cao, please submit it to Lord Cao as soon as possible." The sergeant leader said that it seemed that he had a good relationship with this little officer.

The little official who was called Xuangao by the sergeant leader raised his head when he heard the voice, and stood up the next moment, at this time Yun Jie also spoke: "My Yunhua Yun clan has found a vein and wants to mine it, I hope Lord Cao can review it as soon as possible." ”

After Yun Jie finished speaking, the little official saluted Yun Jie slightly, and said respectfully: "My lord, please hand over the documents to the villain, and the villain will present it to Lord Cao immediately." ”

When Yun Jie heard this, he took out the paperwork, and the little official respectfully took the paperwork and gently placed it on the top of the stack of documents beside him.

Eventually, Yun Jie and the sergeant leader turned around and left.

Not long after Yun Jie left, an official wearing a three-rank official uniform walked out of the vicinity, and said in a strange tone: "Yunhua Yun's clan, hey, Yunhua Yun's clan." ”