Liu Yi gave Gongsun Hannan a huge benefit.

A practical method of coal.

As a condition of exchange, he successfully obtained the ownership of the Gaogang land near Tuyi Village, and it was the kind of Yongye Field. Therefore, in addition to the 400 hectares of farmland, their Liu family also had an additional coal mine industry covering an area of ​​about 50 hectares.

Moreover, Liu Yiu also promised Gongsun Hannan that in the next few rainy days, the "Liu Family Coal Floor" will provide free coal materials for boiling water rice to villagers in several villages around Sanyuan County.

While earning a good reputation, it also made a famous name for its own coal workshop, killing two birds with one stone.

Therefore, after obtaining the land deed of the coal mine from Gongsun Hannan, Liu Yiuan led the idle tenant farmers in the manor to Tuyi Village.

In the heavy rain, a huge straw shed was built on Gaogang, covering some oil paper canvas, and began to dig coal in it shovel at a time.

After digging, every time the carriage sent from the yamen would be pulled away and distributed to users who were in short supply of dry firewood. Hundreds of kilograms of coal would be taken away in vain every day.

Liu Yiu didn't feel sorry for this at all. Only with giving up can you gain. This is like when selling snacks on the street, letting customers taste a few free bites in advance. If you can't bear to get a little bite, how can you attract others to buy your stuff?

Not only those in the yamen, but also for all the big households in Sanyuan, Liu Yiu, almost sent a truck to him. Of course, while delivering coal, there will also be a copy of the coal usage method specially printed by the county. Officials have proved that the persuasiveness is not ordinary.

In just one day, nearly one-third of the households in Sanyuan County used coal to eat, and the word "Liu Family Coal Floor" gradually came into their hearts. Unconsciously, a coal mine brand was established.

"When the rainy season comes after, the minerals make a profit, we will recruit a group of people, sign a contract, and pay monthly wages. These tenants cannot stay here forever." Liu Yiuan stood by the straw shed, watching his tenants carry the coal mines one by one, and said softly to Liu Wuchen, who was beside him: "We can give priority to the villagers of Tuyi Village, and have time to communicate with Nahong Village."

"Yes, young master!" Liu Wuchen bent over and responded lightly. He had gained a lot of knowledge after following Liu Yip in the past two days, and at the same time he also realized the true value of the coal mine bought by their young master.

This is a mountain of gold.

It is simple, convenient, and flammable. Liu Wuchen can almost imagine that it is the scene where all households in the Tang Dynasty used this black stone.

The young master is a genius.

Not anyone can think of the previous farm tools, marketing methods, and current carboniferous fuel. Liu Wuchen looked up at their young master and kept secretly glad that he had made the correct decision at the time. It was Liu Wuchen's honor to be the steward of the Liu Mansion.

"Well, okay, let's go back. There is nothing we have to do here anymore." Liu Yi patted Liu Wuchen's shoulder lightly, put on the raincoat with a smile, and walked out first. He was really tired after running in the rain for two consecutive days.

When he got home, he learned that Feng Xiaoyi had already led his men back, and as well as Li Ji and the two guards left before, Liu Yi nodded gently. The hidden dangers on Hou Junji would not happen in the short term. It doesn't matter if they left. Moreover, it is not appropriate to always let a team of guards protecting the queen stay at their home.

Back in his room and took off the straw raincoat on his body, Zhang Chuchu hurriedly took out a set of clean underwear to change into Liu Yi, and went to the kitchen to bring a bowl of hot ginger soup to remove the cold.

Holding a dry towel, Zhang Chuchu carefully wiped Liu Yi's forehead. The rain on his hair said softly with some heartache: "It's raining outside and it's cold. My husband is soaking in the rain all day long. I must have suffered a lot, right?"

"Haha, how serious is the wife as my wife said," Liu Yi put down the soup bowl in her hand, and chuckled and said to her wife: "For husband and Wuchen have not been in the rain for a long time, so there is nothing serious. Don't worry, lady."

As he said that, Liu Yi grabbed Zhang Chuchu's little hand and gently helped her sit down. Looking at Zhang Chuchu's bigger belly, he whispered: "It's just that I should pay more attention. It's a slippery road. If there is no need, don't go out again. I will teach Xiaohui to study in the future. Let the little girl come over to our room."

"I am not as delicate as I am. Husband, you are too worried," Zhang Chuchu glanced at Liu Yiyi, and saw that his husband cared about him so much, so he smiled sweetly.

"Young Master, Young Master Helan is here." From afar, through the hazy rain in front of the window, Xiao Xi saw Gongsun Helan walking towards the courtyard with an umbrella, and then spoke to Liu Yi.

"Oh?" Liu Yi glanced outward and chuckled softly, "Don't worry about him, he will come in later. Xiao Xi will prepare a bowl of cups for him."

It was really true that Xiaoxi had not left yet, Gongsun Helan pushed the door and stepped in.

"Brother, sister-in-law, I have polite here." He bowed his hands to Liu Yi and his wife casually, and Gongsun Helan sat down on Liu Yi's head.

"Uncle is polite," Zhang Chuchu nodded slightly, gave a tribute, and looked at Gongsun Helan with a smile in his eyes.

After Xiao Xiduan brought tea, Liu Yi looked at Gongsun Helan and said softly: "My dear brother is here, but should he say goodbye to me?"

"Uh, brother, hehe," Gongsun Helan shook the folding fan in his hand, chuckled and said to Liu Yi: "I originally wanted to leave when Feng Xiaoyi and the others were about to leave in the morning. I stayed here for four days, and I should go back and take a look, otherwise the old man at home would have a big temper again."

"I knew you wouldn't be here for a long time," Liu Yi nodded with a chuckling, looking at Gongsun Helan and said, "After going back, I will say hello to Uncle Gongsun and Uncle Gongsun on my behalf. Our two families are not far away, so we often come and go around when we have time."

"Is this what you mean by carbonite?" In the Tai Chi Hall, Li Shimin walked lightly to Gongsun Hannan, looked at the coal that Gongsun Hannan brought with him, and asked Gongsun Hannan softly.

"Yes, the emperor, the carbonite thing has been found since ancient times, and it is also very rich in my Tang Dynasty. However, there has never been an appropriate application method and is not widely used by the world. It is still buried among the mountains." Gongsun Hannan took out a piece of tissue paper from his arms, bent over and handed it to Li Shimin, and said, "I have a place here, which can easily ignite this carbonite for daily needs. Please check it out."

Giving this method to the emperor is a great benefit of Liu Yi giving it to Gongsun Hannan. However, it is obvious that Gongsun Hannan does not have the intention to make a contribution. While passing the method to Li Shimin, he also told Li Shimin its source: "This method is what Mr. Liu Yi Liu thought, and it has been tried in Sanyuan, and it is not wrong. It is raining and it is difficult to continue drying firewood. With this kind of carbonite, the previous epidemic prevention method can be guaranteed to be worry-free."

"Oh? Is it Liu Yi again?" Li Shimin took the paper and glanced at Gongsun Hannan. He remembered that the last epidemic prevention recipe was also handed over by him. Judging from his appearance, he really had a bit of worrying about the country and the people.

Li Shimin swept the paper with a glance, but did not see anything strange. He handed the paper to Li Ran on the side and asked him to make the carbohydrate brought by Gongsun Hannan and water into a short cylindrical shape as described on the paper. Then he roughly inserted several small holes evenly with a wooden stick and placed them on the fire.

"It's here! Your Majesty, it's really here!" Seeing the honeycomb coal roasting on the fire for a while, a fiery red flame emerged. Li Ran reported to Li Shimin in a sharp voice that the burning stones seemed to him to be extremely magical.

"Yes, it's really happening," compared to Li Ran's excitement, Li Shimin acted much calmer. He had known that this kind of carbonite could be ignited, but he didn't expect it to be ignited so violently.

That Liu Yi is really a talent.

Unfortunately, such talents are unwilling to contribute to the court. Li Shimin sighed lightly. With this method, it can indeed solve the urgent problem. Not only that, whether it is daily life or marching or fighting, it will be much more convenient with this kind of carbonite.

"Gongsun Qing, I don't know where you got this charcoal?" Li Shimin looked at the burned charcoal ball and asked softly at Gongsun Hannan on the side.

"Back to the emperor," Gongsun Hannan looked up carefully at Li Shimin and said, "These are all obtained from the 'Liu Coal Floor'. The 'Liu Coal Floor' was opened by Mr. Liu, who called this kind of charcoal "coal"."

"'Liu Family Coal Floor'?" Li Shimin's brows frowned. No wonder that boy Liu Yi was so enthusiastic this time. After a long time of trouble, it turned out that he was waiting for me here?
Chapter completed!