With the help of Wujia Village, the terraces on the mountain were built, and the first season of farming did not catch up, but they caught up with the second season. Now, with the help of the people of Wujia Village, the grain after the autumn harvest is filled with the warehouse on Li Xiaozhuangzi. Some of the grain Li Xiao asked Wang Wensheng to secretly transport to the underground granary.

In winter, there is little water in the river, so Li Xiao asked Wu Tian to take people to clean and expand the river, but a villager accidentally fell into a hole, on the other side of the river, not far from the river. Below it is empty, and there is a natural underground river.

Wu Tian took Li Xiao over to see the underground cave and said that it was possible to train soldiers, store grain, and store water here. Li Xiao told Wu Tian that she had never thought of rebelling and becoming emperor. Wu Tian laughed when he heard this, saying that he didn't want to rebel either.

Li Xiao consulted with Jiang Craftsman and wanted to make use of the underground river. She wanted to connect the underground river to the above-ground river, so that if there was a flood in the future, the dam could be relieved by draining the water from the ground.

Jiang Craftsman has a new idea. In their area, there have been more droughts than floods in the past, and even if they did, they could cope with the height of their rivers and the construction of their dams. But if it's a big drought and all the miles dry up, how will they survive it? There is a major drought every 100 years, and a small drought every 20 years.

Li Xiao thought about it for a few days and asked Jiang if it was possible to build an underground reservoir. Li Xiao's idea is that the underground reservoir does not occupy an area, has a large storage capacity, has less investment, has little evaporation loss, and is safe and reliable. But she couldn't say anything about evaporation, so she explained the rest to Craftsman Jiang, who felt that Li Xiao was comparable to a god, and his ideas were bold and practical.

Jiang Craftsman and his apprentices began to inspect the underground river, design the drawings, and then discuss with Li Xiao after the design, Li Xiao made some small suggestions, such as weaving some nets with fishing net lines to block the mouth of the river to prevent leaves or branches from blocking the river.

The entire underground reservoir, built of stone and natural stone walls, occupies almost half of the mountain. The places where the underground river channels are prone to collapse are also built with stones and propped up. There are stone bridges over the underground reservoirs and underground channels to make it easy for people to clear the channels. There is also a rocker arm in the reservoir, which can be hung with a bucket to draw water. Li Xiaoren made a stone pier at the outlet of the underground reservoir, and if there was a major drought, the outlet of the underground reservoir should be blocked to reduce the loss of water from the reservoir.

Sanniang returned to the Li family and has always been very stable. Later, she inadvertently learned that Wang Wensheng also lived in the Li family, so she was a little displeased. Later, when I heard that people said that the door of Li Mansion was written on Li Qing's Mansion, I was even more unhappy. She first looked for Xiulan, who said that she was illiterate and didn't know what was written on the door. Sanwang and Sixi Wufu all went to help Li Xiao manage Yamada, they were very busy, and they didn't want to listen to Sanniang say that they didn't have it. Li Xiao only went to the old lady's room for a meal in a month, and Sanniang couldn't find anyone if she wanted to find Li Xiao alone.

Until the Chinese New Year, when everyone got together, they received a letter from Dazhu and Erzhu, saying that they were fine, did not go to the battlefield, and had been training.

The old lady of the Li family looked at her tears with joy, and Xiulan and Sanniang were very excited when they knew that their husbands were still alive. Let Li Xiaoxiang write a reply. Li Xiao refused, and finally it was written by Sanwang. Xiulan was very happy to know that Sanwang could write. Sanwang wrote in the letter that everything was fine at home, and he bought land and built a big house. So that they don't have to worry about the family, he was originally going to tell his grandfather's death, but Li Xiao didn't let him tell, so he didn't write. Li Xiao was afraid that they would be sad and sad, although they were not on the battlefield, in case they were distracted by their comrades during training, it would not be wronged.

Sanniang took advantage of the New Year's joy and asked Li Xiaomen what it meant by Li Qing's mansion. Li Xiao entered the Li Mansion from the gate of the Li family in the past six months, but only one hand. Where will you pay attention to these, all the names of the plaques in the Li Mansion are born by Wang Wensheng. Li Xiao heard Sanniang talk about it, but he didn't take it seriously at all, but just asked people to hang the sign on the black oil gate.

Sanniang saw that Li Xiao was soft, thinking that Li Xiao was afraid that she would talk about this, and thought that she had mastered Li Xiao's handle. After the fifth day of the first lunar month, Sanniang found Li Xiao and said that Wang Wensheng could not live in Li's house and asked him to move out. Li Xiao looked at the corners of Sanniang's mouth slightly upturned, and said: "The second aunt is too wide, Wang Wensheng lives in my three-bedroom house, and the three-bedroom family business is my own purchase, and it seems that the second aunt does not need to take care of it." Whoever is happy with my own property will live in it. After Li Xiao finished speaking, he didn't pay attention to Sanniang.

Sanniang was angry and cried to find the old lady. The old lady finally said that she couldn't manage this, and the current family business was all purchased by the three rooms, and Li Xiao said at the beginning that the family business she bought for the Li family was separated from the family business of the third room, and the Li family put her here and handed it over to Dazhu, and the family property of the third room was placed in her own hands. The title deeds of the East Cross Courtyard are all in Li Xiao's hands. The old lady asked Sanniang to worry less about this, if she didn't want to live, Li Xiao had said before that she could give them land and let them move out to live by themselves. After Sanniang heard this, she went back to the yard and stayed honestly.

After the New Year, Jiang Jiangren and a group of people continued to build underground reservoirs and dams. The underground reservoir was only known to Jiang Craftsman and a few big disciples, as well as Wu Tian and some villagers of the Wu family. Li Xiao told everyone not to speak out. So the people down the hill didn't know about the underground reservoir at all.

Wu Tian and some people continued to build and expand the river.

Li Ren took some people to take charge of the farmland in the mountains.

Zhang Cheng led a group of people to manage the expansion of the river downstream of the old Wujia Village.

Because of the lack of manpower, Li Xiao recruited another batch of short-term workers. The money is calculated on a daily basis, and although it is very small, the villagers of Li and Zhang are happy to find short-term jobs without having to run outside. Li Xiao built a tea shop called Qing Tea Fang on the edge of the intersection of the village under the official road to entertain passing merchants. The tea shop mainly sells alcohol and meat.

All of Li Qing's industries are rising steadily, with more and more grain being produced, and water is being filled into underground reservoirs and above-ground reservoirs. Li Xiao didn't want to affect the downstream use, so the water injection has been very slow, and at this rate, Jiang Craftsman predicted that it would take three years to fill the water level they designed. Wu Tian once said that he should simply put more water, but Li Xiao vetoed it. She doesn't want to find trouble, if the water injection is too large, although it will not affect the lives of the people, it will attract the attention of the downstream people, and there may be unnecessary trouble. Li Xiao's decision, in a major drought in the future, made Li Qing's land boundary almost not hold up. Since then, Li Xiao has demanded that the underground reservoir and the above-ground reservoir be guaranteed to be at the designated water level at all times.