It's hard for my elder sister. I rely on the mountains to farm and pay off my debts.

Song Zhi spent more than an hour following Doctor Zheng, carefully observing and identifying various herbs, while also understanding their pharmacology and efficacy.

Before leaving, Doctor Zheng suggested, "You have a good memory, kid."

"It's just that the herbs I know now are limited after all. You may still remember them clearly, but as time goes by, I will introduce more and more herbs, and I am afraid that you will be confused."

She thought for a moment, then said, "How about this? I'll have Hui'er teach you how to read. Every day, you'll write down the herbs you learn, along with their uses and effects."

“When you return, you must memorize them carefully and repeatedly until they are deeply engraved in your heart. Only then will they truly belong to you.”

Song Zhi hadn't expected Dr. Zheng to be so thoughtful about her. She was deeply moved. She quickly bowed deeply to Dr. Zheng and said solemnly, "Thank you, Grandpa Zheng. I will study hard and won't let you down!"

Doctor Zheng was very pleased to see this.

She waved to her granddaughter, who was spinning twine with her wife under the eaves, and instructed:

"Hui'er, prepare some paper and ink tomorrow and take Ah Zhi to draw the pictures of these herbs. Teach her a few words as well. This way, she will be able to better grasp the knowledge she learns and not just swallow it without thinking."

Zheng Hui glanced at Song Zhi, then nodded, "Grandpa, I'll take note!"

"Thank you, Sister Zheng. I will bother you again tomorrow!" Song Zhi thanked her very obediently.

Wang, who was standing by, was indeed very happy. She believed that the more the two children interacted with each other, the deeper their friendship would be in the future.

She smiled and said to Song Zhi, "Don't bother me, don't bother me. Your sister Zheng usually stays with us old couple, and you young people can talk together when you are together."

After they exchanged pleasantries for a while, Song Zhi returned home.

As soon as she entered the door, she was surrounded by her grandmother and aunt.

Wu held the spinning wheel in her hand, her eyes shining as she said, "Azhi, this wool can really be spun into thread!"

Yang was also very excited and asked, "Azhi, have you asked the merchant whether this wool yarn can be woven into cloth like linen yarn?"

It turned out that Wu had returned after looking for someone in the village. Seeing that the house was quiet, she poked her head into the house to take a look.

I saw four little guys quietly busying themselves with something.

Out of curiosity, Wu walked closer to take a look, and saw a person holding a handful of wool in his hand. As the spinning hammer turned, the handful of wool could actually be woven into thread.

She quickly squatted down and couldn't help but reach out and gently touch the freshly spun wool thread. The touch made her marvel.

"Oh, that's amazing! This wool yarn looks much finer and softer than linen yarn, and it feels so comfortable to the touch."

After saying that, she excitedly called out to her daughter-in-law in the kitchen.

When Yang heard her mother-in-law's call, she hurried over from the kitchen.

"Look, look, this is the wool yarn that Azhi mentioned!" Mrs. Wu said as she pulled her daughter-in-law to the children.

Yang was also amazed, "It's amazing! I never thought that useless wool could be spun into thread!"

As Song Zhi was not at home at the moment and there was no one to answer their questions, the two of them had no choice but to wait patiently for Song Zhi to come back.

As soon as she entered the house, the mother-in-law and daughter-in-law surrounded Song Zhi and asked her questions.

"Azhi, can the merchant named Xu tell you what to do next?" Mrs. Wu touched the soft and delicate wool in her hand with curiosity, her eyes full of anticipation.

Song Zhi shook her head. "He only told me that people on the grasslands can weave it into something to keep warm. Now that we can weave it into thread, it's only a matter of time before we can make it into clothing."

"I'll try to find some merchants from the north and ask if anyone knows how to weave it. Wouldn't this wool come in handy then?"

Wu nodded repeatedly, "I think this thing can be done. Ah Zhi, please pay more attention. I think if this thing can be made into clothes, it will definitely keep you warm!"

Song Zhi patted her little chest, telling her grandma not to worry.

After talking about the wool, Song Zhi asked about the search for people: "Grandma, how about the manpower to build the house?"

When Mrs. Wu heard this, she smiled and said, "Don't worry, it's already been done. Everyone heard that we were going to build a house, and they all wanted to help."

"I've calculated that there are about twelve people in the village who can build houses. They're all experienced builders, so they'll definitely do their job well."

"Also, the manpower needed for making the adobe bricks tomorrow has been arranged. I've hired six extra people to help, so you don't have to worry about the manpower!"

Before he finished speaking, there was a noise outside the door.

Everyone went out to check out the situation out of curiosity, only to see Song Youshan leading several delivery guys, parking trucks of bricks in the open space next door and preparing to unload the goods.

Seeing this, Wu and others rushed forward to help.

Seeing the others approaching, Song Youshan turned around and said to Song Zhi, "I've ordered 20,000 bricks today. If there aren't enough later, just order more from the kiln factory a day or two in advance."

Song Zhi nodded, "Let uncle decide everything."

Since she had entrusted the matter to her uncle, Song Zhi would not interfere. She just had to build the house according to her own wishes.