He was betrayed at the beginning, from a cake seller to a wealthy person

Lu Yan spent a day cooking syrup while others spent a day building the house. When Lu Yan came out of the house, the house was already half built, and she was shocked by the progress.

Lu Yan couldn't help but applaud: "You guys are so fast."

Xiao Yu had been chopping wood nearby. Hearing this, he looked up and smiled: "We are from the Northern Frontier Army. What kind of work can't we do immediately after receiving an order?"

Xiaoyu was very pretty, with skin so white that it reflected light. She didn't get tanned even after being in the sun for several days. If she got too much sun, she would just get red and peel. Xiaoyu suddenly raised her head and shook it at Lu Yan.

Lu Yan leaned over and asked, "Xiao Yu, judging from your appearance, your parents should not be ordinary people. Have you never thought about finding your biological parents in all these years?"

Xiao Yu shook his head and analyzed the reasons, which were surprisingly clear: "I have forgotten everything about my childhood, and I don't remember what my biological parents look like. But my master picked me up in the mountains. There are only two possibilities for such a young child to be abandoned in the mountains. Either my parents don't care enough about me, or they are unable to protect me. Either possibility will bring me trouble, so I won't look for them."

Lu Yan was stunned when she heard this, but after thinking about it carefully, she realized that this was indeed the case. Xiao Yu was now in the barracks, receiving military pay, and there was no war to fight. He had a master and comrades by his side, and he was free. There was really no need for him to cause trouble for himself.

Lu Yan nodded in agreement.

She took out the beet pulp from which the sugar had been squeezed and poured it into the horse's trough, and the guys rushed over to chew it. Beet pulp is an excellent feed, and when she brings back two pigs from Youzhou, she will raise them next to the laboratory and feed the remaining beet pulp to the pigs, which will fatten them up quickly.

The little rabbit came up curiously, pointed and asked Lu Yan: "What is this?"

Lu Yan explained as she fed the horse: "Beet pulp, what's left after I squeezed the sugar."

"Sugar?" the little rabbit repeated. "Did you make sugar?"

Lu Yan dragged the little rabbit back to the house, took out a jar of thin syrup she had made, and gave him a spoon for him to taste.

The little rabbit scooped a spoonful and put it into his mouth, showing a surprised look: "It's really candy!"

"How can it be fake?" Lu Yan said as she covered the syrup and put it away. "It just has impurities in it, and it tastes astringent. I have to get some activated carbon to filter it when I get home."

The little rabbit repeated, "Activated charcoal? What is that?"

"Something that can absorb impurities, mostly used for filtering." Lu Yan became interested and pulled the little rabbit to plan: "After I go back, I plan to set up a laboratory to make these things, activated carbon, high-proof alcohol. When the time comes, you can bring your disciples to keep an eye on them for me."

The little rabbit nodded in confusion: "Okay, but what are they for?"

"They are all useful and good things." Lu Yan explained one by one: "Activated carbon mainly plays a filtering role. If the function is extended, it can be used to prevent poison."

During World War I, the German army used poison gas attacks for the first time. The British and French forces used gas masks made of activated carbon to greatly reduce the number of deaths from poisoning.

"High-proof alcohol is used for disinfection. Many soldiers were wounded by swords and knives, and the wounds repeatedly became infected and feverish, eventually leading to death. You can simply understand that there is dirt in the wounds, and ordinary methods cannot remove it completely, but high-proof alcohol can kill these dirt. If you have this thing, it will be of great use to treat people's injuries in the future."

The little rabbit was excited and skeptical: "Is this true? Is there really such a good thing?"

Lu Yan nodded: "Once we make it and do an experiment, we'll know everything."

In this way, reliable free labor was attracted by painting a rosy picture.

The next day was another busy day. The cabin was almost finished, and everyone was making simple furniture, beds, etc. In the evening, the mother bear finally arrived.

When the mother bear came, it still caused a lot of noise. When the sun was about to set, everyone stopped what they were doing, some fishing, some hunting.

Liu Xiaowu was about to shoot a rabbit, but the rabbit suddenly darted into the woods and disappeared. Liu Xiaowu squinted his eyes to look for the rabbit, and then he saw the huge brown bear ten meters away.

Liu Xiaowu was so scared that he ran away, and the bear also started to run away. Liu Xiaowu ran into the camp and shouted for everyone to get ready. Xiao Yu hurriedly woke up the sleeping little bear and dragged him out.

The brown bear ran very fast and soon reached the camp. The little bear was just awakened and saw his mother.

The two bears just stood there looking at each other.

The little bear finally reacted and ran happily towards his mother, but was slapped to the ground by the mother bear.

The mother bear glanced at the alert people in the camp and turned away. The little bear got up from the ground and followed the mother bear happily, looking back at everyone from time to time.

The two bears disappeared in a short while.

Lu Yan finally relaxed after several days of holding her breath. The bear had been sent away, and the house was almost finished. They could continue their journey tomorrow at noon.