After the Natsu tribes left, the trading area was officially closed. Although there will be warriors from Yanjiao guarding the trading area and carrying out some subsequent transformations, they will no longer be opened to the public. They will close for a winter to prepare for a bigger deal in the coming year.

The sky began to snow, but unlike the harsh and stormy winter they had experienced here, this winter seemed a little normal. Perhaps, after the disaster in the world, the geographical environment changed and the weather also changed accordingly.

After experiencing two strange hot winters, this year, people on the mainland finally ushered in a normal winter.

Perhaps, there will be some warm places farther in the mountains and forests, where birds live, but people on the mainland do not yearn for it, and what they expect is just a normal winter.

After Shao Xuan arranged the transaction area, he returned to the tribe with what he had in hand and began to polish the lenses.

The transparent crystal is suitable for polishing lenses. Shao Xuan tried to make a suggested telescope. He used to do it himself when he was in another world. Now, after many years, in this world, Shao Xuan's memory is a bit blurry, but if you try it more, Shao Xuan believes that he can still make it.

The lens barrel is made of bamboo of different thicknesses, mainly divided into three parts: front barrel, middle barrel and rear barrel. However, the most troublesome thing here is to polish the lens. After all, it is made by hand and there will be many defects. If you are not careful, it will be damaged. Fortunately, Shao Xuan and others have practiced their skills in polishing stone tools for many years. Although they did not succeed in polishing them once, they tried it a few times and had a barely satisfactory result.

The polished lenses did not know the focal length, so Shao Xuan roughly used the method of focusing light to determine, and everything was done by manpower. When the objective lenses, eyepieces, and mirrors were finally polished, the front, middle and back tubes were made, Shao Xuan assembled them and obtained a simple ground telescope.

Shao Xuan tried it and could see the situation on the other side of the river. With the eyes of many totem warriors, he could also see the scene on the other side, but with the help of a telescope, he could see it more carefully.

The polished set of lenses can create ground telescopes with multiple magnifications. All that is required is to adjust the length of the center barrel accordingly.

However, if the telescope wants to play a greater role, Shao Xuan has to continue to improve, and may even try to make a large-caliber telescope in the future.

During this period, Lao Ke also showed interest in making telescopes. After he tried it with stones, he practiced polishing with opaque small pieces knocked down from crystal clusters, and finally began to try to make lenses. Shao Xuan briefly explained the general principle to him, but many Lao Ke didn't understand it, but as long as he knew how to get the best results, he could start construction.

In terms of polishing stone tools, Lao Ke is still better than Shao Xuan.

While Shao Xuan and Lao Ke were studying polishing lenses, the long-distance team came back.

The long-distance fleet did not come back before the snow, but although it was already snowing now, it was not too cold. Except for some places on the shore of the river, other places did not freeze. Occasionally, some fish with sharp teeth could be seen jumping out of the water.

The long-distance team took the mission out, in addition to trading, they also spread the matters in the Yanhe trading area so that more people can know about it, one of them.

Second, the long-distance team also inquired about some movements everywhere on the mainland, and this time, they brought back some special news.

Not long after the long journey team came back, someone came over and asked Shao Xuan to go to the mountain for a meeting.

When Shao Xuan arrived, the tower, who led the team back this time, was already sitting inside and talking to Ao and the others.

"A Xuan, just wait for you, come in quickly... What are you holding?" Wu asked.

Shao Xuan handed the test piece of monocular telescope in his hand to Wu, "I made a new gadget."

Hearing this, the tower that saw and heard along the road couldn't help looking at this side.

Wu took the monocular lens and looked around, "What's the use?"

"To look at the distance, but this is just the first test piece I tried to do. It has not been perfected yet, and there are many places that need to be improved." Shao Xuan said while teaching the witch to use the telescope.

After listening to Shao Xuan's speech, Wu became interested and didn't say that he had a meeting for the time being. He got up and walked to the window, lifted up the heavy animal skin that blocked the window, and looked out with the monocular lens.

This synagogue is located on the mountain, close to the top of the mountain. After the disaster of heaven and earth, the mountain has risen a lot again. Therefore, looking out from here, you can see the situation in the distance, the window opened by the witch, and you can see the opposite bank of the river.

"Huh?! It's really amazing!" Wu sighed.

After hearing what Wu said, the others couldn't sit still, so they wanted to come over and try it.

However, Wu put away the lens tube and raised his hand to press it down, "Don't worry, have a meeting first, and talk about the main business first." After speaking, Wu put down the animal skin curtain and walked back to sit down. Before he could sit firmly, the telescope in his hand was snatched by the old lady next to him.

However, the old lady also held the shelf and kept the witch calm and steady. She did not immediately walk to the window to look at it. She just studied the telescope and grabbed it in her hand and placed it on her legs.

The others moved their eyes away from the telescope in the old lady's hand, suppressed their curiosity, and began to talk about serious matters.

The main reason is that the tower will tell you the gains and achievements of this lineup. The long-distance team also spread the Yanhe trading area as Shao Xuan said. However, what surprised him the most this time was the matter in the desert that Shao Xuan mentioned.

Indeed, the two continents are closer due to the changes in heaven and earth, and the closest place on both sides is the desert!

This once made Shao Xuan suspect that the reason why the slave owners chose to settle in the desert back then was to wait for this day.

"This time I heard some news in some trading areas. I believe everyone still remembers the slave owners and slaves that appeared when we started the war with Wanshi?" Ta had a serious face, with a look of surprise in his eyes.

Yes, in addition to the desert overlord Yanling, there were also those defeated slave owners and slaves who were forced out of the desert by Yanling City. Those people took their slaves and wandered everywhere. After destroying ten thousand stones, Shao Xuan also heard some news about them that the slave owners had not been able to get good from the tribes.

The only people they can bully are people from small tribes. If there are conflicts between tribes, other tribes will not pay attention to it, but if the slave owners have the intention of robbing, the groups led by several major tribes in the central region will not let it go. Therefore, even if they survive by chance, the slave owners will not live well.

Now, I heard that the continents on both sides are close to each other, and those slave owners who are not doing well want to sneak back to the desert and find a way to go to another continent. Since it is not easy to live here, then go to another place and maybe you can live a better life?

With such expectations, the slave owners wandering everywhere sneaked back to the desert with their slaves. Not long after, only a few seriously injured people came out of the desert, and each of them showed horror and crazy words, as if they had been greatly frightened.

A long-distance team passing by near the desert met them and got news from them.

"Those people said that there were some monsters, human-shaped monsters in the desert!" Ta said in a deep voice.

"A human-shaped monster?" Shao Xuan was puzzled.

"Yes, the person who escaped by chance also died not long after. None of the slave owners and slaves who entered the desert came out alive. No one knew what kind of changes had happened in the desert now." The tower told the news that this time he had received.

"Have those human-shaped monsters been to places outside the desert?" Shao Xuan asked.

Tower shook his head, "I haven't heard of it."

The room became quiet and everyone was thinking about the authenticity of the news.

"Then do we need to be on guard? What if those people... monsters come out?" said Dokang.

"Maybe it was the people from Yanling who did it?" Ao guessed.

"There is this possibility. If those human-shaped monsters are true, 80% of them are related to the people in Yanling. However, the people in Yanling are mainly people on the other side of the sea, and they should not affect us in the short term." Shao Xuan said, "Instead of worrying about those, it is better to take this opportunity to change the Yanhe area!" (To be continued.)
Chapter completed!