After the sacrifice, life in the fortress went on as usual.

The first month of the year passed quickly, and the heavy snow that had fallen throughout the winter gradually turned into light snow, and it looked like the snow was about to stop.

The blacksmith shop expanded further, the number of apprentices increased, and the progress of armor production gradually accelerated.

Wei Ting has been staying in the armory these days almost day and night. After continuous disassembly and reassembly, he finally figured out the structure of the crossbow cart and started making it with three carpenters.

Wei Xiyin has also been busy. She had previously said that she would let Chang Ying teach martial arts, but later put it on hold due to various reasons such as climate change.

Now that the wind and snow were fading, she followed her cousins ​​to the camp for training.

Today, she was about to go out when two bricklayers came to report with blueprints.

Because it was impossible to conduct on-site surveys, the bricklayers could only deduce based on the map provided by the fort and the roads they had traveled in the past, and then fill in some details. They made revisions for several days before they dared to come and report.

"According to the girl's request, the blueprint has included all the ancestral fields outside the fort. The high wall extends from the ancestral fields to the foot of Crow Mountain, and then extends all the way north from the foot of the mountain. The entire distance on one side is about fifty miles." The two bricklayers felt a little unsure as they spoke.

The first expansion will include all the mountaintops to the north of Ling County in Crow Mountain, and a high wall will also be built on the hillside on the back of the mountain to prevent the zombies in Julu County from running into the mountain.

Wei Xiyin took the drawing and examined it carefully.

The walls were originally set to be six meters high, and she planned to build a wall around the ancestral field at the door to build houses and accommodate and rescue the people.

In order to achieve self-sufficiency, many livelihood industries need to be established, and the dock cannot accommodate too many people.

Always plan ahead to avoid being in a rush later.

After looking at it and finding no problems, Wei Xiyin said, "Let's prepare according to this blueprint first."

"yes."

After the bricklayer left, she got up and went to the camp with the blueprints.

Many houses on the ground of the fortress were crushed by the snow. The tribesmen began to walk out of the underground palace and took their servants with them to clean up the ground.

The house repair work must wait until after the beginning of spring. The weather is unpredictable, and we are afraid that if we repair the house now and there are several heavy snowfalls later, all our work will be in vain.

The temperature outside is still very low, but within the tolerable range.

In several locations in the south that had been selected earlier, Ming Jingtang was leading a group of people to dig ice cellars, striving to store a certain amount of ice before the end of winter.

It is actually not difficult to make ice, all you need is saltpeter, but there are ready-made ice cubes everywhere now, so why should she spend time making ice?

Besides, ice cellars have many uses, so digging a few more is never a bad thing.

More and more people were moving around on the ground, and from time to time they would meet fellow tribesmen and greet them along the way.

When she arrived at the southwest camp, the brothers Cheng Xiu and Cheng Qing were leading the newly recruited troops to stand at attention.

The villagers and the Wei clan members totaled more than 330 people. The remaining 180 villagers were assigned to the southwest camp, and the Wei clan members were taken over by the southeast camp.

The training of Wei Xiyin and the young men was personally undertaken by Chang Ying and Qin Shan.

The physical fitness of the newly recruited soldiers varied greatly. They stood in a lazy and disorganized manner. Perhaps because of the cold weather, some of them hunched their necks, bent their backs, and had no manners at all.

Combined with the weapons in his hands, he looked more like a street thug than a soldier.

No matter how you look at it, it seems vulgar.

Seeing the girl coming, the two brothers of the Cheng family hurried over to pay their respects.

Wei Xiyin tilted her head to look at the group of people, "What's the point of just practicing standing postures? Go and invite Master Zhang over and ask him to help train these people."

Since you have already tricked him into staying, why be polite? Just make the most of him.

The two brothers looked at each other, lowered their heads and replied, "Yes."

Wei Xiyin turned and walked towards the house at the side. As the newly recruited soldiers came to the camp, the research work on zombies was forced to stop. Chang Ying had secretly dealt with the two zombies a few days ago.

At this time, the gentlemen had not arrived yet, so she asked Chu Yu to meet her at the camp, wanting to know some data about zombie research, which was directly related to their safety after they went out.

"data?"

"The data the girl mentioned refers to the comparison between the two and the difference in strength?" Chu Yu stood up and picked up the notebook from the table.

"There's little difference between male and female zombies. What's more, some smaller zombies are more agile at night."

"We've already reached a conclusion regarding vision. The zombies' eyeballs have disappeared, their eyes completely covered by the whites, making them unable to see. Therefore, they are extremely sensitive to light. In the absence of light, the pathogens in their bodies are active. Once stimulated by light, the pathogens become dormant, causing them to move out of instinct."

Wei Xiyin took the notebook and looked through it with a frown, "So light is the key? The virus is afraid of light?"

Chu Yu replied calmly, "Yes. As for why the firelight is useless, I tend to think that the firelight in the dark night is like a drop in the ocean. In the darkness, the tiny light is not enough to play a role. Instead, it will attract the attention of the zombies who are sensitive to light."

He pointed to a place in the notebook and said, "Also, after testing, if you move normally during the day without making any noise, the zombies' hearing range is about two miles. If you move beyond two miles, they won't react to normal movements."

This concept is rather vague.

There was no decibel detection in ancient times. How loud a sound was considered to be beyond the normal range?

Wei Xiyin was not very satisfied with this result. It was too general and very disadvantageous to them.

She asked, "Sir, what do you mean by a big noise? How do you define normal movement? What if a hundred guards were running? Would that be considered a big noise or normal movement?"

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