Zombie Crisis: Survival comes first

Of course, it was Lin Yi who helped out at that time, but later, Chen Yu also took everyone further and further until they met this community.

With this layer of reasons, Chen Yu can basically be sure that Zhang Yin will never betray him and Lin Yi in the future.

And with Zhang Yin being supported, Lin Yi will be safer in the future.

From Chen Yu's point of view, he also felt that Lin Yi's hands were used to save people. He didn't want the latter to become like him, with his hands covered in blood in order to survive.

After Zhang Yin heard what he just said, he thought for a while and said: "Indeed, going out to search for supplies is considered exercise anyway. There are a large number of zombies everywhere, and people without any ability can't bring things back. From here On the other hand, we can also use the external environment to screen out some weak survivors."

"Yes." Chen Yu replied while lightly applying it to his arm: "We are not benevolent people. There is no need to help those survivors. Unless they can bring value to the community, otherwise I have no intention of saving this and that all day long. .”

After finishing his words, Chen Yu nodded slightly again and said, "Go on, I want to know what happened to that girl at that time."

Zhang Yin hummed, stood up and said, "Wait a minute, I'll go to the backyard stove and add some wood first."

More than a minute later, Zhang Yin returned to the sofa and began to speak slowly.

"According to Wu Rui's description, she was captured by three men and taken to a farmyard. After that, she was thrown into a small room, which was not very ventilated."

"The smell inside was very bad, and the ground was very wet. She saw a light in the corner, and then crawled over and lay there. But the hole was very small, only about half the size of her little finger. The outside air could enter, but she could only I can breathe with my mouth against the wall and barely maintain my strength.”

Hearing this, Chen Yu thought of something and asked, "Are there many chains in the small room?"

"Yes." Zhang Yin nodded: "Most of the house, which is less than a few square meters, is filled with iron tools, all of which are rusty."

"Later, Wu Rui was tired of leaning against the wall in that position, and her neck couldn't bear it. She searched for useful things on the ground in the dark, and then she found a box of discarded drink boxes that had been drank from, and there happened to be a straw on it."

"And as time went on, Wu Rui began to find that there was something wrong with the house. She didn't dare to continue breathing, so she pinched her nose with her hands and bit the straw with her mouth to breathe the air outside the wall. She just lay on the ground like this, and there were even insects. She didn’t dare to move even if I climbed on her.”

Hearing this, Chen Yu frowned slightly and asked doubtfully: "You can't kill people like this, right? Think about it, since she entered the house without any trouble for a short time, those people will definitely not go in for a long time. If there is a need, I will just drag her out of the house, after all, as you said before, the ground is dirty and wet."

After finishing speaking, Zhang Yin waved his hand and continued: "I haven't finished speaking yet, just continue to listen."

"It rained heavily that night, so a lot of mud and water rushed into the house, making it even more humid. Wu Rui felt more and more weird, so she kept biting the straw and did not dare to move."

"Early the next morning, someone went in first and wanted to bring Wu Rui out, but within a few seconds of entering, he fainted and fell to the ground."

"The sound startled Wu Rui. She held her breath and looked back to check the situation, then looked at the open door. An impulse suddenly emerged in her mind, and then she ran over and closed the door again."

After hearing this, Chen Yu quickly analyzed the useful information and blurted out: "Isn't that just like this? All three men fainted inside, right?"

Zhang Yin looked at him and nodded seriously: "According to Wu Rui's description, it was really like this later. The other two people saw that their companion had not returned yet. When they opened the room, they found him lying on the ground. Then they hurried in to check, but they also followed him. Passed out."

"When all three people fainted, Wu Rui quickly held her breath and ran out. Then she took off the iron chain in the yard and let the zombies in. Then she lay on the wall and saw with her own eyes that those people were not bitten until they were bitten. I didn’t wake up even after I died, it’s so scary.”

When he finished speaking, Chen Yu also felt a little confused. If he fainted and was attacked by zombies, he would feel pain, so he should wake up.

Then he said: "But from the description, the three people were eaten alive without moving. This means that they were at least more serious. But how did they do it?"

Zhang Yin spread his hands: "It's okay if you ask me some knowledge about firearms. I really don't understand this stuff."

The two analyzed for another half an hour, but still had no clue. Then Chen Yu left. Before leaving, he asked Zhang Yin to give the girl a sheet to wear. After all, there were many men in the community, and it was not convenient to wear underwear. .

......

Two days passed in a flash. Chen Yu also took the time to ask Feng Yi and Lin Yi to understand why the three men fainted. Their answers were similar and they were completely unclear.

When Chen Yu encountered this kind of confusing thing, he really wanted to understand the reason. Without any effort, a small house and a pile of rust actually made three adults lose their ability to resist in an instant. The knowledge involved , which fascinated him.

And Lin Yi also said that rust will basically appear in humid and dark environments, and then a lot of Clostridium tetani will appear, which is very toxic.

At that time, Chen Yu was stunned for a moment because he couldn't understand it at all.

However, Lin Yi reached out and poked his head, and then changed his explanation: "You can also understand this thing as the culprit that causes tetanus. The fatality rate is extremely high, and symptoms such as difficulty in breathing will occur. Basically, it is on the rust and feces. Can be discovered.”

"And this thing has to be boiled in boiling water for several hours to kill it. If you encounter those rusty knives in the future, be sure not to accidentally hurt yourself, otherwise I can't save you in this environment." Lin Yi said seriously. he warned.

With such a description, Chen Yu wanted to understand, but how could those people faint when they were not exposed to rust? Lin Yi shrugged helplessly, saying that she didn't know very well. She was just a doctor, not an encyclopedia. The whole book.

Later, Chen Yu planned to ask Alei, but he heard that he was in the recovery period and it was best not to talk too much in the early stage and to rest more. Lin Yi suggested that he go in two days.

Finally, three days passed again, and it was very close to the Spring Festival. Chen Yu finally found the answer in his heart.

He stood guard in Alei's room and said in surprise: "Air asphyxiation? How is this possible?! We ordinary people can hold their breath for a minute or two, but those people fainted in a few seconds."

Hearing this, Alei leaned against the bedside and covered himself with a quilt and said, "Do you know what the proportion of oxygen in the air is?"

Chen Yu shook his head: "I forgot."

Seeing this, Alei chuckled. After almost a week of recuperation, his condition had improved a lot. He then explained: "I have told you before that being a killer requires covering many fields. We will learn all kinds of knowledge during training, but this thing is not like going to school. If you don’t meet the standards in the assessment, you will eat peanuts."

"So in this case, it is basically difficult to forget what we have learned. The oxygen content in the air will be 21%. If it is too low and drops to half of the value, then people will become comatose or even die. "

"And from your description, that room is very small, and there are a lot of iron chains. When they come into contact with too much humid air, and react with oxygen and water, they will rust quickly. As a result, the room will be full of iron chains. The oxygen content will drop rapidly."

"If I guessed correctly, it should have rained before the incident, otherwise the girl would have fainted the moment she entered."

"This is why, before the end of the world, people often said that when entering a closed room, you should first open the window for ventilation."

Hearing Alei's explanation, Chen Yu was stunned and said: "Damn it, brother, you are so awesome. You know this stuff so clearly, I admire you."

As soon as he finished speaking, he stretched out his thumb.