Desperate Night

Ding, ding, ding.

The knocking sounds that continued to spread in the camp added a touch of popularity to the entire silent forest.

These days, it seems that the high-risk black disaster has been repelled, and the red value concentration of the surrounding air environment has also dropped a little. There are fewer ghost shadows, and it seems that the red value concentration cannot support the revival of so many black disasters in one breath.

Peace and tranquility fell on the Black Wind Camp.

Yu Hong followed the edge of his cave and dug out large square stones with a length and width of more than one meter along the mountain wall in the direction away.

These stones are about 15 centimeters thick, not very regular and uniform, and weigh about half a ton.

But in front of Yu Hong, they are just like ordinary small stones. He grabbed them with one hand, one on each side, and stacked them all in the center of the camp.

In order to avoid the underground formation structure, Lao Zhou and Lao Li had cooperated in advance to dig the foundation to reveal the Black Wind Formation below.

At this time, the two were squatting on the edge of the foundation pit, observing the Black Wind Formation structure buried underground.

Some silver-gray networks like plant roots were exposed in the black soil pit.

These networks spread throughout the pit, sparse in some places and dense in others, as if they were really grown naturally. But the linear structure of the network is made of materials similar to metal or rock, and it is obviously a man-made product.

After seeing the array base of the black wind protection array, the two had been squatting here to discuss for a while.

This kind of man-made product aroused their great interest.

Seeing Yu Hong coming, the two stood up.

"Boss, there is almost enough stone fortress stone." Li Runshan pointed to a large area of ​​hundreds of square rocks piled on one side.

"Next, we need to grind and level the stones, and we need adhesives, such as cement seam glue."

"I can't do anything about adhesives." Yu Hong shook his head.

"Then just use the dry masonry method." Lao Li nodded, "The next project will be larger, but the dry masonry method cannot build a large stone fortress."

"It's okay, we will improve it slowly later." Yu Hong nodded.

After getting the confirmation, Li Runshan took Lao Zhou with him, and the two began to measure the data with tools.

Yu Hong didn't know how to do these technical things, so he stood farther away. He looked at the outer courtyard in the distance, where Dr. Xu was playing on the swing with Nana.

A few days ago, at the request of his daughter, Lao Li built a wooden frame in the yard, and then hung two ropes and tied the wooden boards to make a super simple swing.

It took no more than twenty minutes in total.

This guy's manual work is really good. He works so quickly even with injuries.

Ahem

Suddenly, a slight cough came.

It was Dr. Xu.

Yu Hong frowned and looked at Xu Ruoying who was pushing Aisina on the swing.

Her face was a little pale, and she covered her mouth with one hand and kept coughing.

"The weather is getting colder and colder. We must add more warming equipment, otherwise it will be troublesome if we get sick from the cold." Ding Shao approached and whispered.

She buried Yao Feiling under the largest and thickest old tree on the outskirts of the secondary safety zone. Then she carved her name on the trunk as a tombstone.

After a few days of recovery, she can now slowly walk around the camp's outer courtyard.

But because she is not a formal member, she can only live in the wooden shed.

Warmth equipment

Yu Hong actually has a preliminary arrangement.

He did not speak, but looked at the entire camp's inner courtyard.

'The water from the cooling of the nuclear power plant can be completely recycled, and the heat can be surrounded by the camp to form a warm and constant temperature structure. However, the heat dissipation will eventually cause other black disasters. Once the stone fort is initially built, the insulation layer is applied, and the hidden symbols are well made, it is estimated that there will be no problem. '

Hearing Dr. Xu's cough, he turned his eyes and looked at the No. 2 small cave on the other side of the breeding house.

'You can first introduce the cooling water into the No. 2 cave to ensure the temperature of the breeding box. Then bury it directly from the ground into the inner courtyard of the camp to ensure a basic temperature first. '

Mushrooms, cockroaches and lizards all need temperature guarantees. If it is too cold, the production will drop sharply.

After all, cockroaches and lizards are not self-heating and constant temperature creatures.

Yu Hong planned to do so. He had strengthened the radiation grenades in the past few days, and Black Seal could start a new strengthening task.

After deciding on his idea, he looked at Ding Shao.

"How long will it take for you to recover?"

"The medicine here is quite effective. It will be fine in about a week." Ding Shao said honestly.

Yu Hong glanced at her abdomen with a little surprise. He kicked her hard.

She only needed to rest for a few weeks to recover. Obviously, he once again confirmed that Ding Shao was a very good type among the enhanced people.

"Okay, I'll prepare something for you then." He said in a deep voice.

The appearance of the little stutterer is easy to recognize, and there is no problem with that. The main thing is that we can't be sure where she is now.

"Okay." Ding Shao nodded. She also knew that she could stay in this camp for so long unconditionally. It was already a buffer time given by Yu Hong to recuperate.

If she dragged on, she might really be kicked out.

After arranging the task, Yu Hong returned to the cave and closed the door.

He pressed one hand on the wall and closed his eyes.

‘Reinforce the cave safe house, and strengthen the drainage outlet of the nuclear power generator cooling water pipe into a mesh root structure in the direction of.’ Yu Hong simulated in his mind that the cooling water pipe was bent, forked, and thinned into thinner water pipes.

The water pipes went deeper and covered the cave walls, and also covered the other No. 2 breeding house cave next to it and the open space underground in the inner courtyard outside.

‘Do you want to strengthen the cave safe house?’ Hei Yin’s question came as expected.

The black line flew out, and soon a dark red countdown appeared on the wall.

‘16:42.’

The time is okay.

“Yes.”

After confirming the start of the countdown, Yu Hong entered the state of practicing the Thunder Leg.

Cough cough cough.

There was another cough in the yard outside, but this time it was not Dr. Xu, but Lao Zhou.

Yu Hong frowned, feeling a little urgent.

He glanced at the detector beside him, which showed the temperature: 3 degrees.

‘Wait until the temperature comes up, it should be fine.’ He thought to himself.

Time passed slowly, and early the next morning.

The moment when Hei Yin’s strengthening ended.

More than ten centimeters underground in the entire inner courtyard camp, the soil suddenly blurred for a moment. The next moment, some neat black thin water pipes appeared.

One by one, the water pipes, only as thick as a little finger, were evenly laid underground in the inner courtyard.

The cooling hot water from the nuclear power plant began to flow out along the new pipes, dissipating a lot of heat into the cave and the inner courtyard camp.

Slowly, the temperature began to rise slightly.

Yu Hong walked to the door and looked outside through the viewing window.

After a while, Lao Li and the people who were working on the construction were the first to feel the warmth. Li Runshan's eyes lit up, as if he thought of something, and hurried over.

"Boss? It seems to be warmer outside?" He looked with a hint of speculation.

"Well, I did it. I used engineering robots to work underground and laid some cooling water pipes to dissipate the heat of the nuclear power motor to keep everyone warm." Yu Hong nodded and replied.

"Engineering robots!?" Lao Li's eyes lit up. "Then can it be..."

"No, there is a degree of wear and tear. If we can do it ourselves, we should try to do it ourselves. Otherwise, after the wear and tear, the robot is gone, and it will be uncomfortable when we need it in the future." Yu Hong made up a reason casually.

"Okay." Lao Li felt that it was really wise to follow Yu Hong. Listen, engineering robots!

Too high-end!

He had only heard of this kind of high-tech stuff in the news from the Silver Tower in his life.

Lao Li took this news and passed it to others, which immediately caused everyone to cheer.

The cold temperature has become a problem that everyone is quite concerned about recently.

It is so cold that everyone is less and less willing to go out for activities. They all hide in the house and rely on windbreaks and quilts to maintain body temperature.

Now it is good. The camp is slowly warming up, and there is no need to worry about getting sick from the cold. You can go out and move freely.

Such a big problem has been solved, and the follow-up should be fine.

Yu Hong thinks so, and Lao Li thinks so too.

But on the second and third days, everyone in the camp, except Yu Hong himself, began to cough.

"Something is wrong!"

Yu Hong had just condensed the sixth internal energy, and he didn't have time to be happy, and he was frowned by the coughs that came one after another.

He left the cave and walked on the ground in the inner courtyard, feeling that the temperature of the camp was obviously higher.

"Boss."

Li Runshan and Zhou Xueguang were discussing something under the lamp post. When they saw him coming out, they hurried over.

"Boss, I'm afraid we're in trouble." Li Runshan's face was solemn. After he finished speaking, he immediately couldn't help but coughed a few times.

"Not a cold?" Yu Hong asked.

"No, it's pure pharyngitis. Doctor Xu concluded that it should be an air problem." Li Runshan replied.

"Air. Is there an air purifier in the camp?" Yu Hong asked in a deep voice. Last time, Lao Li brought back so many small appliances, and he let them divide them up by themselves, and he didn't ask.

"No, the core of that thing is to replace consumables. Without consumables, it's useless to bring a machine alone, so I didn't take it." Li Runshan regretted it a little.

"And we can't be in an isolated space now. Even if we use an air purifier, we don't know if we can isolate the source of the cough." Zhou Xueguang coughed and added.

". Lao Li, speed up the construction of the stone fort. After it's built, everyone can hide in it to filter the air. The premise is that this cough is really caused by the air." Yu Hong continued.

He suddenly felt very tired.

Originally, it was thought that this world only had the Black Disaster. As long as it kept getting stronger, it would be fine. If it could resist the Black Disaster, it would be stable. Now, there was a problem with the air.

One after another.

He suddenly wondered, in such a desperate environmental change, what would the future of human beings in this world be like.

Just like this, just to live purely, you need to do your best.

"First, we need to determine what in the air causes coughing. I'll test this." Yu Hong sighed.

"Alas," Lao Zhou sighed and said nothing more.

"After Doctor Xu used a breathing valve and filtered the breath, the cough was significantly reduced, so she determined that there was some floating matter in the air that caused us to cough." Li Runshan said.

"Then use the breathing valve, and I'll check the others. After confirming, we will speed up the construction of the stone fortress together." Yu Hong nodded.