After closing the dialog box, Su Heng clicked on Chen Yaoguo's avatar and started a private chat.

Su Heng: "Dr. Chen, are you asleep?"

Chen Yaoguo replied in seconds: "Not yet, do you have anything to do?"

Su Heng: "I have a few things for you to do."

Chen Yaoguo: "Please speak."

Su Heng explained to him one by one about refining crude oil, making gunpowder, and catalyzing flour.

Chen Yaoguo: "No problem, when do you want it?"

Su Heng: "Don't worry, just follow your normal speed and put gunpowder first."

The task that Su Heng explained seemed to be commonplace, but the amount of raw materials was huge.

Not to mention crude oil and flour, but only to the main raw material of ammunition, saltpeter.

Su Heng's several ore veins, plus the 300kg provided by the Kyushu team every week, are nearly one ton.

Over time, this amount will become larger and larger.

Looking at it this way, these things are really not to be underestimated.

Therefore, Su Heng must understand clearly about Chen Yaoguo's personality, character and way of doing things.

Su Heng: "Have a good rest tonight, I will mail the things to you tomorrow morning."

Su Heng: "Also, don't forget to upgrade your shelter. If you need any materials, you can ask me for it. Don't be embarrassed to ask."

Chen Yaoguo: "Mr. Su Heng, you are my reborn parents! I kowtow to you!"

Su Heng: "You don't need to kowtow, just do it well. I'm optimistic about you."

Chen Yaoguo: "I assure you that I will not betray your trust."

Early the next morning, Su Heng mailed things to the two of them separately, and also gave some living necessities, including silver spirit water.

In the next few days, Su Heng and Yan Wan took labor robots and worked hard to transform the electromagnetic fence.

...

【Sign in successfully】

[This is the 34th day of your existence: reward Doomsday Honor 300 points]

[Current Doomsday Honor Remaining: 4380 points]

Su Heng got up and took a shower.

In 4 days, half of the renovation and upgrading plan has been carried out.

With the foundation of the concrete wall, the speed will be faster and faster, and the entire renovation plan will be completed before the disaster strikes.

【alarm! 】

【The third disaster will come in 72 hours】

【Category of Disaster: God of Death in the Air】

[Disaster Level: Level 3]

[Reminder 1: This disaster will last for 168 hours. At that time, the world trading function of the exchange will be temporarily closed, and players can only exchange transactions with players in the same area]

[Reminder 2: The second batch of human release will be carried out after the disaster. The age of this release is 15~45 years old. Please build/upgrade/strengthen a reliable shelter for your family]

[Reminder 3: After the disaster, there will be mysterious airdrop rewards in each area. The rewards include but are not limited to: survival materials, equipment weapons, technical drawings]

[Reminder 4: The rewards contained in the airdrop box depend on the survival score of the area and the number of players. The more players with high scores, the richer the rewards.]

[Reminder 5: After the disaster is over, the system will randomly reward some players with certain materials, and the reward content depends on the survival score of the player/team]

【Good luck! 】

After the disaster announcement by the female voice of the system machine, a disaster countdown appeared on the system panel.

【Countdown to Disaster: 71:59:57】

【Good luck! 】

As soon as the system broadcast of all players came out, the entire communication channel directly exploded!

The existing large number of players are all in panic.

"I wipe, the **** of death in the sky? What kind of disaster is this?"

"I'm dizzy, how did the system start to be a riddleman? Do people have to guess?"

"A group of idiots with no culture, the **** of death in the sky is the nickname of acid rain, don't you know this?"

"Classic, there are several ways to write hui."

"Does anyone know what the intensity of level 3 acid rain is?"

"What about those prophets? Why are there no figures? Come out and explain!"

"Crap, my shelter has been destroyed. I just built it out of wood. How can it resist acid rain!"

"Family, ask weakly, can the stone safe house survive this disaster?"

"I'm a stone safe house, and I feel a little overwhelmed."

"Stone can definitely resist! Now, less than one-tenth of the people should have upgraded concrete, right? This is only the resources of large families to upgrade. We can't kill us, right?"

To a large extent, people's panic comes from the resilience of the shelters.

Safety, food, mental state and other aspects, it seems that they are not ready.

Some people can't even take care of themselves, how can they protect their families from the wind and rain?

But from another perspective, it may spur people to speed up the construction and upgrade of their shelters.

Material upgrades, construction methods, an ordinary stone shelter has already taken people's lives.

Upgrading concrete shelters requires even more resources for them.

Some people firmly believe that a stone shelter can be passed.

Some people choose to gamble.

Some people seek stability and immediately sell other resources in their hands in exchange for materials to upgrade the concrete shelter.

Yan Wan's voice came from the walkie-talkie: "The system broadcasts! Did you receive it?"

Su Heng replied with the walkie-talkie: "I received it~lightnovelpub.net~ Meet and talk."

After washing up, Su Heng and Yan Wan met for breakfast.

"My God, your news is really accurate, it's acid rain!"

Su Heng smiled, this is nothing.

Isn't the point that he accurately 'predicted' that there will be a second batch of humans being released?

"Don't you have some kind of black technology, can you know the type of disaster in advance, and predict the system's approach?"

Yan Wan's doubts are normal, if it was Su Heng, he would have the same doubts.

Su Heng just tapped his head with his fingers, with a noncommittal expression: "Guess."

"Do you have any blood relatives? Will it be put here?"

"Tell me in advance, don't be mistakenly killed by us."

Yan Wan shook her head: "I told you before that for relatives who have no blood relationship, it has nothing to do with me."

Yan Wan did tell him, but Su Heng just wanted to confirm.

If the second batch of human beings are released, the first batch of people will definitely enlighten them patiently, tell them the operating rules and periodic events of the end times, and let them accept this reality.

Not only to soothe their psychological state, but also to provide security and food.

The people who put in the second batch may be useful in an unplaced safe house, and they can choose to place them together or separately.

The initial safe house can't resist the stronger fifth round of disasters, and they have to find ways to squeeze out resources to upgrade their families.

Su Heng, Yan Wan doesn't have to worry about these issues, it saves a lot of energy.

Su Heng only needs to manage his own security base.

"What about you, what kind of relatives will you put in?" Yan Wan asked rhetorically.

"Neither do I. One person eats enough and the whole family is not hungry."

Su Heng pouted.