The dim sunset could not hide the desolate chill, and the overwhelming freezing rain fell wantonly from high in the sky.

In the row upon row of Qinggang City, the buildings that humans were once proud of are like tombstones, and the broken hollow windows make ghostly noises, as if they are crying for the past civilization.

The environment on Blue Star may be very harsh, and there may be radiation-contaminated land everywhere.

But compared with the extremely changing environment of the wasteland, it is still far behind.

It started to rain from the night of January 31st to the evening of February 1st.

In just one day, the temperature plummeted from 20 degrees above zero to five degrees below zero, and it continued to drop.

For the gophers living on the edge of the tropics, this is a disaster no less than a heavy fog.

After all, the climate was still hot and humid during the existence of the latter, which was still within an acceptable range.

But now, it's wet and cold.

On the way back to the shelter in a hurry, Somo successfully negotiated a business deal with several allies.

Use cold protection materials in exchange for some industrial products that are in short supply.

Among them, Yehu surprisingly contributed a macromolecular biological research machine, which is similar in function to a microscope, but has a wider observation range.

According to what this guy said, it's useless to stay with him, it might as well be used by the alliance.

Of course, judging from the way he was shivering with cold.

Perhaps in the heart of this bald man, cold-proof supplies may be more important than a research machine.

"Let's just wait for this heavy rain to pass in the next few days. The temperature will drop sharply and our infrastructure work will have to slow down."

Approaching the parting place, Soma whispered.

Although I had thought that this cooling would come very suddenly, what actually happened was far more serious than imagined.

According to the information on the World Channel, the entire wasteland has entered a period of rapid cooling.

Especially along the coastline, the temperature is even lower than inland.

This can be seen from the recent situation in the Giant Tree Root Sea area reported back by Bao Lei. Recently, the flow of people at the sea station has increased sharply, and the number of people with colds and fevers has been several times higher than usual.

Those already expensive medicines have now been extorted to sky-high prices, and there are complaints and abuses everywhere.

Several people separated at this point, and the team they brought was also divided into four groups.

Although he was very curious about the explosion in Qinggang Shelter at noon, even Xiehu didn't ask.

Everyone knows that this method of holding the bottom of the box is a trump card for a shelter to survive in the wasteland.

Just like they won't tell each other what backup plans they have, asking hastily will only increase embarrassment.

When we left the western suburbs border, we had not yet reached the territorial security wall.

Su Mo immediately caught sight of Su Deben, who was waiting for a response. The latter smiled a little unscrupulously, and it was obvious that the explosion at noon made him very satisfied.

"How is it? The negotiation went smoothly, right?"

"It went so smoothly. Hades was stunned by the explosion. He may have to change his strategy next."

Together they returned to the territory, and Somo highlighted the "Eternal Water God" buried under the city.

It's not yet known whether what Hades said is true, but since Hades is sure to threaten it.

Regardless of whether he can take the initiative to detonate it, or the so-called "harshness" is just a cover.

The territory is around Qinggang City, so we must prepare in advance and be on guard.

Noticing Su Deben's complicated eyes, Sumo suddenly thought of something, and then said:

"But this is not necessarily a bad thing. Everyone has trump cards that the other party cannot solve, so the city can be peaceful."

"Otherwise, if we have demonstrated such a powerful power stone bomb, if the other party has no countermeasures, they may start a war immediately."

"I understand, but if we want to develop, we must always solve this problem."

Sudeben took a deep breath and adjusted his emotions.

The half-finished energy stone bomb can only be said to be a trump card full of uncertainty.

In fact, the original result of today's battle was to detonate one-third of the length of this lightning wall, which is one hundred and ten meters.

But in the end, not even half of it was completed, and many explosive stone bombs failed to detonate at all.

"Don't worry, our current research has just begun. After we truly iterate the complete energy stone bomb, we don't need to be afraid of them."

Somo comforted him, and wherever he looked, he saw the warning wall flashing with dim light.

There are indeed problems with the current energy stone bombs, and the conditions for use are very harsh.

It is necessary to first control the energy inside to about 50%, and then conduct high-heat baking in a short period of time to stimulate the energy to overflow.

During the process, the energy released by the energy stone must be kept within a certain range and cannot escape, otherwise it will cause an internal pressure loss and explosion.

However, it is very difficult to keep it from escaping, and it is very expensive to create a suitable constraint container.

We can only hope that Lu Kuan will continue his research and find a more complete method.

etc.

Suddenly thinking of the challenge mission he had completed during the day, Sumo couldn't help but laugh.

Previously, when upgrading the shelter, there was no option to directly add floors, only to enlarge the area or partially modify it.

So you were waiting here?

After getting on the lizard carriage returning to the dungeon, Sumo just had time to open the system interface and check it carefully.

Enter the task column.

Behind the golden challenge task, a sign of completion has been hung, and a seal has been stamped as if it was serious.

Next to receiving the reward, a line of prompts appeared.

[Record]: It is detected that the current number of layers of the shelter is five underground floors + one above ground level. The host can freely choose to add it to the underground layer or the above ground layer when receiving rewards.

[Record]: The current reward collection time limit is: thirty natural days

[Record]: It is detected that the host has received additional time-sensitive rewards, which can be drawn before receiving the rewards.

[Record]: Please note: Once the reward is received, the time-sensitive reward will be invalid!

"Only thirty days?"

Sumo was a little surprised, but then he became a little clearer.

The shelter currently has only five floors underground and an area of ​​only 2,000 square meters.

If you use system rewards to add a sixth floor, the area will be the same as the previous floor.

But if you save the rewards first, wait until the shelter develops to dozens of floors or the area is enlarged to 10,000 square meters before using it.

At that time, the rewards at this level will be much greater than now.

It's a pity that the system doesn't have bugs like games, so he has anticipated everything.

After thirty days, it is not impossible to continue to increase the area of ​​the shelter.

But it won't be of much significance. If we get 10,000 redress now, we will be in trouble.

"Forget it, just two thousand."

"There should be similar rewards in the future. Now is a good time to see the difference between the shelter layer added by the system and the one given by the game!"

With an idea in mind, Sumo chose to draw a time-limited reward on the spot without any ink.

The familiar roulette lottery page pops up, making people feel trance-like.

Speaking of which, since arriving in the New World, the system has rarely issued such lottery tasks.

Now I see that Soma even feels like we are reunited after a long separation.

But when he saw the awards displayed above the next second, Sumo's eyes widened instantly.

[This lottery is determined to be: Shelter additional layer (technology-oriented)]

[Scope of this lottery: incidental items and facilities]

[This reward is divided into seven items, namely:

1. Giant Telescopic Defense Cannon*1 (probability 1%)

2.K-1V miner special armor*100 sets (probability: 4%)

3. Complete primary industrial production line - cold fusion battery (probability 10%; production technology included)

4. Small Energy Research Laboratory*1 (Probability: 15%)

5. Complete basic living facilities - central petri dish (probability 15%)

6. Complete basic living facilities - indoor self-circulating greenhouse (20% probability)

7. Four-piece set of complete basic activity facilities - simple decoration, bathroom, activity square, kitchen (35% probability)]

Damn it
To be continued...