"City Lord, where are we going now?" asked the optimistic Xiaohan standing at the door of the greenhouse.

She is much stronger than Li Yu imagined. She saw Li Yu murder with her own eyes and was able to remain relatively calm.

A trace of surprise flashed in Li Yu's eyes, but after thinking about it carefully, he thought it was reasonable.

After all, Xiaohan followed Song Min before, and they experienced some things together, and even witnessed Song Min Lingchi's Zhou Sheng with his own eyes.

"I'll take you to the residential building opposite first. Find a place for you to stay. When the situation gets better, you can return to the inner city." Li Yu thought for a while and said to Xiaohan.

Then he glanced at his third uncle and nodded.

open the door.

After the two came out, he glanced at the people in the greenhouse with cold eyes.

The look in his eyes made everyone inside feel as if they had fallen into an ice cellar.

"Let's go!" Li Yu turned and left.

The distance from the greenhouse to the residential buildings in the outer city was very close. Li Yu shone the searchlight over it, but he could still only see one or two meters to the side.

After taking two steps, I saw lights on the opposite side and several figures walking over.

Before Li Yu could speak, a voice came from the person opposite: "Who are you?"

"It's me." Li Yu said loudly.

"It's the city lord."

"The city lord is out."

There was a discussion on the opposite side, and along with the sound of footsteps, these people's faces appeared in front of Li Yu.

"City Lord, we are going to the outer city wall now." He Chao, the leader, said happily after seeing Li Yu.

Li Yu nodded, then pointed at Xiao Han and said to He Chao: "Send someone to take her to a residential building in the outer city."

"Okay, Aguang, you send her in."

Aguang took a flashlight, walked to Xiaohan, and then took her to the residential building in the outer city.

Watching the two people leaving and disappearing into the thick fog, Li Yu nodded, and then continued to say to He Chao:

"When I was passing by the greenhouse just now, I heard that there was a situation in the greenhouse of my collaborators. You will send the message to Lao Luo later and ask him to lead people to look at the greenhouse."

"Ah? How dare they rebel?" He Chao was both angry and surprised.

He originally thought that killing so many people before would scare these people, but he didn't expect that there would still be people who dared to cause trouble at this critical moment.

It seems that the killing was not brutal enough.

Li Yu continued: "I have killed those two arrogant people on the spot, but this matter must be thoroughly investigated."

With that said, he walked towards the outer city wall.

There are large searchlights on the outer wall of the city, which can illuminate situations a hundred meters away.

However, in heavy fog, even the light from the wall to the ground cannot reach a distance of thirty meters.

Li Yu and the others could only see dim lights on the ground.

He Chao frowned and followed behind Li Yu and his third uncle.

Tap tap tap!

Climb the outer city wall.

Li Yu then saw Lieutenant Commander Yang standing next to the liquid nitrogen sprayer, wearing an oxygen mask and gloves, spraying continuously outside the city.

The liquid nitrogen was sprayed down, and at a speed visible to the naked eye, the heavy fog outside the wall dissipated, and light rain began to fall.

Liquid nitrogen has a very low temperature and is highly volatile. When it is sprayed in the air, liquid nitrogen will rapidly expand and absorb a large amount of heat, causing the temperature of the surrounding environment to drop sharply, and the water vapor in the air will quickly condense into rain.

Li Yu stood on the edge of the wall, looking at the light rain outside the outer city wall. The liquid nitrogen was colorless and odorless, creating such a wonderful scene in the heavy fog:

Shrouded in thick clouds, there is a small area of ​​open space. There is also thick fog in the sky, as well as on the left and right sides, but only this area is covered with light rain.

Like a dream or an illusion.

With the illumination of searchlights, they could see the situation on the ground outside the wall while standing on the wall, and they could see as far as tens or hundreds of meters.

After the liquid nitrogen is sprayed out, it spreads farther away with the wind, but heavy fog keeps coming from all directions.

This is not a regional heavy fog. It covers an extremely wide area, so once the liquid nitrogen spraying stops, the nearby heavy fog will fill in.

"call--"

Li Yu saw the situation outside the wall. The fog had just begun, and no zombies had come outside the base yet.

After all, normally, when they entered and exited the Da Zhangshu Base and saw zombies, they easily dealt with them.

Therefore, within a five-kilometer radius of the Da Zhangshu base, as long as there is no heavy rain, there are very few zombies.

"City Lord." Zhongshi Yang put on an oxygen mask and said quickly after seeing Li Yu.

On the outer city wall, because the sprayed liquid nitrogen will blow onto the wall to some extent, blank areas without thick fog are formed on the wall.

It's just that these blank areas are a bit strange, only two or three meters high.

There was thick fog again above.

It's as if the sky is above your head, and people can't help but stop and admire it.

Li Yu nodded to Zhongshi Yang, and then walked straight to the duty room.

In the duty room.

The second uncle, Li Hang, and Li Tie are all here.

"Second uncle."

Li Yu pushed the door open and came in, and said to his second uncle.

"Xiaoyu."

"City Lord."

"Brother."

He Chao, who came in last, quickly closed the door to prevent the heavy fog from blowing in.

The heating was turned on in the duty room to dry out the water vapor in the duty room.

Li Yu turned off the flashlight in his hand, and then said to his second uncle:

"What's the situation now?"

The second uncle frowned and replied:

"This time the heavy fog is coming fiercely. Although liquid nitrogen is sprayed now, the effect is limited. The range that can be covered is only around the spray area. The zombies have not come yet. I am afraid that when the zombies come, they will form stacks like during heavy rain.

."

"Is liquid nitrogen still being produced?" Li Yu asked.

"It's still in labor, Kong Shuang is watching over there," the second uncle replied.

Li Yu thought for a while and continued:

"In this way, you ask half of the combatants on the inner and outer city walls to change the direction of the liquid nitrogen sprayers and spray them all in the direction of the base. You can't see anything in the base now, and there will be problems with personnel deployment and transportation. This won't work.

."

This chapter is not over yet, please click on the next page to continue reading! The second uncle nodded and then picked up the walkie-talkie:

"Attention all combatants on the wall, the single-numbered liquid nitrogen sprinklers continue to spray outside the base, and the even-numbered liquid nitrogen sprinklers spray in the direction of the base."

Sizzling——

"receive."

"receive."

....

The voices of those people kept ringing on Uncle Er's walkie-talkie.

Li Yu looked at the military radio and asked his second uncle:

"Is there heavy fog over there in Oil City?"

The second uncle hurriedly said: "I just finished talking to Ju Tianrui before you came. There is no heavy fog there yet. In addition, there is no fog over the federal garrison in the north, nor over Lao Xie's side."

Li Yu frowned and thought to himself: Maybe it hasn't blown there yet.

Outside the duty room.

The uncle stood on the wall, frowning.

He had just notified Lao Bi in the outer city and asked him to bring people up quickly to support him. Now Lao Bi is probably still on the way.

Spraying liquid nitrogen requires manpower, but guarding the fence also requires manpower.

The zombies haven't come yet, so the manpower is not tight, but if the zombies come, it will be a bit troublesome.
To be continued...