Around the Central Medical College, the number of zombies is not very large, and the scattered zombies attracted by the sound of cars, Du Zi and the four of them are enough to solve it.

However, in order to collect the alienated crystal nucleus, Lu Cheng still pretended to clean it up together.

The alienation crystal nucleus is not large, and there are no gorgeous special effects in the process of collecting, and no one can see it if you stuff it into your pocket.

After solving the zombies on the periphery, Lu Cheng also collected more than a dozen alien crystal nuclei.

As for the zombies in the school, they can be solved one by one through the iron gate, and there are more than a dozen alienated crystal nuclei in hand.

However, Lu Cheng's promotion to the next level requires sixty-four alien crystal nuclei, and the alienated crystal nuclei on hand are still a little worse.

After the scattered zombies inside and outside were eliminated, Jiang Lei looked at the place in the security room and said to Du Zi:

"Du Zi, there should be a key in the security room, you go over the wall and get the key, I know which one is the door key."

"Okay, Director Jiang is waiting."

Du Zi readily agreed, and then looked at the iron gate in front of him, and climbed up vigorously.

Lu Cheng didn't expect Du Zi to listen to Jiang Lei's orders so much, and ordinary people would definitely be unwilling in this situation.

A person climbs over the wall, who knows if there are zombies in the blind spot behind him, and he runs to the security booth to get the key, how dangerous it is.

Originally, Lu Cheng could do this, but he also wanted to see Du Zi's strength, so he didn't say anything.

Du Zi turned over the iron gate in twos and twos, and was about to leave, when Lu Cheng handed over a machete through the iron gate.

Du Zi was not hypocritical, and quickly took the machete and said:

"Thank you, Brother Lu."

After saying that, he turned around and walked to the edge of the security room with a machete.

There was also a zombie wearing a security uniform lying at the door of the security room, Du Zi did not hide after opening the door, he took the initiative to meet it with a machete, and slashed at the zombie's neck with a knife.

Then he kicked the zombie to the ground, rushed up and stabbed him twice in the head.

The shot is decisive and unobtrusive, and it is already much better than the average person.

It didn't take long for Du Zi to come back with a large bunch of keys and hand the keys to Director Jiang outside the door.

Director Jiang quickly found the key to the gate, opened the iron door, and the others hurriedly entered the campus.

There was a teaching building in front of him, and he could see those zombies wandering in the corridor in twos and threes, Lu Cheng couldn't help but ask:

"Uncle Jiang, when the end of the world first came, the students were on vacation? The number of zombies in this school building is a bit small. ”

Director Jiang shook his head and said:

"There must be no holiday, but it's really a little less, I suspect it's because of the appearance of alienated zombies outside."

As he spoke, he glanced at Jiang Shuyao, who was following Lu Cheng, and continued:

"According to my observation, where there are alienated zombies, the number of ordinary zombies around will gradually decrease, either by themselves or by the alienated zombies, so it doesn't seem that there are many zombies in this teaching building."

As soon as Du Zi heard this, he immediately said nervously:

"Director, there are basically no zombies in our community, could it be that they are also ghosts caused by alienated zombies?"

When Lu Cheng heard Du Zi say this, he knew that Jiang Lei must not have told Du Zi about his daughter having become an alienated zombie, and Lu Cheng naturally wouldn't talk much.

Jiang Lei replied absentmindedly:

"Perhaps, it may also be that they migrated by themselves, but there are few zombies in the community, which is always a good thing."

"Yes, too."

Du Zi and the others were sober, but Jiang Lei quickly signaled everyone to be quiet.

A group of nine people shuttled through the campus, and even if they were careful, they must have attracted the attention of the zombies around them.

Along the way, they kept dealing with those zombies that were close to them, and it was not long before Lu Cheng and the other nine people touched the place in the core teaching area.

The main body of the whole teaching area is a large comprehensive laboratory, next to two connected teaching buildings, and the three buildings form a semi-enclosed semicircle.

There are a total of six entrances and exits, but each entrance has a special access control setting.

In addition, the defense in the comprehensive laboratory is even stricter, just listening to Jiang Lei's simple description, it basically satisfies Lu Cheng's imagination of strict security that flies can't fly in.

In other words, this complex building is now a super-large Gu breeding center.

It's been almost two months since the end of the world, and I don't know what's going on inside this Gu vessel.

But there are definitely elite-level zombies.

Now the school has a power outage, and I can't get in by swiping my card or face, and I can only try to open the door with the key I got from the security office.

Luck is still good, Jiang Lei didn't try for long before he found the key to open the door.

The doors of the comprehensive laboratory have reopened after nearly two months, and sunlight can penetrate the dimly lit laboratory building, and even particles floating in the air can be seen.

The sound of opening the door echoed in the empty hall for a few rounds, and Du Zi and a few people deliberately stood in front of Lu Cheng, Jiang Lei and others, as if they were ready to defend against the zombies that rushed out at any time.

After all, just opened the door, and the dim environment inside suddenly made people's eyes a little uncomfortable, and they couldn't even see if there were zombies in the living room.

Lu Cheng relied on the ability of Eagle Eye, and immediately found that there were no zombies in the hall, and seeing that Du Zi and a few people were still cautious, he took the lead and walked in.

"Brother Lu, be careful."

Du Zi reminded in a low voice, but Lu Cheng waved his hand and said:

"Don't worry, there's nothing in the hall."

Du Zi and the others were still puzzled, but Zhang Xiaoyun, Shen Xue and Jiang Shuyao had already followed Lu Cheng and walked in.

Jiang Lei then followed, and the remaining Du Zi and the other four people walked cautiously into the hall.

Shen Xue and Jiang Shuyao were naturally very silent, but Zhang Xiaoyun looked very casual with his hands behind his back, but the machete in his hand was quite piercing.

Lu Cheng also looked relaxed, but he was not underestimating the enemy, but deliberately made some movement on this side of the hall, if there were zombies nearby who could hear it, they would definitely come over.

It would be best if there were elite-level alienated zombies, after all, on their own side, the combat power of the four alienated zombies could be said to be pouring out.

Even if you can't beat and turn around, you can run, but the environment inside is complicated, so it's hard to say.

It's a pity that there aren't any elite-level alienated zombies nearby, and not even ordinary zombies have encountered one.

On the contrary, it was this almost silent environment that made Lu Cheng even more vigilant.

These zombies can't evaporate, and I don't know how powerful the Gu they are in this kind of Gu dish environment.

The group hurriedly observed the environment, and then went to the core test area under the leadership of Jiang Lei.

There is only one entrance, and although this door also has a mechanical key jack, Jiang Lei tried the doorman key again, but none of them could be opened.

Looking at the door, he could only stare dryly, Jiang Lei hesitated for a moment and said:

"If it doesn't work, try your luck in the backup motor room, and if the backup power is still available, the door will still be open."

Du Zi hurriedly nodded and said:

"Director, let's try."

Jiang Lei was about to speak, but suddenly heard a slight movement in the direction of the door behind him.

Lu Chengcheng clenched the machete in his hand and said in a low voice:

"Something's coming!"