On a hillside eight kilometers away from the Oil City, Lao Xie and more than a dozen people parked their Big Mac there, and a wave of zombies surrounded them.

The effect is almost the same as the last time I used the potion.

The only difference is that this time the zombies are attracted for longer.

It has been a week since Lao Xie opened the potion and the smell of the potion was released, but zombies are still surrounding Big Mac.

Time flowed slowly, and four days passed in the blink of an eye.

On this day, Uncle San and others were holding binoculars on the wall and could see that the zombies around the hillside were retreating.

This means that the effectiveness of Type III zombie attractants is reduced.

Another day later, most of the zombies that had originally gathered on the hillside returned to the wall of the trading market.

The thunderstorm disaster has lasted for nearly three months now.

The trading market has not changed much from the past, except that people starve to death or die of disease every day.

Faced with this situation, Oil City is powerless.

Food is limited, and they don't know how long the natural disaster will last.

Although Li Yu found Qingyuan for divination, it was not a 100% guarantee and they did not dare to gamble.

Lao Xie and the others are back, and so is the zombie wave.

It is still the volunteers taking turns in the oil camp and the trading market.

During this period, they discovered that there were more and more mutant zombies.

Whenever such zombies are discovered, combatants directly join the battle and use firearms to kill those mutant zombies.

It is difficult to kill these mutated zombies with just the steel pipes in the hands of volunteers. Only occasionally when volunteers happen to hit the eyes of such zombies, the zombies will die.

Oil City Conference Room.

"There are more and more zombies that can climb walls. 23 of them were discovered yesterday alone. These zombies mutate very quickly and are now able to climb walls."

Xiao Jun looked serious and stood up to report the current situation to everyone.

He is the chief official who just came off the wall of the trading market this morning, and he knows the situation outside best.

Everyone was shocked when they heard the news. They never expected that this kind of wall-climbing zombie could change so quickly.

From the first mutant zombie discovered, which could only stay on the wall for two seconds, it only took a month and a half for it to evolve into the ability to climb the wall.

Even if it can climb like a gecko, it can climb quite quickly.

This has led to a sudden increase in the manpower required on the fence, and combatants need to be on it at all times. Once discovered, they will be shot with guns.

These climbing zombies are hidden among ordinary zombies and are difficult to detect under the cover of heavy rain. Unless such zombies start climbing against the wall, they are easily discovered.

This also means that even when the oil formation is activated, combatants need to take turns watching it to prevent one or two climbing zombies from running out.

The third uncle also felt that it was a bit tricky. It was okay that this natural disaster had continued with no end in sight, and the zombies had mutated into such disgusting variants.

Now that the Type III zombie attractant has been used up, the trading market and the oil city can only continue to support themselves by relying on the volunteers in the oil array and the trading market.

Although bullets can easily kill wall-climbing zombies, bullets are not unlimited and will always be used up.

We don’t know when the natural disaster will end, and the number of wall-climbing zombies is also increasing. This uncertainty is the source of fear.

At this moment, the operator sitting in the back suddenly said to Uncle San:

"Minister, the city lord of the headquarters base is looking for you."

The third uncle immediately stood up and walked to the radio station. After chatting for a few words, his face became a little solemn, but soon there was a hint of joy.

"Okay, I get it."

The third uncle turned around and returned to his seat at the top. Everyone was looking at him. They also wanted to know what news was coming from the headquarters base.

The third uncle saw everyone looking at him, took a drink of water and said:

"Zombies that can climb walls have also been found at the headquarters base. This is good news and bad news."

"Let the headquarters base get samples of this mutated zombie as soon as possible, so they can study it as soon as possible and come up with ways to restrain this zombie.

However, this kind of zombies also appear at the headquarters base, which means that this kind of wall-hanging zombies are not found near Oil City. They are not a special case, but a common occurrence.

In the future, we may encounter this kind of zombies more often."

After everyone heard the news, their expressions were a little complicated.

The Oil City here is no better than the Da Zhangshu Base, it does not have complete scientific research equipment, and there are no professional biological experts.

The sooner the headquarters base gets the sample, the sooner it may be able to come up with a solution.

........

Big camphor tree base.

Scientific research institute.

Under the bright incandescent light, Li Yu stood with his hands crossed, quietly looking at the zombies in the bulletproof glass.

Through the transparent bulletproof glass, you can clearly see the soft burrs on the zombie's hands and feet, stuck to the glass, and the zombie crawling along the glass.

The iron chains on his feet made a clanging sound.

In addition, this zombie's chest protrudes, revealing hard bone spurs.

"Is this the wall-climbing zombie found in Oil City a month ago?" Li Yu asked after looking at the zombie for a while.

Bai Jie next to her nodded and said:

"Based on their description in Oil City: bone spurs protrude from the chest, soft burrs grow on the hands and feet, the ability to climb, and a hard skull.

The characteristics they described are basically consistent with this zombie, and I think it should be the same type of zombie."

"Have you found anything through research? What do you think are the conditions for this kind of zombie mutation?" Li Yu twisted his neck and made a clicking sound.

Bai Jie took out the slice research report from the table next to her, glanced at it and said:

"Since zombies can eat their own kind, sensitive zombies and powerful zombies have appeared one after another. Through slice studies, it was found that the virus content in this kind of wall-climbing zombie is ten times higher than that of ordinary zombies."

This chapter is not over yet, please click on the next page to continue reading the exciting content! "It is even about three times higher than the agile and powerful zombies."

"So we judge that the reason why this kind of wall-climbing zombie mutates is the same as the formation of several other mutant zombies: phagocytosis of the same kind increases the amount of virus, and it is catalyzed by trace elements in heavy rain, which leads to changes."

While Bai Jie was talking about this, Li Yu got closer and observed the wall-climbing zombies imprisoned in the bulletproof glass.

The wall-climbing zombie inside has no hair on its body and has sunken eyes. The biggest difference from other ordinary zombies is the bone spurs protruding from its chest.

Roar!

The zombies imprisoned inside saw Li Yu and pressed themselves against the bulletproof glass. They immediately climbed down and roared through the bulletproof glass.

But because the mouth was welded shut by an iron shield, the iron shield was welded directly to its head, which resulted in a hoarse and weak roar.

It just lay on the glass for a few seconds and immediately ran back to the corner of the glass room.

"It's so ugly." Looking at this ferocious zombie, Li Yu couldn't help but complain.

This was also the first time he had seen this kind of zombie. He had never survived a thunderstorm disaster in his previous life, nor had he seen this kind of wall-climbing zombie.

"Ahem, haha." Xiaolan, Ma Di, Zhao Ke, Kong Shuang, Wang Yin and other scientific researchers next to them all suppressed their laughter after hearing Li Yu's complaints.

This city lord's angle of concern is quite unique.

"It looks a little restless..." Li Yu looked at the zombie jumping up and down, seeming very uncomfortable.

"Was this zombie so restless when he was just caught?"

"Well, that's how it was when we were arrested."

Li Yu stared at the zombie, and his keen observation allowed him to find that the zombie seemed to be avoiding the light source in the room.

He just rushed over and pressed against the glass, then quickly retreated back into the glass room.

Seems to be trying to avoid the light in the room,

But this was in a scientific research room, the light was diffuse, and the incandescent light was very bright. After all, this zombie couldn't completely avoid the light.

"Go and turn off the lights in the laboratory." Li Yu squinted his eyes and said softly.

"Hmm?...Okay, Xiaolan, go and turn off the lights." Bai Jie was a little confused at first, but soon realized Li Yu's intention.

He wants to conduct a light sensitivity test. They study the characteristics of zombies and always use various methods to test, including light tests, light tests, hearing tests, smell tests...

Light test.

In fact, every other zombie they caught before would have gone through this test, which was a basic operational test. However, this zombie had just been caught and had not been tested yet. It was just sliced ​​into pieces for pathological research.

Bah!

The incandescent lamps in the row on the left were instantly turned off.

The light in the laboratory dimmed a bit.

But this zombie didn't move at all, remaining the same as before.

"continue."

Bah!

The middle row of incandescent lights is turned off.

The laboratory was mostly dark.

Everyone focused their attention on this zombie, trying to see if it would be less restless.

The zombie, who originally had his back to everyone, suddenly turned around slowly and seemed to be much calmer.
To be continued...