The one who was dragged in was still a zombie wearing a nurse's uniform. Shen Feng grabbed the nurse zombie's hands and wrists and did the same, locking her firmly on the test bed.

Then continue to start the test.

There are a lot of stocks in this virus laboratory, including some other virus and bacterial samples.

While many are dead, there are still some samples of viruses and bacteria that are still alive in the sealed medium.

Shen Feng took out these samples and injected them into the culture medium of the stone statue virus in turn to observe the changes and reactions.

At the same time, he made an inducer to induce the mutation of the stone statue virus.

When doing these things, he wore protective gear all over his body, and had the stone statue virus treatment medicine on hand.

After all, the origin of this virus is unknown, and it is so active. If there is any powerful mutation type, maybe even him will be infected.

Although he has been injected with the stone statue virus treatment agent and has antibodies in his body, he still has to be as careful as possible for the viruses created by the indescribable existence.

In the process, he also saw the power of the stone statue virus.

Not only is its own vitality extremely tenacious, but also its offensive power is strong. Other viruses and germs are simply a group of children in front of the stone statue virus.

Not a single one can hit.

However, this thing itself has a characteristic, that is, it is only for humans.

The reproduction iteration and mutation induction of a virus is a very long process. Even if the activity of the stone statue virus is much higher than that of ordinary viruses, it will also take a certain amount of time.

At this time, the things that Shen Feng brought came in handy.

After arranging dozens of petri dishes and performing various types of induction stimulation, Shen Feng quietly opened the window under the cover of the night, climbed out from the window, and walked towards the first floor of the hospital with his weapon.

It was still dark outside, and the roars of zombies were faintly heard in the distance. It sounded rhythmic one after another, as if the wolves on the grassland were hunting, and I didn't know what happened there.

Landing on the street, Shen Feng didn't dare to stop at all, quietly entered the hospital again, and found the room where the guard was.

Pushing the door in, you will see a zombie standing silently in the dark, dormant.

Shen Feng stepped forward and quickly put the barrel of the gun between the zombie's eyes, and pulled the trigger the moment the other party opened his eyes.

The zombie was instantly headshot, and Shen Feng grabbed the opponent's collar to avoid the sound of falling to the ground attracting other zombies in the hospital, and gently placed the opponent on the ground.

Then he quickly checked the entire security room in the dark, and found several newspapers on the table, as well as some registers and record books.

As well as a shotgun, a pistol and some bullets.

After all, it is a private hospital in Mexico City, security is a must, and there are often more than two guards with guns.

After checking the two guns, the shotgun was similar to the one Shen Feng threw away, and the silencer he left behind can also be attached to this gun.

Carrying all the shotguns and bullets on his body, and loading up all those newspapers, registers, and record books, Shen Feng quickly left the security room. This time he was familiar with the road and climbed up the outer wall, and soon came to the virus again. The floor where the laboratory is located.

At this moment, a loud "bang" suddenly came from the darkness in the distance, and the flames shot into the sky, followed by the sound of "da da da" gunshots, which cut through the quiet Mexico City!

The fire was emitted from a high-rise building in a dozen blocks. At this time, a certain floor of the dozens of-storey building began to burn fiercely. In this absolute darkness, it even illuminated the street where Shen Feng was located!

Shen Feng had also heard the explosion just now, and he was quite familiar with it.

That's the sound of grenades and RPGs!

Immediately afterwards, there was a faint sound of melodious gunshots, the muffled sound of Bartley's sniper rifle.

There's a firefight in that building!

As for what to exchange fire with, it is naturally self-evident, it must be zombies.

The opponent's firepower is obviously very abundant, with a lot of heavy weapons, and there should be more than one person.

However, Shen Feng was not optimistic at all about the opponent's fate.

They were trapped in that building, no matter how abundant weapons, how long could they last in the face of the siege of the corpse?

You know, it's not just the zombies in that building...

On the street below Shen Feng, the zombies who were sleeping in the darkness opened their eyes one after another, then roared wildly and ran towards the burning building!

In the surrounding buildings, including the hospital building where Shen Feng was, there were even many zombies who broke through the windows and rushed out, fell onto the street and fell into a **** mess, then staggered up and ran towards the gun. The sound and explosion came from the building.

Looking from a distance, in the darkness in the distance, there are still many shadowy figures, their eyes reflecting a terrifying light like a cat, and flocking to the building.

Like a tide surging in the darkness.

Shen Feng was hanging on the window sill on the fifth floor of the hospital at this time. The zombies were completely attracted by the sound and fire in the distance, and did not find him.

He himself also held his breath, trying to hide his breath.

When the zombies on this street had almost run away, Shen Feng immediately turned over and got in through the window.

After being sterilized in the sterilized isolation room, he returned to the cultivation room of the virus laboratory again.

Putting down the things in his hand, Shen Feng did not rush to check the newspaper and record book, but went to the window, took out the telescope, and looked at the building in the distance.

At this time, the middle of the dozens of-storey building had completely burned, and the flames were still rising, which completely illuminated the city.

There are tens of thousands of zombies rushing past frantically below, like a group of tireless ants, climbing directly from the outer wall of the building!

Moreover, more and more zombies are rushing to the bottom of the building, climbing and stacking each other, like forming a tower of people, climbing up by stacking Arhats!

The zombie at the top has even climbed to the waist of the building, and ignoring the pain, it climbed directly into the burning area, and the whole body is burning with flames and continues upward!

This scene made Shen Feng shudder.

Zombies do not feel pain, they only have an obsession to eat humans, and their slight variations are in line with the Uncanny Valley theory. For humans, they are completely nightmare creatures.

"bang—"

"boom!"

"Da da da…"

The sound of gunshots and explosions was still coming. Shen Feng found through the telescope that there were several figures on the top of the building at this time, and they were constantly shooting down the climbing zombies.

These people's weapons and equipment are very abundant, and they drop some grenades from time to time, or shoot a rocket, and immediately hit a zombie.

Moreover, the sniper rifle can directly dismember a string of zombies with one shot.

But there are too many zombies, and they are not afraid of death at all, or there is no concept of fear at all, and they are still climbing up like an ant colony.

Behind Shen Feng, the nurse zombie tied to the test bed began to struggle frantically, with a low roar from his mouth, apparently also attracted by the sound and fire outside.

Shen Feng immediately stepped forward and tightly wrapped the nurse zombie's nose, nose and head with tape, tied her to the test bed, made a "shush" gesture, and said:

"Be quiet for a while. If you go out and climb the stairs now, you will either be burned to death, bombed to death, or beaten to death. It's too dangerous. It's better to live a few days longer and be killed by me."

Then he went back to the window again and looked at the building.

I saw that the dozens of zombies that climbed in the front had already approached the rooftop at the top of the building at this time!

These zombies all came through the line of fire, and the whole body was on fire and the skin was burnt. It looked like a ghost crawling out of purgatory, but it was still going up.

Their strength is amazing, and occasionally there are zombies that fall from above, but most of them still hold the protrusions of the outer wall and keep going up, as if they will never get tired.

Originally, Shen Feng thought that those people on the rooftop would eventually be burned to death by the fire, but he did not expect that the corpse group would arrive one step earlier.

The seven or eight people on the rooftop were still shooting frantically. At this time, white powder was still floating on the roof. These people were also jumping like crazy. Falling all around, like a rain of fallen leaves.

It seems that they also understand that they are at the end of their lives and have been completely mad.

Shen Feng nodded, this was in line with his previous judgment.

In Mexico City, there is obviously only one kind of person who has more advanced heavy weapons than the police.

I just don't know how these people alerted the zombies to be discovered?

The reason why this building caught fire directly should be their own arrangements in advance.

More and more zombies climbed over the fire line of the building and came to the roof.

Finally, a few burning zombies turned over and climbed onto the roof of the building, rushing towards those people.

At the beginning, they still killed these zombies, and even threw their burning corpses from above, but later, as more and more zombies climbed up, the weapons of these people were unsustainable, and they were finally drowned by the zombies. roof.

Shen Feng couldn't help smacking his lips, feeling a little pity for these people.

These people should be immune, it is estimated that they will be eaten alive by zombies.

Shen Feng turned his head and was about to close the curtains. At this moment, he saw a huge fireball suddenly rise from the roof of the building. After a while, a loud noise came. The flowers were blown high into the sky and scattered again, accompanied by a huge amount of dollars.

Among these broken arms and stumps, there are obviously zombies and human limbs.

Those survivors should have placed the explosives in advance~lightnovelpub.net~ and chose to die with the zombies at the last minute.

So many dollars, I don't know whether they have been accumulated before the cataclysm, or collected in the end times.

No matter what it is, it is useless, but it can buy a way for them to go to hell...

The top floor of the entire building had been blown up, and the flames below continued to burn upward, turning the building into the most dazzling torch in Mexico City.

At this moment, a rhythmic roar suddenly came from the direction of the building. The roar was full of anger and fury, and seemed to be very annoyed at the stubborn resistance of those humans.

Immediately afterwards, another burst of roars echoed each other, and then similar roars came one after another, and the emotions could be heard from them!

Shen Feng couldn't help but look condensed.

These roaring zombies have become conscious! ?