Ye Feng was like a sneaking black cat, his body was not only fast, but also light, and after a while, he had already come to the experimental building.

When he came to the door of the experimental building, he found that the originally thick iron door was open, and after solving a few zombies nearby, Ye Feng entered the experimental building and quickly closed the iron door to prevent zombies from entering the experimental building.

After closing the iron door, Ye Feng walked upstairs with light steps, according to the map of the experimental building, the main equipment of the experimental building is on the third floor, as long as you get there, you can use the equipment to extract the evolution liquid.

"What a strong smell of blood!" When he was approaching the third floor, Ye Feng frowned, and he smelled a smell of blood, and the higher he went, the stronger the smell became.

Ye Feng clenched the battle knife in his hand, lightened his steps even more, and quietly came to the third floor like a wandering spirit, but he didn't find anything abnormal inside, not even a zombie.

"What's going on?" Ye Feng was puzzled in his heart, originally thought that there might be a lot of zombies on the third floor who were eating, which would cause such a strong smell of blood, but it was very quiet inside, and there was no sound.

Ye Feng gently pushed open the glass door on the third floor, entered the corridor on the third floor, and walked towards the experimental hall.

The closer you get to the experimental hall, the stronger the smell of blood, and the quiet environment makes people feel a little scary and depressing.

A minute later, Ye Feng came to the experimental hall, his eyes scanned for a week, and his brows immediately furrowed.

At this moment, inside the experimental hall, it was completely a Shura scene, with blood everywhere, stumps and broken arms, and on a wooden table, a naked girl was lying.

The girl's hands were fixed to death on the wooden table with a scalpel, and there were all kinds of bite marks all over her body, and the firm twin peaks on her chest were also missing, not cut off, but bitten alive.

What made Ye Feng frown the most was under the girl, under the girl, there were two broken desk sticks, and the methods were very cruel.

Near the girl, there were three people with only their bodies left, two women and one man, their limbs had been removed, their faces were full of fear and pain, apparently suffering inhumane before they died.

For such a tragic situation, Ye Feng didn't have much feeling in his heart, after twenty years of the last days, he had seen these scenes that had become commonplace, and even dozens of times more cruel than these.

Moreover, Ye Feng had also used more cruel means to treat the enemy than this, so that he didn't feel any discomfort, but now that the disaster had just broken out, seeing such a scene did make Ye Feng frown a little.

"Hey!" Ye Feng sighed lightly, retracted his thoughts, ignored the corpses on the ground, and began to look for the experimental equipment he needed.

"Huh?" Just as Ye Feng took a few steps, he was suddenly attracted by something.

In front of Ye Feng's eyes, it was a huge fiberglass, and it still exuded the smell of formalin, obviously this was a large vat of soaked corpse specimens, and it was not the fiberglass that attracted Ye Feng, but the things inside.

There was a crimson thing soaked in the glass jar, but judging from the appearance, it could be seen that this thing should be a person, and it was also a woman.

It's just that this woman has no skin all over her body, only black and red alternating subcutaneous tissue, black subcutaneous tissue, which is caused by carbonization, and red subcutaneous tissue, pitted, is obviously caused by being peeled alive.

"Is this ,,, concentrated sulfuric acid?" Ye Feng found a container next to the fiberglass, which also emitted a pungent smell, which was concentrated sulfuric acid with a concentration of 98 percent.

Next to the container of concentrated sulfuric acid, there is also a sharp scalpel, and the irregular skin of flesh is scattered around it.

Seeing this, a terrible scene appeared in Ye Feng's mind, the woman soaked in formalin was likely to be poured with concentrated sulfuric acid, and then peeled off the flesh, and without death, threw it into a glass jar full of formalin, and made a biological specimen alive.

Thinking of everything that happened here, Ye Feng felt a little chill in his heart, although Ye Feng knew that after the disaster, the order collapsed, the end of the world came, and the whole world became cruel and bloody.

Now it is only the second day of the end of the world, and such a situation has occurred, which really makes Ye Feng disgusted.

A long time ago, Ye Feng heard that at least 40 percent of the people in the country are in a state of sub-mental health, that is, 1.4 billion people, and at least 500 million people have certain psychological problems.

It's just that at that time, the powerful organs of state violence were operating, and even if there were tens of millions of dissatisfactions, they could only hold back.

Just like any post, it will trigger an online scolding war on the Internet, and even many people play the positive side for a while, and play the negative side for a while, lest the world will not be chaotic, arguing and abusing endlessly, resulting in people looking at the Internet, they feel that society is going to collapse, the world is going to war, and the sky is about to fall.

However, after stepping off the Internet, people's lives immediately returned to the right track, everything is as usual, those who should move bricks or move bricks in accordance with the rules, those who should go to the assembly line as robots or work honestly, and those who should be scolded by the leaders as melon babies, or endure it silently.

This status quo shows that many people live a very depressed life, and long-term depression leads to psychological distortion.

Now that disasters have broken out and society has collapsed, these distorted psychology will be infinitely magnified, and it is not strange to do these crazy things.

Ye Feng just looked at the glass jar for a few seconds, then returned to his expressionless face again, and continued to look for the extraction equipment he needed.

Half an hour later, in front of Ye Feng's desk, there were dozens of experimental equipment, beakers, alcohol lamps, graduated cylinders, pipettes, crucible pliers, glass rods, etc.

After looking for the equipment needed to extract the evolution liquid, Ye Feng found some more tape and thread, left the third floor, and came to the gate on the first floor.

Ye Feng flipped his right hand, took out a Type 95 automatic rifle from the space ring, replaced it with a new magazine, and then used things such as tape and thread to simply create a trap.

As soon as someone breaks down the gate, the automatic rifle is immediately triggered, and then the automatic rifle facing the gate is pulled on the trigger and shoots a bullet that will not stop shooting until a magazine is finished.

Ye Feng is like this, also for the sake of safety, he doesn't want to be disturbed when extracting the evolution solution, and after extracting the evolution solution, when injecting the evolution solution, there will be a few minutes to more than ten minutes of evolution time.

In the evolution time, Ye Feng almost didn't have any self-protection ability, if he was attacked by someone at this time, then the consequences were unimaginable.