"——The password is correct!" A cold mechanical voice rang out.

Everyone's breathing slowed down for a moment, staring at the open door, and the scene inside the institute slowly came into view.

The huge laboratory is equipped with a variety of scientific research instruments that only professionals know how to operate. Various bottles, jars and test tubes are placed on the table or hung in the air, and some of the test bottles still have colored liquids left in them.

When people enter the laboratory, the door closes automatically, creating an independent space.

Fu Chen and Liang Zhiyu restored the power to the Virus Research Institute. The lights in the laboratory were bright and the various instruments were illuminated very clearly. Even after a year, this high-tech place did not look shabby at all.

The further you go inside, the more amazed you are. The rumored virus research institute that never existed is so huge that one wonders how much money was spent to build it.

Walking past the lab bench and into the quiet laboratory, there was only the sound of light footsteps, which made people even more nervous.

"Ah!" Bai Tiantian screamed.

Everyone stopped and looked at the scene in front of them, with a creepy feeling rising from their backs.

Rows of two-meter-high experimental liquid-filled chambers were filled with naked people, or now we should call them corpses. The horrific scene made people feel cold from the soles of their feet.

Bai Tiantian couldn't help but want to grab the people around her, but she caught nothing. Ever since she started causing trouble frequently, everyone in the team became indifferent to her.

She was really scared. She walked to Bai Qingqing with red eyes, grabbed her arm and trembled.

Suddenly someone grabbed her arm, and the fear in Bai Qingqing's heart dissipated a little. She looked at Bai Tiantian who was grabbing her in confusion.

"Qingqing, I'm scared." Bai Tiantian said in a low voice.

Bai Qingqing used to be disgusted with Bai Tiantian for not knowing how to have an appropriate Madonna outburst, which caused her to get injured and almost die, and she treated her coldly.

Later, Bai Tiantian sincerely apologized to her. Seeing how guilty she looked, her resentment disappeared a lot. Seeing her pitiful look, she forgave her.

"Just stay next to me and don't hold on to me." Bai Qingqing pulled her hand away.

Bai Tiantian nodded and followed her with red eyes.

Suddenly seeing the scene of using humans for biochemical experiments, everyone felt a little horrified. Soon they realized that before, it was said that the zombie virus was caused by an accidental leak from the virus research institute, which led to human mutation. Now it seems that someone had planned it in advance.

Li Jin frowned, walked to a liquid chamber, and observed the experimental subjects soaked inside.

Bai Qingqing didn't dare to get too close to these liquid capsules. She wondered in her heart whether these glass capsules were sturdy. If these experimental monsters woke up, the team would be in trouble.

Fu Chen and Liang Zhiyu also walked to the liquid chamber and observed the corpse soaked in the liquid.

These corpses are different from the zombies outside. Their skin is pale and bloodless, but they still retain their complete human form. They look like humans who have lost their lives.

"What's the gain?" Fu Chen asked.

Li Jin retracted his gaze and said, "If possible, I would like to take away a liquid laboratory chamber."

Liang Zhiyu glanced at the liquid experiment chamber and said, "You can take it away if you want." He looked at the two girls and said in a calm tone, "Take it down and put it in the space."

Bai Tiantian bit her lips tightly. If this thing was put into her space, it would be a nightmare for her.

Bai Qingqing frowned. She also didn't want to carry a test subject full of viruses and bacteria, but she also knew that she had to take a test subject away, which would be beneficial to the research of the zombie virus.

Fu Chen looked at them and said, "Put one in each person's space."

No one expected that there would be an experimental subject, so they had to stop and dismantle it. The four men were divided into two groups to dismantle the experimental subject, and the girls stood aside and watched.

Xiao Yang's eyes flashed with disdain, and he said, "Those researchers have lost all conscience and actually used human bodies for experiments. It's disgusting to watch."

"So they turned into zombies." Liang Zhiyu said lightly.

They quickly dismantled the liquid experiment chamber and placed it in the aisle. The human corpse inside did not react at all.

Fu Chen walked up to Bai Qingqing and whispered, "These experimental subjects have no signs of life. Just put them down in a corner of the space."

"Yeah." Bai Qingqing nodded. She felt a little relieved after hearing what Fu Chen said.

The liquid experimental chamber was placed in the spaces of the two girls respectively, and the group continued to walk deeper into the research institute. Dismantling the experimental chamber delayed them, and they had to find the source of the virus as soon as possible.

Everything went as planned, and soon everyone arrived at the laboratory where various virus sources were stored. Liang Zhiyu assisted Li Jin in searching.

Fu Chen and Xiao Yang were on guard outside, Bai Qingqing and Bai Tiantian stayed in the laboratory, and the two put the virus and vaccine they found into the space.

Time passed by minute by minute, and the waiting time is always hard to endure, but no one spoke and just did their own thing quietly.

Finally, Li Jin and Liang Zhiyu came out.

Bai Qingqing asked, "How is it? Did you find it?"

Li Jin was silent for half a second, then told her the bad news, "There are thousands of virus sources here, all of which are recorded in numbers. I can't tell which one is the zombie virus for now."

"How could this happen?" Bai Tiantian made a sad sound.

"Don't be discouraged. Take these viruses away and study them one by one. It just takes more time." Liang Zhiyu said calmly, "Let's go."

The City of Death ended just like that. Bai Qingqing felt a little disappointed because she didn't find the source of the virus that was rumored to be able to end the doomsday. She also had a side quest to do, which was to help Li Jin find clues related to the virus.

The system did not send any signal that the mission was successful. Does that mean that there is no zombie virus among the thousands of virus sources?

There are scientists in the five major bases. They have captured zombies to study viruses. Their bold and dangerous behavior is concealed from the survivors in the bases to prevent human panic.

However, after several months of research, scientists discovered that the zombie virus was not as easy to develop a vaccine as they had imagined because the virus mutated inside the zombies.

Researchers realize that humans are evolving, zombies are evolving, and all living things are evolving, which means that viruses are also constantly mutating, and they are powerless to change.

Only Li Jin is determined to find the source of the virus, perhaps he can develop a vaccine to eliminate the zombie virus.

After searching the entire research institute without finding the source of the zombie virus, the group had no choice but to return the way they came and leave this dangerous place.

As soon as they walked out of the laboratory, Fu Chen suddenly made a gesture, and everyone immediately tensed up. There was danger!

Fu Chen used his psychic ability to sense the strange creatures, frowned, turned around and looked at them, and said, "Li Jin, follow Xiao Yang, Bai Tiantian, follow Liang Zhiyu, Qingqing, come to my side."

"There's something outside. Be prepared to break out."

Just as he finished speaking, there was a strange sound like a baby crying, followed by a loud rumbling noise, and the whole laboratory was shaking.

Bai Qingqing hid behind Fu Chen, sweat beading on her forehead. She thought of the monster she had seen in Wudu. It was that monster that almost forced the team into a desperate situation.

It's not a zombie, nor a mutated plant or animal, but a strange creature that is difficult to deal with even with superpowers.

Various breaking sounds were heard, and the laboratory was severely damaged. Bai Qingqing held her breath and saw the ceiling in the distance through the faint light. An extremely huge monster was climbing and searching around on the ceiling, as if looking for something.

The monster let out a sharp and weird cry, shattering the glass jar, which crackled and shattered all over the ground.

After waiting for a while, the monster crawled very quickly in another direction, and everyone quickly came out from the corner and quickened their pace towards the evacuation route.

Fu Chen held Bai Qingqing's hand and ran with her tightly.

The six people in the huge research institute were like a few small black dots moving continuously on the map.

Halfway through the run, Fu Chenjun's face darkened and he said coldly, "Take another route."

He noticed that there was a level 5 zombie on the blue line leading to the lobby of the research institute. The escape route was not suitable for fighting, so he could only evacuate to another place.

Just as they changed the route to the fourth floor, a roar of monsters was heard. The sound waves shook the walls and the destructive power was astonishing. Everyone was staggering and unsteady. In the sight, a huge monster opened its bloody mouth and rushed towards them.

"Disperse!" Fu Chen shouted.

Everyone dodged quickly, but the monster missed and turned around to rush over.

"Bang, bang, bang!" The sound of bullets was heard. Several people aimed at the monster's head and shot at it, but they failed to hurt it at all.

Xiao Yang said anxiously: "Brother Fu, this monster is the same as the monster in Wudu. Guns can't penetrate it."

Liang Zhiyu threw away his gun and swung a gust of wind. "We can't fight it for long. Let's leave the institute first."

The monster was hit with all his strength, and it flipped over several times and rolled far away, roaring angrily.

Fu Chen rushed over and grabbed Bai Qingqing's hand, "Let's go!"

The stones blocking the way were blasted away by Fu Chen's lightning power. Several people hurriedly ran in the smoke and fled along the planned route. The monster caught up with them from behind, and its huge body was blocked by the narrow corridor. Furious roars came from behind.

Everyone rushed to the negative third floor, but encountered zombies again on the blue escape route. A large number of zombies crowded in the passage, roaring and biting towards them.

Fortunately, Liang Zhiyu planned a third route, and finally half an hour later, everyone successfully returned to the ground hall of the institute. After rushing out of the hall, they were faced with zombies like a tide.

Ordinary zombie teams don't need to be afraid, they can just ram and leave with their modified cars, but...

Fu Chen looked through the group of zombies at the monsters standing on a tall building in the distance. Several tall monsters with human appearance were staring at them with eerie green eyes. In front of these high-level zombies stood a reserved man.

-Zombie King.

This scene was like an epic meeting.

Bai Qingqing's heart was pounding as if it was about to jump out of her throat. The most terrifying scene appeared. The team encountered the legendary Zombie King and his army.