As soon as Ning Yu left, the laboratory hall instantly darkened. Only a few emergency lights were still on.

It seemed that Ning Yu had taken the energy factor into consideration when designing this laboratory. Sinan looked around and thought about the possible electric circuit. Suddenly, he saw Dr. Cheng walk to the corner and pick up the handgun that Ning Yu had thrown away.

He walked back and did not dare to look at Sinan. He lowered his head and tried to aim the handgun at the steel chain in Sinan's hands.

Sinan asked, "What are you doing?"

Ning Yu did not take the handgun with him when he left. With his intelligence, he should not have forgotten about it. Instead, he was sure that Dr. Cheng would not dare to break the handcuffs for Sinan. Otherwise, the first thing Sinan would do after he was freed would be to strangle Dr. Cheng to death.

"Dr. Ning Yu showed me the results of his preliminary research on the vaccine," Dr. Cheng said in a low voice as he pulled the chain awkwardly. "He told me that he needed your serum to realize this set of plans for the development of a vaccine for the Evolution Virus. I advised him to tell you directly to get your cooperation …"

Dr. Cheng clumsily loaded the gun and said, "But he refused. He said that you must have known that you had antibodies when you were bitten the first time, but you never told him. Therefore, he was very doubtful about your willingness to donate blood … Also, he said that compared to him, you must trust Captain Zhou more. Since Captain Zhou was stubborn and wanted to find the government, he would definitely take you and die in the vast sea before he found the non-existent government. In that case, the only hope of developing a vaccine would be cut off …"

Sinan repeated, "What are you doing?"

Dr. Cheng was sweating profusely. He gritted his teeth and said, "Don't move. Wait for me to break the handcuffs!"

Sinan said coldly, "Before you break the chain, you will break my hand first."

As he said that, he gritted his teeth and struggled. The veins on the back of his left hand bulged, and the steel chain made a creaking sound!

Dr. Cheng was dumbfounded as if he had seen a monster.

After a few long seconds, there was a cracking sound!

The armrest of the recliner suddenly broke, and half of it flew out on the spot!

Sinan's left wrist was hung with the chain and the other half of the armrest. His wrist was bleeding profusely.

But he didn't care about it at all. He licked the blood clean and took the gun from Doctor Cheng's hands. Bang!

Bang!

Bang!

Four shots were fired, and his hands and feet regained their freedom.

"You, you, you …"

"What?" Sinan said coldly and threw the empty gun away. "You don't have to explain."

Doctor Cheng stood there with his head lowered. After a while, he let out a long sigh. His voice was so soft that no one could hear it except for himself.

"… Sorry."

To his surprise, a voice came from not far away. "It's okay."

Dr. Cheng raised his head abruptly, only to see Sinan walk to the side of the test bench and flip through Ning Yu's notes. Without raising his head, Sinan said, "You don't need to explain. I forgive you, but I will never trust you again.

That's it. "

Sinan put away Ning Yu's notebook and rummaged around the test bench. After a while, he finally found what he was looking for in the wastepaper basket — a sparkling ruby earring.

Sinan didn't know whether to praise Ning Yu's intelligence or Ning Yu's arrogance. He pressed the GPS device, put on the earring, and looked around to find something valuable to take away.

However, Sinan's biochemical knowledge was limited. After a cursory look, he only found that everything was valuable.

Reagents, powders, various utensils, and even a few pieces of paper with random drawings and words hidden fleeting inspirations and clues. It was difficult to distinguish which was more important.

— — As Ning Yu said, he was a murderer, but he was also a murderer with terrifying wisdom.

Sinan frowned. Suddenly, he heard a vibration in his ears — the GPS device had received a signal!

A sharp alarm came from the ground. It became dull and unclear, echoing in the underground base over and over again.

The guards rushed to organize their equipment and rushed to the ground. Their footsteps rushed through the corridor, and no one noticed Yan Hao and Guo Weixiang in the shadow of the corner.

Yan Hao made a gesture, pointing to his earring and then to somewhere in front of him.

Guo Weixiang nodded silently. He understood what Yan Hao meant — the GPS device had received a signal, and Sinan was not far away.

The footsteps of the guards gradually faded away. Yan Hao and Guo Weixiang looked at each other and tacitly moved out of the corner of the corridor at the same time, sticking close to the wall and moving forward quickly.

Their equipment weighed more than 30 kilograms, but their footsteps were so light that they could barely make a sound.

After passing through several corridors, the vibration of the GPS device became more and more obvious. Finally, at the end of the long underground corridor, there was a slight sound, "Beep —"

Under the dim emergency light, a dark alloy door was hidden in the shadow. It was almost impossible to see it if one didn't pay attention.

Yan Hao gently knocked on the door. There were three long and two short pauses between each knock.

In an instant, Sinan's voice came from inside the door, "Zhou Rong!"

"…" Yan Hao covered his face under Guo Weixiang's sympathetic gaze. He wanted to cry but had no tears, "It's me, Yan Hao."

Sinan: "…"

"Who's there!"

"Don't move. Raise your hands!"

Suddenly, the guards roared at the end of the corridor. Yan Hao was stunned, "No way!

Why am I so unlucky? "He then told Guo Weixiang," Open this door! "

Sinan: "No, no, wait!"

Yan Hao raised his gun and fired. Several guards scattered at the same time to dodge. Instantly, they exchanged gunfire!

Guo Weixiang looked around for the door lock, but the alloy door seemed to be inlaid in bricks. The edges were smooth and seamless. Only a fingerprint control key was installed on the wall next to the door frame.

At this time, the situation was urgent. It was impossible to find someone who matched the fingerprint to unlock the door. Guo Weixiang quickly took out a grenade from his tactical backpack and shouted, "Sinan!

Back off! "

Sinan: "No!

Don't destroy this door!

Listen to me … "

Boom!

Bricks and stones flew everywhere, and dust flew everywhere. The entire experiment hall shook violently, and a gap that was half a person wide was blasted open at the joint between the alloy door and the wall.

Sinan rubbed his eyebrows helplessly. He had no choice but to push Dr. Cheng through the gap and then crawl out of the door. He heard Guo Weixiang ask in a loud voice, "Dr. Cheng?

Why are you here? "

Dr. Cheng: "It's my fault, I …"

Sinan said flatly, "Don't ask!

He was kidnapped and brought here! "

Several bullets hit the wall and splashed bright sparks in the darkness.

Yan Haofei quickly leaned forward and pulled out a magazine of bullets. He shouted, "Go!

Special alert outside, the base is surrounded by zombies! "

Guo Weixiang pushed Sinan and Dr. Cheng into the bunker and rushed forward against the rain of bullets. He picked up a mini submachine gun and joined the battle.

With his support, Yan Hao's pressure was relieved. The guards at the other end of the corridor were immediately defeated and ran out.

Guo Weixiang ran after them.

"Wait!

Xiangzi! "

Suddenly, Yan Hao saw the guards run into the next corridor. He turned around and pressed a button on the wall. Then he threw something in the direction of the corridor. It rolled on the ground.

Yan Hao didn't even think about it. He jumped straight up and shouted, "Be careful!"

With a loud bang, Guo Weixiang was pushed to the ground by Yan Hao!

At the same time, the thing stopped rolling and stopped a few meters in front of Guo Weixiang.

Grenade?!

In an instant, Guo Weixiang's heartbeat almost stopped. There was only one feeling in his consciousness — Yan Hao protected him under his body.

The next second, the grenade began to leak gas. "Bzzt …"

"Shit!" Yan Hao coughed violently and cursed, "Tear, tear gas bomb!"

He didn't know if this homemade tear gas bomb was made by Ning Yu. The yellow-green gas instantly spewed out and quickly filled the entire corridor in the darkness.

Yan Hao and Guo Weixiang, who were closest to it, were the first to bear the brunt. The irritating gas sprayed all over their faces and they couldn't even stand up on the spot.

Sinan covered his mouth and nose and rushed to the end of the corridor like a cheetah. However, it was too late. In front of him — Clang!

It was the heavy sound of metal colliding. The heavy fence fell from the sky and landed firmly on the ground, close to the tip of Sinan's nose. It closed the long corridor!

The guards on the other side of the fence quickly retreated. Sinan subconsciously reached for his gun, but he touched nothing — he didn't have a weapon.

"Give me a gun!" he roared. However, when he turned around, he knew it was impossible.

Yan Hao and Guo Weixiang were in the center of the leak of the irritant. The area was completely covered by the yellow-green gas, and the gas was still spreading toward them. It would only take a few seconds for it to reach them.

When people were in a hurry, their minds would often go blank and they couldn't think. However, there were also people who could think faster in an emergency. Sinan belonged to the latter category.

He stretched his hand out of the gap between the fence and touched the wall outside. He felt a box of switches and knew that this was the electronic terminal that controlled the metal fence.

This design was very different from the security measures used in domestic research institutes. It must have been added by Ning Yu when he modified the laboratory. Sinan Xin vaguely felt a sense of familiarity and realized that he had seen it before.

White Eagle Base.

After Ning Yu escaped from the White Eagle Base, he brought some of the design ideas back to China and brought them to this secret underground experimental site.

If it was controlled by an electric circuit, the metal fence would fall down after the power was turned on. As long as the power was turned off …

The yellow-green gas slowly floated over like a demon. Sinan Ju coughed violently. He was dizzy and couldn't think anymore. He gritted his teeth and smashed the box of switches!

He couldn't see the switch because of the angle of his vision. However, he was familiar with it since he was young, so he didn't need to use his eyes to see it.

In the nick of time, Sinan's fingers accurately pulled out a wire inside the wall and tore it apart instantly.

Zap!

Zap! Zap! Zap! Zap! Sinan was sent flying!

With a bang, Sinan fell to the ground. His pupils dilated rapidly, and his body twitched slightly.

The metal fence hummed helplessly and slowly opened. The irritant gas floated out.

"Cough, cough, cough, cough …"

In the dim light, a slightly plump figure stumbled over. He was coughing so hard that tears and snot flowed down his face. He fell to his knees beside Sinan and checked his breathing and heartbeat. Then, he immediately began CPR and chest compressions.

After a while, Sinan coughed violently. He gasped for breath and twitched for a while before he finally regained consciousness.

"I'm, I'm fine …" Sinan's hands trembled as he supported himself on the ground. He supported his upper body and blocked Doctor Cheng who was about to come up again. "Don't … don't. Speak properly. Don't touch me …"

Doctor Cheng obviously didn't get the joke of the Special Forces. He asked anxiously, "Are you okay?

Do you know how many volts it is? How dare you touch it?! "

Sinan said helplessly, "I'm used to it …"

Ning Yu shouldn't have been able to make real tear gas. Otherwise, it would have been much more lethal than this. Even so, they were still in a lot of trouble.

Doctor Cheng helped Sinan, who had gone limp all over, out of the aisle. Then, he covered their mouths and noses and dragged out Yan Hao and Guo Weixiang respectively. He laid them flat on the ground and fanned them vigorously.

A few minutes later, they both regained consciousness. They coughed so hard that tears and snot flowed out of their eyes. Guo Weixiang almost vomited bile.

Sinan briefly explained what had happened. He skipped the part where Doctor Cheng sprayed him with ether and focused on the progress of Ning Yu's experiment and his speculation about his serum.

Guo Weixiang finally finished vomiting. He wiped his mouth and sat on the ground, exhausted. After listening to the story, he cursed angrily, "This psycho, he's really …"

"His laboratory is very important. It stores a lot of precious information. That's why I told you not to break down the door by force."

Sinan stood up with the help of the wall and moved his ankles. "But it's too late now. You've broken several of his precision instruments. Go back and prepare to be beaten up by Zhou Rong."

Guo Weixiang, "…"

Yan Haoping lay on the ground, unable to move. He looked at the dark ceiling above his head and weakly ordered, "Very good. When we retreat, we must take Ning Yu with us.

Also, from now on, protect Sinan. Don't play games like touching the electric door with your bare hands. What if you turn into Thunderbolt Beibei? We're counting on you to save the world. "

This was supposed to be exciting news. However, after being hit by Ning Yu's tear-gas bomb, no one was excited. They didn't even have the strength to speak.

Sinan walked through the corridor with the help of the wall. He went to the laboratory to collect all the information and documents he could take with him.

The others rested for a few minutes until Sinan Hui came. They stood up shakily, packed up their guns, and prepared to leave.

"Ning Yu must still be on this floor. Let's find him and take him away. We'll go up and meet up with the others."

Yan Hao stamped his numb feet and said, "Captain and the others should be fighting against the zombies outside. We'll try to catch Chen Yajing and then go to support them.

Do you have any objections? "

No one had any objections. Guo Weixiang suddenly said thoughtfully, "Team Flower."

Yan Hao, "…"

"I didn't know you loved me so much. You thought it was a grenade and risked your life to protect me …" Guo Weixiang was so moved that he wiped his snot and came up to hug Yan Hao. "Team Flower, you're so nice. I really …"

Yan Hao's face turned pale. "Go away!

You can talk, but don't touch me! "

A group of people walked into the complex underground space. At the same time, a Jeep stopped behind the bushes at the entrance to the ground above them.

Zhou Rong got out of the car with a gun pointed at the back of Wan Biao's head. Not far away, a nanny van sped over and stopped in front of the building. Then, two of his men lifted Chen Yajing's wheelchair out. One of them stood guard outside, while the other pushed her into the building.

Zhou Rong said softly, "If you dare to make a sound, you're dead. Do you understand?"

Wan Biao stared straight ahead and nodded. Then he suddenly raised his breath. "…"

Before he could make a sound, Zhou Rong had already noticed that his chest was expanding and he was about to scream. Zhou Rong held his mouth open and then knocked him out with the butt of his gun.

"You refuse a toast only to be forced to drink a forfeit," Zhou Rong said coldly. He dragged Wan Biao, whose face was covered with blood, and slowly put him down in the bushes.

Chen Yajing had already been pushed into the building. Zhou Rong thought for a moment, bent down, and sneaked forward. Like a tiger on the hunt, he silently went behind the guard and gave him a chop!

The guard didn't even know what was going on and fainted on the spot.

As usual, Zhou Rong carefully put him down and then followed Chen Yajing into the building.

This was the laboratory building of the research institute before it was abandoned. When Zhou Rong followed them in, Chen Yajing was entering the elevator. The elevator door slowly closed, and then the number showed minus two.

It seemed that Wan Biao was right about the secret underground laboratory. But what was Chen Yajing doing? Looking for Ning Yu?

Zhou Rong raised his eyebrows and went straight into the safety corridor. He rushed down two flights of stairs like the wind. When the elevator door opened with a "ding!", he flashed into the second floor of the basement.

The corridor in front of him was very empty, and there was no one around. Only the emergency lights were flashing dimly.

Chen Yajing's men pushed the wheelchair forward quickly. Zhou Rong followed them for a few minutes like a ghost. He saw them turn into a room at the bottom of the winding corridor.

"Thank you," Chen Yajing said softly, "Help me call Ning Yu here."

The man answered and went out. As soon as he walked out of the door, he felt a strong wind in the darkness. "What —"

He only had time to make a short sound before he blacked out and lost consciousness.

Chen Yajing suddenly turned around. "Who is it?"

At the door of the underground office, her man slumped to the ground. Then Zhou Rong's slender and strong figure flashed in the darkness. He held a gun in his hand, and the muzzle was firmly nailed to Chen Yajing's forehead.

"Don't move. Don't scream," Zhou Rong said calmly. "Where is Sinan?"

The moment Chen Yajing saw Zhou Rong, her whole body froze. But after a few seconds, she relaxed again and gently leaned back in the wheelchair.

"Unit 118 is indeed worthy of its name.

Is Wan Biao still alive? "

"He's alive."

Zhou Rong said, "I'm good at killing people, but I don't kill people randomly. Unless you do something irreversible."

Chen Yajing shrugged. "You think too much, Captain Zhou. Nothing irreversible has happened.

Noah is safer here than you can imagine. Even if I'm bitten to death by zombies after the base falls, he and Ning Yu won't be hurt. "

Zhou Rong scrutinized Chen Yajing from head to toe without hiding anything. The weak and disabled woman looked back calmly without avoiding his gaze.

After a while, Zhou Rong narrowed his eyes slightly, as if he temporarily believed her words. He pointed the muzzle at her and quickly scanned the room under his feet.

The room was not big, only about twenty or thirty square meters. White curtains hung from the ceiling, half blocking an emergency bed in the corner.

Zhou Rong had all kinds of medical and biochemical equipment placed against the wall. In front of Chen Yajing was a test bench full of utensils.

It was a bit like a mixture of an emergency room and a biochemical laboratory.

Zhou Rong walked forward and confronted Chen Yajing across the test bench. His fingers, wearing sniper gloves, randomly groped around on the bench and found an open notebook.

He thought it was the experimental record of Ning Yu, the psychiatrist, but when he picked it up and glanced at it, it turned out to be neat lines of pen writing. Each line recorded a person's name and corresponding date.

The notebook had ten lines per page, and there were already three thousand pages written.

"What's this?" Zhou Rong asked in a low voice.

Chen Yajing replied, "* * * the list of experimental subjects and the date of death."

Zhou Rong flipped through the pages one by one. When he reached the first page, he suddenly caught a glimpse of an empty line with the date of death.

The corresponding name on that line was Chen Yajing.

Zhou Rong's gaze changed slightly. He heard Chen Yajing's hoarse and gentle voice.

"It's dark here. You may not be able to see clearly.

The names written in blue ink are volunteers, mainly the leaders of the original research institute and the backbone of scientific research. The black ink is a part of the opposition that split out at the beginning. They were captured in several armed fights, as well as some unfortunate people who were caught alone. "

"The former has a total of sixty-three names, and the latter has a total of thirty-two names.

Ning Yu wrote down their names. There are a total of ninety-five people. Their corpses have become the cornerstone of today's vaccine research. "