Lin Fan held his head and thought hard for a while. But just thinking blindly wouldn't lead to any conclusions. Then, he opened up this large pile of materials, hoping that by sorting through these materials, he could find the answers.

  On the first page of this detailed material, it was clearly written in black and white: "Experiments on several issues such as physiological cells and life and death." Below it was also written an abbreviation: "SAD Project." It turned out that these three letters were the abbreviation in English.

  Lin Fan then flipped through the content inside the materials. These materials were extremely detailed. If he were to read them word by word, one night wouldn't even be enough. What's more, it contained all kinds of experimental data and theories. Only after trying everything according to the description in the materials could the accuracy of the materials be determined. For now, Lin Fan just casually flipped through them and got a general idea of this SAD Project, glimpsing just the tip of the iceberg.

  Lin Fan closed this stack of materials, rubbed his eyes, forced himself to perk up, and looked up at the powder injection in front of him. According to the description in the materials, the powder inside the powder injection was a drug extracted and purified from the brain marrow of zombies. And the raw material needed was actually the never-ending zombie virus! The zombie virus only existed in the bodies of zombies. So, Lin Fan could clearly realize that originally, the zombies in the fourth room of the basement laboratory on the fifth basement floor were the zombies specially cultivated by Wang Yuan in order to develop the drug called Corpse-Eliminating Spirit!

  For zombies to survive, they also needed food. Well, there was only one source of food for these zombies, and that was corpses!

  Thinking of this, Lin Fan's mind was in a mess. According to this logical reasoning, a terrifying conclusion could be drawn: Wang Yuan had started cultivating zombies a long time ago. His purpose of personally feeding the zombies was to use this virus to wake the dead up, so as to cure human diseases and achieve his ideal of eternal life for his descendants!

  "No, it's impossible. This is too crazy. In pathology, a virus is a foreign body that parasitizes on other organisms. How can it be controlled by others? Professor Wang was so learned and experienced. How could he not understand such a simple truth? Could there be something I don't know about in the middle of this?"

  Lin Fan calmed down, scratched his head in a flurry, and suddenly, he thought of a key point. Immediately, he stood up, then quickly shook his head again, hardly believing the fact he had thought of, and muttered to himself: "No, no. That giant zombie, that giant zombie has obvious differences from ordinary zombies in all aspects. Its flexibility is obviously close to that of ordinary people. What's going on? It's like a newly born baby. Although it doesn't have its own consciousness, it can move its body flexibly. More importantly, it can feel the intense pain of being burned by concentrated acid! None of these could happen to ordinary zombies!"

  Lin Fan quickly sat down again, opened that stack of materials, and continued to flip through them randomly. Unfortunately, there were several CDs behind. Regarding the research materials on that giant zombie, there was no separate introduction! Perhaps the introduction to the situation of the giant zombie was interspersed within some file materials.

  Lin Fan stretched himself, looked at the alarm clock on the table, and it was already five o'clock in the morning. Alas, a wave of tiredness immediately hit him. There were still too many questions that he didn't understand. He couldn't keep asking like this. He'd better go to bed and have a good rest for a while.

  Lin Fan put the materials back into the drawer and then fell onto the bed and fell into a deep sleep.

  ...

  "Ding, ding, ding." A burst of phone ringing woke Lin Fan up from his nightmare.

  Lin Fan opened his sleepy eyes, looked at the sky outside, and saw the sun hanging in the middle. Immediately, he thought of what had happened last night in his mind. The ringing of the phone pulled him back to reality. "Could it be that someone is already wanted me now?"

  Lin Fan reached out and picked up the mobile phone beside the bed. Looking at it, he saw that it was Ying Guihua, the wife of Mayor Cai. The couple of Cai had always taken good care of Lin Fan, and Lin Fan also respected the two elders very much. When Cai Tingting was on her deathbed, Lin Fan had sworn that he would respect and take care of Tingting's parents like his own parents for the rest of his life.

  "Hello, Aunt Ying. How are you?"

  "Lin Fan, Lin Fan, where are you now?" On the other end of the phone came Ying Guihua's anxious questioning voice.

  "I'm at home now, Aunt Ying. What's happened? Don't worry. Take your time and tell me." Lin Fan quickly turned over and sat up.

  "Woohoo, woohoo. Something terrible has happened." Ying Guihua started crying bitterly on the phone.

  "Aunt Ying, where are you now? I'll come over right away."

  "Bang, bang!" At this time, someone was suddenly knocking hard on Lin Fan's door.

  "Who is it? Just a moment. I'll be right there." Lin Fan got up and was about to walk towards the door when he heard Ying Guihua's anxious voice on the phone: "Lin Fan, don't open the door no matter what. Look through the peephole to see who it is outside."

  "Oh, Aunt Ying, wait a moment. I'll come to your place right away." Lin Fan didn't take it seriously and walked to the door. However, Ying Guihua didn't tell him her specific location but told Lin Fan not to open the door in a hurry. This was the second reminder. Lin Fan was very curious. But since Aunt Ying had said so, he'd better be obedient. He bent down and looked outside through the peephole.

  Lin Fan's rental house was in a courtyard community and was located on the second floor. Around here, most of them were shared rental houses for people working in City S, and the people living here were quite mixed.

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  And at this moment, standing outside the house was a zombie! It was shaking its head and banging on the door hard.

  Lin Fan staggered back two steps, and his mobile phone almost dropped. He quickly forced himself to calm down, but he was extremely panicked in his heart. How could there be a zombie here?

  "Ah!" Suddenly, a woman's scream came from outside the house. Judging from the sound, it should be two or three hundred meters away. This scream immediately attracted the zombie's attention. The zombie in front of the door shook its head and quickly walked towards the direction of the sound source.

  Lin Fan looked down at the bayonet beside the bed. He had casually put it on the cutting board when he came back last night. At this moment, it seemed to emit a strange light. Lin Fan clenched his fists tightly, walked forward, picked up this bayonet, and immediately picked up his mobile phone and asked, "Aunt Ying, Aunt Ying, where are you now? Are you safe?"

  "Brother-in-law, brother-in-law, I'm Su Minmin. I'm with Auntie now. We're at the Jimin Pharmacy opposite the Hongcheng Cinema. You have to come here quickly. We're surrounded."

  Su Minmin was Cai Tingting's cousin. Due to the big age difference, she didn't have a good relationship with Cai Tingting. Lin Fan didn't know this sister very well. She had just graduated from university this year. She came to City S these days, one was to visit her uncle and aunt, and the other was to ask her uncle, Mayor Cai, to help her arrange a job. This girl only trusted her family members and never seemed to trust outsiders. So things like finding a job needed Mayor Cai to solve them.

  Although Lin Fan hadn't married Cai Tingting, in Su Minmin's mind, he was her brother-in-law. The couple of Cai didn't agree with the title of brother-in-law, but they didn't explicitly oppose it either. It turned out that Mayor Cai himself had another plan and hoped that Su Minmin and Lin Fan could get together.

  "Ah. Okay. Wait there. Don't move. I'll come out right away." Lin Fan didn't have time to ask more questions. Now he also understood that the zombie virus hadn't been completely controlled but had spread out instead. Many citizens had unknowingly been infected with the zombie virus.

  Lin Fan simply tidied up the room, took the bayonet with him, then opened his safe, and put all of Professor Wang's materials inside. The situation was critical now. He could only temporarily store these materials. After understanding the situation outside, he would come back to get the materials.

  Lin Fan cursed secretly in his heart: "Damn it! How long has it been? In just half a day, the world has changed so much."

  Chapter 13: Charging with a Knife

  Lin Fan opened the door and found a puddle of dirty stuff in front of the door. The stench coming from this filth made Lin Fan quickly cover his nose. He closed the door, held his breath, and rushed out.

  The courtyard community seemed very quiet at this moment. Lin Fan felt that the atmosphere around him was a bit strange and thought to himself: "Didn't I hear a girl's scream when I was inside the house? Could she have run away?"

  When Lin Fan stopped to observe the surroundings, he didn't find any trace of the girl. Immediately, he quickly ran towards the entrance of the community. In a flash, he arrived at the entrance of the community. Lin Fan stood on tiptoe and looked towards the security room at the entrance of the community. He saw that a person had already fallen into a pool of blood, bidding farewell to life in a seemingly peaceful sleeping posture.

  When Lin Fan came out of the hospital, Zhang Meng, the nurse on duty at the hospital entrance, looked up and was very surprised: "Eh, Doctor Lin, you haven't left yet?"

  Lin Fan smiled awkwardly, went up to have a casual conversation with her, told a lie, and then walked out of the hospital gate.

  Around the hospital entrance, neon lights were everywhere. The whole night sky was as bright as day, with a brilliant starry sky and a prosperous scene. It was a peaceful and harmonious scene of singing and dancing. No one would have thought that such terrifying things were stored in the basement of this Municipal People's Hospital!

  Lin Fan stopped a taxi on the way and headed towards the direction of his rental house. In the car, the driver joked, "You doctors are really hardworking. You must have encountered some emergency cases, right? Why are you going home so late?"

  "Not too bad." Lin Fan smiled and was quite surprised at the driver's observation ability. He asked instead, "Master, I'm just a passerby at the hospital entrance. How did you know I'm a doctor?"

  "Hehe, I have a very sharp nose. I smelled the disinfectant on you."

  Lin Fan smiled and suddenly felt worried in his heart: "I stayed in that laboratory for a while. I don't know if there's the stench of rotting corpses on me."

  Lin Fan slammed the door shut, put all the materials in his wardrobe, then picked out a slightly old piece of clothing, changed into it casually, closed the door again, and then turned back towards the hospital.

  "Alas, Nurse Zhang, look at my memory. I forgot to take something and I'm back again." Lin Fan pushed the door open and walked into the hospital, smiling at the nurse on duty.

  Nurse Zhang Meng was in good spirits. It was already past two o'clock in the morning, but she was still playing a card game in front of the computer. When she saw Lin Fan coming back, she also smiled and replied casually, "I should have asked you to buy me a midnight snack if I had known you were coming back. What's so important? It's already past two o'clock. Couldn't you come and get it tomorrow morning?"

  Zhang Meng stretched her hands, rubbed her eyes, and then found that Lin Fan's figure had disappeared in front of her eyes in a flash. Zhang Meng looked at the back of Lin Fan disappearing and sighed in her heart: "Alas, what a nice boy. Why doesn't he have a crush on me?"

  Zhang Meng smacked her lips, with a disappointed look on her face. She put her hands into the two pockets in the front of her nurse's uniform and strode forward to see if the barbecue shop at the hospital entrance was closed.

  Lin Fan returned to his office, took out the key to the hazardous reagent room. The hazardous reagent room was full of dangerous chemical substances, including strong acids, strong alkalis, mercury, lead and other easily poisoned items.

  This was originally under the custody of two people. Lin Fan was a doctor in the laboratory department and wasn't too familiar with it. However, Lin Fan had been to the hazardous reagent room twice before. He had secretly watched the custodian's operation of the password and remembered it at that time. He had stored the password in his secret notebook.

  In the hospital, many drugs and reagents were under the mandatory control of the state. For example, psychotropic and narcotic drugs must have red and green prescriptions and be kept under the double-check custody of two people. And doctors without the prescription authority for such drugs were not qualified to prescribe prescriptions containing these drugs.

  When Lin Fan entered this hospital, he had already figured out all these situations. He could completely remember all the passwords just by taking a quick look. Yes, Lin Fan had an extraordinary memory and imitation ability.

  Lin Fan picked up the key and went directly to the door of the hazardous reagent room. He looked around and found that there was a hidden hole camera on the opposite wall, which was aimed right at the door of the reagent room.

  "Damn it, I can't care about so much." Lin Fan directly ignored the existence of the camera, took out the key, and opened the door right away.