[Team member: Master Atobe, dead. 】

　　[Team member: The name is really difficult to come up with, it has died. 】

　　The system prompt sounded in his ears, Wang Tanzhi quickly opened the game menu and looked, and the words "dead" were indeed displayed next to the names of the two people. After thinking for a while, Xiao Tan said, "Two big brothers, they probably died in the underground research institute of this building, right?"

　　"Oh? How did you see that?" Pan Feng continued walking, without looking back, and asked from his tone, he didn't really care about the life and death of those two people, it felt like...it would be fine if those two died Whether he is alive or not, it has little effect on his customs clearance. Of course, in terms of the combined strength of him and Hua Xiong, he can indeed afford this confidence.

　　"Think about it, one of them is level 14 and the other is level 12, at least they are better than me. Even I am not afraid of the blood wolf zombies on the street, and it is even less likely that they will die at the hands of such monsters. But if They also came to the Alab Building, and after seeing the schematic diagram of the ground floor, they went to the underground research institute..." He paused, then continued: "We haven't cleared that place yet, so there may be danger there, even There may be a BOSS, if they encounter a zombie werewolf..."

　　"Hmm... makes sense." Hua Xiong said, but listening to his tone of voice, he seemed to have thought of this a long time ago, saying "makes sense" was just a perfunctory sigh: "However, since everyone is dead, we There is nothing we can do by turning back now. Besides, we are already very close to the top floor, so let’s clear all the way to the top first, and then..."

　　"How about this." Xiao Tan interrupted him: "Two big brothers, you go to the top floor, and I will go back to the ground floor alone." He said, took the bat out of the bag (because he hadn't participated in the battle Xiao Tan even put away his weapon): "The remaining player is my friend, he may not have come to the building yet, but I think he will definitely come. I will go to the ground floor and wait for him , you can tell him not to go underground, come and reconcile with you first and then act.”

　　Pan Hua and the two stopped, looked back at him, exchanged glances, Hua Xiong shrugged and replied: "Okay, little brother, be careful, we will go ahead."

　　Xiaotan responded, then turned around and went back the same way. After turning around a corridor, he rushed into the fire escape stairs. At this moment, he didn't know that Feng Bujue was already in the underground research institute, nor did he know that he had made a mistake in judging the place of death of Master Atobe and Xiao Ming, but he was acting purely on his own inference.

　　After he walked away, Pan Feng suddenly said in a very serious tone: "The two players were at the same coordinate for a long time before they died, and that place is quite far from this building."

　　Hua Xiong replied: "Ah, I have also noticed that there will be no small bosses in that kind of place. Before dark, there will only be sporadic blood wolf zombies wandering around in the city. And... the interval between their deaths is only short. In just a few seconds, hehe... Unless they jumped off the building together, otherwise..."

　　"Is it really the 'derivative' that did it..." Pan Feng pondered: "It's so quick to attack the player... We should also speed up our actions to prevent the other two from coming into contact with the derivative."

　　"It's good that the little brother is gone, we can let go of our hands and feet. Anyway, the way back is relatively safe, and the monsters are basically cleared. He should be fine in a short time." Hua Xiong continued: "The man named 'crazy' The situation of the player who doesn't feel is not good, although the survival value is still 73%, but the problem is that he has been infected. The player will be judged to be dead when it reaches the mutation stage, we'd better get things done before that." He took a deep breath Let's say: "A total of four players will be placed in the queue, and the two who died will be ignored, but if three or even all of them die before completing the customs clearance, our work will be a failure."

　　Pan Feng nodded, "Well...that's right, I have to 'kill' Ashford quickly, as long as I enter 'that' plot line, I can clear the level soon. Anyway... let the players After sending out the script, we can concentrate on dealing with the 'derivatives' afterwards."

　　…………

　　Feng Bujue took the Winchester and walked in the corridor of the research institute. The lighting equipment here was working normally, and the number of zombies was not too many. Except for the one encountered outside the elevator door, the rest of the time encountered monsters. The frequency is similar to that on the ground, and you will encounter at most one or two corridors when you pass through three or five corridors.

　　The shotgun in Feng Bujue's hand was very useful in this narrow corridor. You only need to wait for the monster to get a little closer before shooting. You don't need to be too accurate with your marksmanship, and the battle will definitely be resolved. Anyway, as long as the hands and feet are hit, the limbs will be broken directly, and the body will fall to the ground. If the torso is hit, it will either fly upside down or be torn apart on the spot.

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　　He searched a fairly large area, and most of the electronic doors were able to open. There are only a few rows of iron brackets in many rooms, and the brackets are full of cardboard boxes, which are full of paper documents and file bags. Of course, I have read some documents, but the contents are basically meaningless, and many of them are similar experiments. In the report, the key content of the document has been obliterated with black bars.

　　There are also large computers in some rooms, with monitors all over the walls and tables, and inexplicable joysticks and buttons, and these devices are all damaged without exception, and they can't even be turned on. This kind of room is also worry-free, you can leave after opening the door and taking a look.

　　After many twists and turns, Feng Bujue finally found an electronic door with a higher security level. This door requires double scanning of iris and fingerprints to open, and the game also thoughtfully arranged an electronic door a few meters away from this door. Zombies in white coats...

　　Feng Bujue shot the zombie in the waist, and the monster was overturned to the ground, and its intestines spurted out immediately. Feng Bujue took out the bat in his luggage, and went there to smash the bones on the zombie's arms and knees. After he was done, he replaced the kitchen knife, pressed the zombie's face, cut off its head, and cut off the rest of the zombie's head. a palm. By the way, he also searched the zombie's clothes and pants, and only after confirming that there was nothing in his pockets did he finish counting.

　　After the scanning was completed, the electronic door opened. Feng Bujue threw the corpse's head and hands into the distance, and stepped into the door.

　　This is obviously a room related to the plot. On the wall facing the door, there is a huge metal gate, which looks exactly like the gate of a bank money vault. There is a row of glass pillars by the wall on the left, one meter high and about thirty centimeters in diameter. The inside should have been filled with liquid, but now the glass shell has been shattered, and almost all the contents flowed to the ground. It was a light green translucent liquid, and at this moment, there was still a large pool of green marks on the floor in that area.

　　Several computers in the room also lost their function, the screens were dark, and they could not be turned on. Next to an operating table, lay two corpses in white coats. Feng Bujue approached vigilantly, and observed for a while to confirm that the two were just ordinary corpses, not dormant zombies.

　　The two victims were men, one in his fifties, balding and wearing glasses, and the other with gray hair and a moustache, a few years older. The one with the top was shot in the head, and the mustache had a gunshot wound on the chest and abdomen. They did not appear to have been dragged after death, as indicated by the position and posture in which the bodies fell.

　　Feng Bujue recalled the situation of the shooting in his mind... The murderer should be someone they are familiar with. He entered the laboratory through the electronic door, suddenly drew out his gun, and pointed it at the unsuspecting man at a very short distance. The bald man pulled the trigger, and the bullet entered the head, killing him with one shot. The bald man was originally sitting behind the console, but after he died, his body slid off the chair and fell to the ground.

　　At the same time as the gunshot, Mustache, who was a few steps away from the console, turned his back to the door. When he heard the gunshot, he turned around in astonishment. Unfortunately, the murderer didn't give him any chance to react, and immediately fired two shots in a row. The gun shot him dead. When Mustache fell down, his body leaned forward. Before he died, he grabbed the edge of the console with his hands, buffered it a little, and then fell sideways.

　　Looking at the corpse's posture, blood stains, and expression, Feng Bujue made the above judgment. As a reasoning novelist, he should be familiar with the thinking of inferring the crime process from the crime scene. He has deduced similar plots in his mind countless times, and sometimes he will do related experiments in order to write some "exquisitely arranged" secret room murders. It sounds troublesome, but after all, it is a mechanism that has been thought out after racking your brains. If it is proved that the feasibility is too low in reality, it will be meaningless.

　　"Heh..." Feng Bujue looked at the two corpses, and smiled at that moment: "They are not infected in this way, those two must have been injected with serum..." Facing the dead corpses, he said to himself: "There are so many people in this base, and only core researchers who deal directly with viruses all day will be treated like this."

　　He reorganized the process of the incident in his mind, thinking: No matter what the purpose is, let's assume that the murderer is also a researcher who has been injected with serum. He killed the two people, smashed the container containing the virus stock solution, then left the room with a small amount of liquid, returned to the corridor and killed some more people, and used the virus stock solution to mutate the corpses... Then escaped from the research institute, Let this infection spread to the ground, but for some reason, all the people on the ground turned into another kind of zombie.

　　Or... the murderer failed to escape from the research institute at all, but was subdued or even killed by the guards. The virus that produced blood wolf zombies outside the research institute had nothing to do with the one here, and they were two completely different things.

　　Feng Bujue thought of this, and thought of another question, and muttered: "The guy at the door also has the authority to enter this room. He should also be one of the researchers. He should have been injected with serum, but why did he turn into a zombie..."

　　Feng Bujue needed more information and clues to figure out the situation here, so he went to check the two corpses again, and found a key in Mustache's pocket.

　　There was a desk a few meters away. After getting the key, Feng Bujue walked over without thinking, opened the drawers of the desk one by one, and found two syringes, a pile of white paper, some stationery, a stapler, pins, Sticky notes and other sundries... Only the bottom drawer was locked. He tried the key he had just found, and it opened.