"Generally speaking, in order to avoid radiation, the building's motor system and backup motors should be underground, such as the basement minus, minus 2 and the like." Jiang Jinyuan thought about it for a while and replied to Liu Qian.

"So we should go underground instead of up now?" Liu Qian confirmed to Jiang Jinyuan.

"Yes." Jiang Jinyuan nodded.

"Okay, let's go down, find the building's backup motor, turn on the power to start the building's main brain, so that you can connect to the main system of the laboratory and download the building's layout information." Liu Qian confirmed the plan of action to Jiang Jinyuan, and then walked down the stairs down.

Jiang Jinyuan followed closely behind Liu Gan, looking up and down the stairs a little nervously while going downstairs, although Liu Qian walked in front, he was still very insecure, who knows when a large group of zombies will suddenly rush out of this dim stairwell? At that time, I am afraid that no matter how brave Liu Qian is, he can only take care of himself, and he will not be able to protect him at all, right?

However, the stairwell of the fire elevator has been very quiet, and when I went down to the first floor after three turns, I didn't encounter any zombies. After going down to the first floor, the handheld computer automatically adjusts to show the distribution of zombies on the same horizontal plane, and you can see that there are at least dozens of zombies wandering in the hall on the first floor, and there are three outside the iron door closed by the fire ladder, fortunately, the two of them do not need to enter the hall on the first floor now, but continue to go down and walk down to the parking lot on the negative floor of the building.

The weather was not good, the light was very dim, and the more you went downstairs, the dimmer the light became, and everything around me became more and more gloomy, as well as the unconscious wails of the zombies from time to time, which made people's nerves involuntarily tense.

What secrets are hidden in the underworld? Or is there any danger? All the unknowns are hidden in the darkness, waiting for the two to explore.

Liu Qian took out the flashlight he had found earlier, and went down the stairs cautiously with a light on, judging from the display of the handheld computer, there were at least four or five zombies wandering around the exit of the stairs on the negative floor.

Although Liu Qian has now been promoted to level 5 and his strength has improved a lot, it is completely a piece of cake to deal with four or five zombies at a time, but it is still not ruled out that in a small and dark space, the possibility of being accidentally caught by zombies is not ruled out. In addition, he also has to protect Jiang Jinyuan and serve as a guide in the laboratory to find treasures, so even if he only faces a small number of zombies, he still has to be extremely cautious.

After going down to the negative floor, the stairs can still continue down, and it seems that there are not only negative floors underground, but also negative second floors or even deeper.

The negative floor is the parking lot, and Jiang Jinyuan estimated that the motor and the spare motor may not be on the negative floor according to the characteristics of the architectural design of the Sanyu Company, so it is recommended that Liu Qian continue to go down. Of course, Liu Qian didn't have any opinion on this, so the two continued to go down, down to the negative second floor, and then the stairs reached the bottom, and they couldn't continue to go down.

If there were still buildings deep underneath the lab, the stairs down would certainly not be here.

After getting out of the fire ladder, there is a long corridor, and after coming here, there is already the kind of pitch darkness around him, even if Liu Qian has strengthened his vision, he can't see things clearly in this pitch darkness at this time. Just like a cat that can focus its eyes on things in the dark, if it comes into absolute darkness, it will also become blind and unable to see anything, because there is no light around it that can be used.

Now Liu Qian can only rely on the faint light of the flashlight to observe the situation around him. But the light of the flashlight will also attract the attention of zombies, so Liu Qian will not keep the flashlight on, occasionally turn it on and look around, and then continue to move forward in the dark.

This kind of pitch blackness that he couldn't see his fingers made Jiang Jinyuan's scalp tingle for a while, and he had to reach out and grab one of Liu Gan's arms like a child relying on an adult, so as not to accidentally get separated from Liu Qian in the dark.

groping his way forward in the darkness reminded Liu Qian of some horror games he had played before, and found the feeling of knowing that there was danger hidden in the dark, but he had to move on.

Fortunately, with the help of the handheld computer, it will not be blacked out, and you can only let the monsters in the dark attack.

According to the detection of the handheld computer, there were no zombies in the corridor after the second floor of the stairs came out, only two zombies outside the iron door at the end of the corridor. In addition to the rest of the entire negative second floor, there is unexpectedly not a single zombie, which seems to mean that as long as the two zombies outside the iron door at the end of the corridor are killed, the entire negative second floor will be safe.

Maybe it's safe, I don't know why, Liu Qian always has a faint uneasiness in his heart, the uneasiness that great danger is coming. But now that you're here, you can't just leave with nothing, right?

The iron door at the end of the corridor doesn't need a key, twist the door lock and open it, the sound of the iron door opening attracted the two zombies near the iron door, but these two zombies don't pose much threat to Liu Gan, after opening the door and shining a flashlight on them, Liu Qian rushed forward two steps and kicked one of the zombies away, and then the fire axe slashed and chopped the head of another zombie who came closer.

The zombie that was kicked away was kicked off and could no longer walk upright, but it crawled on the ground and approached Liu Gan again, Liu Qian took a few steps forward and stomped on the zombie's neck.

Judging from the clothes of these two zombies, they should have been security guards on this floor before they died, specially guarding here.

"If it's a disaster caused by the rain of blood, why did these two security guards on duty stay in this place almost isolated from above, and still mutate into zombies?" Liu Qian used a flashlight to shine on the corpses of two zombies on the ground and asked Jiang Jinyuan a few words.

"I really don't know." Jiang Jinyuan smiled awkwardly. He tried to get closer to Liu Qian, and although the handheld computer showed that there were no other zombies nearby, he was still inexplicably afraid.

Human beings have an innate fear of darkness, and I have to say that this place is too dark.

Liu Qian didn't ask anything more, he used his flashlight to shine around again, and finally saw the layout of this place clearly.

The second floor is no longer a parking lot, and after exiting the hallway, there is a place similar to a security gate, which is guarded by two security guards. After passing through the security gate, another iron gate appeared a few meters ahead. Now that the security check is in vain, it seems that if you want to enter the secret area on the second floor, you must pass through the iron gate in front of you.

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