"Generally speaking, in order to avoid radiation, the building's motor system and backup motor should be underground, such as the basement first floor and the basement second floor, etc.." Jiang Jinyuan thought about it and replied to Liu Gan.

"Then we should go underground now instead of upwards." Liu Gan confirmed to Jiang Jinhara.

"Yes." Jiang Jinyuan nodded.

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

Jiang Jinyuan followed Liu Gan tightly, while going downstairs and looking nervously up the stairs. He looked down. Although Liu Gan was walking in front, he was still insecure. Who knew when a large group of zombies would suddenly rush out of this dim stairwell when he came. I was afraid that Liu Gan would only care about himself and could not protect him at all.

However, the fire stairwell was very quiet. After walking three times, I didn’t encounter zombies when I went down to the first floor. After going down to the first floor, the handheld computer automatically adjusted to display the distribution of zombies on the same level. You can see at least dozens of zombies wandering in the lobby on the first floor, and there were three outside the iron gate of the fire stairs. Fortunately, the two of them did not need to enter the lobby on the first floor now, but continued to go down and walked down to the parking lot on the first floor of the building.

The weather was not good and the light was very dim. The more you walked downstairs, the darker the light underground, and everything around you became more gloomy. There were also the unconscious wailing sounds of zombies coming from far and near, making people's nerves become nervous involuntarily.

What secrets or dangers are hidden in the underground world? All unknowns are hidden in the darkness, waiting for the two of them to explore.

Liu Gan took out the flashlight he had found before and carefully went down the stairs to light up Liang. Judging from the display of the handheld computer, there were at least four or five zombies wandering at the exit of the stairs on the negative floor.

Although Liu Gan has now reached level 5 and has improved his strength a lot, it is a piece of cake to deal with four to five zombies at one time, it is still not ruled out that he accidentally was caught and bitten by zombies in a small and dark space. In addition, he also needs to protect Jiang Jinyuan 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 to go down. It seems that there is not only the negative floor of the ground, but also the negative floor of the second floor or even deeper.

The first floor of the negative floor is a parking lot. According to the characteristics of the architectural design of Sanyu Company, Jiang Jinyuan estimated that the motor and backup motor might not be on the first floor of the negative floor, so he suggested that Liu Gan continue to go down. Of course, Liu Gan had no objection to this, so the two continued to go down and went down to the second floor of the negative floor, and then the stairs reached the bottom and could not continue to go down.

If there were still buildings deep in the underground of this laboratory, the stairs that went down would definitely not be here.

After leaving the fire staircase, there was a long corridor. After coming here, I was already surrounded by darkness with my hands and fingers. Even if Liu Gan had strengthened his vision, he could not see things clearly in this darkness. Just like a cat who could focus on his eyes in the darkness. If he came to absolute darkness, it would also become a blind man who could not see anything, because there was no light around him that could be used.

Now Liu Gan can only use the faint light of the flashlight to observe the situation around him. But the light of the flashlight will also attract the attention of the zombies, so Liu Gan will not keep turning on the flashlight. Occasionally, he will turn it on and look around for a circle, and then continue to move forward in a dark way.

This darkness of the fingers that was out of sight made Jiang Jinyuan's scalp numb. He had to reach out and grab one of Liu Gan's arm like a child dependent on an adult, so as to avoid accidentally getting separated from Liu Gan in the darkness.

Groving forward in the darkness reminded Liu Gan again of some horror games he had played before, and found the feeling that he knew that there was danger hidden in the darkness but had to continue moving forward.

Fortunately, with the help of the handheld computer, I would not be blinded and could only let monsters attack in the dark.

According to the detection of the handheld computer, there were no zombies in the corridor after the stairs on the negative second floor, and there were only two zombies outside the iron gate at the end of the corridor. In addition, there was unexpectedly no zombie in other places on the entire negative second floor. This seemed to mean that as long as the two zombies outside the iron gate at the end of the corridor were killed, the entire negative second floor would be safe.

Maybe it's safe. For some reason, Liu Gan always felt a little uneasy in his heart, the kind of uneasiness that is coming with a huge danger. However, since he has come here, it is impossible to leave without anything.

The iron door at the end of the corridor did not need a key, so it twisted the door lock and opened. The sound of the iron door opening attracted the two zombies near the iron door, but these two zombies did not pose too much threat to Liu Gan. After opening the door and illuminating them with a flashlight, Liu Gan rushed forward and kicked one of the zombies away, and then slashed the head of the other zombie with a fire axe.

The zombie who was kicked off was kicked off and could not walk upright. However, she crawled on the ground and approached Liu Gan again. Liu Gan took a few steps forward and stomped the zombie's neck with one foot.

Judging from the clothes of these two zombies, they should have been the security guards on this level during their lifetime, and they were specially guarded here.

"If it was a disaster caused by blood rain, why did these two security guards on duty stay in this place almost isolated from it, and still mutate into zombies?" Liu Gan shone the corpses of two zombies on the ground and asked Jiang Jinyuan a few words.

"I really don't know this." Jiang Jinyuan smiled awkwardly. He tried hard to get closer to Liu Gan. Although the handheld computer showed that there were no other zombies nearby, he was still a little scared inexplicably.

Humans are born with fear of darkness, and I have to say that this place is too dark.

Liu Gan didn't ask anything more. He shone the flashlight around again, and finally saw the layout here clearly.

The second floor of the negative is no longer a parking lot. After leaving the corridor, there is a place similar to a security door. The two security guards guarded this security door. After passing the security door, another iron door appeared a few meters ahead. Now the security check is useless. It seems that if you want to enter the secret area of ​​the second floor of the negative floor, you must pass the iron door in front.

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Chapter completed!