"What's going on?" Liu Qian asked Jiang Jinyuan.

"There's a little scrap of paper here...... Jiang Jinyuan looked at the eyeball for a moment and then found the problem, he carefully used another bundle of rolled toilet paper to gently remove the scrap of paper, and then took the eyeball over again to scan.

This time it successfully passed the scan, and the electronic door lock sounded 'horn!' There were a few soft sounds, and it seemed that several deadbolts and the like popped out of the lockbox one after another. At the same time, a gap appeared on the side of the iron door, and it was clear that the iron door was not pushed inside, but slid to the side.

"You need to use brute force to pick it open, my handheld computer can only provide power to the electronic door lock, and cannot drive the drive motor roller of the iron door." Jiang Jinyuan withdrew his eyeballs from the culture flask, and after putting the cap on the bottle, he said to Liu Qian.

Liu Qian tried to pick at the gap in the iron door with his fingers, but the gap was too narrow for him to put his fingers in, so he couldn't exert his strength.

After thinking about it, Liu Qian stuffed the end of the fire axe blade into the gap, wrenched his two hands on one end of the axe hammer, and suddenly pried the gap in the iron door a little bigger. Now his fingers could barely reach into the gap, so Liu Qian pulled his hands into it together, and suddenly increased his strength, Jiang Jinyuan also came over to help, and the two finally opened the heavy iron door by about dozens of centimeters, enough for them to get inside.

After entering the iron gate, Liu Qian closed the iron gate back a little, leaving only a two-centimeter gap so that he could open the iron door when he returned, and at the same time to prevent zombies from inadvertently wandering here and sneaking up on them when they left.

After closing the iron door, Liu Qian took out a flashlight and looked around, and soon confirmed that it was a huge underground warehouse, about six meters high, with some very complicated pipes above, and many shelves stacked below, and all kinds of instruments, sundries and some huge cardboard boxes containing materials that Liu Qian did not know.

The warehouse is not usually large, and there are a lot of things piled up, so Liu Qian thought that since he had come in, he would look inside to see if he could find any high-tech products, medicines, canned food, and the like.

After some searching, Liu Qian confirmed that there was no canned food in the warehouse, all of them were some highly professional equipment and documents, so there were almost no materials to use, only found a crowbar by the wall somewhere, which seemed to be somewhat useful.

"You think you can find me some treasures here?" Liu Qian couldn't help but be a little disappointed when he saw that Jiang Jinyuan also walked back empty-handed.

"It's all scrap equipment, and there's nothing high-tech to do." Jiang Jinyuan's face looked a little embarrassed, he was indeed suspected of using Liu Qian when he came to this laboratory, and as for whether he could find anything good, he didn't know whether he could find anything.

At this moment, I don't know if it was underground, or somewhere else, there was a very subtle rumbling sound, which ordinary people couldn't hear at all, but Liu Gan's strengthened sense of hearing was aware of it.

"Do you hear that rumble?" Liu Qian asked Jiang Jinyuan.

"I didn't hear that." Jiang Jinyuan shook his head.

"Maybe it's thunder outside." Liu Qian speculated.

Just when Liu Qian was a little disappointed and was about to ask Jiang Jinyuan to leave together and return to the upper floor to find a spare motor, he suddenly seemed to think of something, so he asked Jiang Jinyuan to turn on the detection device again and probe the underground.

After observing the detection results, Liu Qian found an anomaly on the computer screen in his handheld computer. It was a yellow spot of light, and the luminosity was so low that you couldn't see it if you didn't look closely.

According to Jiang Jinyuan's previous statement, green represents life without infection, red represents infected life, and blue represents the local indigenous people, so what does this yellow dot represent?

There are five minus signs next to the yellow dot, indicating that the yellow dot is at least ten meters deep below the warehouse.

"The yellow dot represents an unknown type of creature that cannot be recognized by the main system of the handheld computer, and it should not be an infected zombie or a mutated zombie, if it is, it will be directly displayed as red or dark red." Jiang Jinyuan explained a few words to Liu Qian.

Liu Qian followed the guidance of the handheld computer to the vicinity of the yellow dot, but found that the place where the yellow dot was located was blocked by several shelves lined up together. When the two of them were looking for things to pass through here, they didn't think much about it and didn't think anything about it, but now it seems that this seems to mean that inside these shelves, there should be a secret passage that can lead to the bottom of the warehouse, and this secret passage is connected to a secret space.

The unknown creature represented by the yellow dot should be in that secret space.

Could it be a mini-boss guarding some artifact? Liu Gan's mind couldn't help but spin quickly.

Without the guidance of the handheld computer, Liu Qian would not be able to see the abnormality of these shelves at all, and this underground warehouse needs to pass through the security check, and at the same time, it also needs a high level of authority to enter, so the secret of the underground of this warehouse is definitely not an ordinary secret, since it has reached this point, it must be explored clearly.

After Liu Qian removed some of the goods from the shelves, he used brute force to pull the shelves aside a bit. There is a square space at the back of the shelf, and there is nothing else in the space, except for a carved cylinder about a meter in diameter in the center.

"What does that mean?" Liu Qian walked into the square space and circled the carved column twice.

After slashing a few axes at the carved column, Liu Qian stopped, and inside was a solid reinforced concrete structure that looked more like a load-bearing column. Maybe there's nothing behind this shelf, just because there's a load-bearing column, and it's enclosed by a shelf for aesthetic reasons, right?

Just when Liu Qian retreated a few steps in disappointment and was about to leave, he suddenly felt that something was not quite right under his feet. So he walked around in the space behind the shelves again, stomping his feet as he went.

The ground made a thumping sound from his stamping, and Liu Qian carefully discerned the subtle differences in each sound, and finally he stood near a certain floor tile, confirming that the sound of this floor tile stepping on it was a little different from the others.

Liu Qian felt in the cracks of the floor tiles, but he couldn't find anything abnormal, he thought about it and then simply took the wall hammer and slammed it against the floor tiles. The floor tiles and the cement blocks under the floor tiles were smashed into blocks by the wall hammer, and after removing the cracked bricks, a circular iron door appeared under the bricks.

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