Super System: Doomsday Upgrade Busy

Chapter 520 This is a good sign
"What is it?"

Su Qing frowned and looked at the place where the green had disappeared, and murmured puzzledly.

"You found it too?"

Ouyang Cheng asked softly, and then walked in the direction Su Qing was looking at first.

It was an ordinary office. Su Qing and Ouyang Cheng just walked in that direction, and they didn't notice anything before.

Su Qing's eagle eye technique occasionally fails, such as when she encounters people who also come from the interstellar world; or when she encounters high-level zombies, such as when she is in the Death Town, she cannot see far.

But Ouyang Cheng's mental strength is relatively reliable.

Just looking at the way his brows were tightly furrowed, it seemed that he hadn't noticed anything unusual before.

The room is not big, only about [-] square meters, with a few desks and a few cabinets for materials.

Everything here is as usual, there has been no fighting scene, and all the furnishings are neat and orderly.

In addition to the unlit computers on the tables, open folders or notebooks for recording, as well as cups for drinking water, were spread out on several of the tables.

Su Qing picked up two of the cups casually, and found that the water inside hadn't been finished yet, and it looked fresh. She estimated that there were still people working normally here at most two days ago.

"It's strange. It looked like there were people here two days ago. Where have they gone now? Could it be that they knew what had changed here and evacuated in advance?"

Su Qing asked while holding one of the cups.

"Or instead of evacuating, it was swallowed by something?"

Ouyang Cheng replied, then pulled Su Qing over, and pointed to the wall behind her.

Su Qing also stared. In order to see more clearly, she took out two military flashlights from the system warehouse.

Under the incandescent light, Su Qing noticed that there was a wet mark on the wall behind the table where she was standing just now, as if something had just crawled over there and left a mark.

Su Qing's back was a little hairy, because she didn't notice it at all just now, and she still stood in front of that mark for at least a minute.

"There is no bloody smell, nor is there any rancid smell. This is a good sign, and it means that that thing should not be a zombie or a mutant animal."

Ouyang Cheng stared at the mark for a while, and then came to a conclusion.

"You said the rustling sound just now was made by this thing crawling?"

Su Qing asked, and then the flashlight shone on the ceiling along the mark.

That mark finally disappeared into a ventilation duct, with a diameter of at least [-] to [-] centimeters, which reminded Su Qing of a cold-blooded animal that she hated very much—a boa constrictor.

It's just that the scales of the boa constrictor have a certain waterproof effect, so after crawling through it, it shouldn't leave such wet marks, right?

Compared to mutant mice, or mutant bugs, this is indeed good news.

Ants gnaw dead elephants more, if a large group of insects or mutant mice really emerge, it may be difficult to get out of this research institute today.

If it's just a mutant python, Su Qing believes that with her and Ouyang Cheng's strength, there shouldn't be a problem if they want to knock it down.

Knowing that it wasn't a mutated bug, or a herd animal like a swarm of rats, Su Qing was really relieved.

"It should be it. It didn't take the initiative to attack, and we don't need to provoke it. It's important to find someone. Let's go."

Ouyang Cheng replied, then took Su Qing's wrist and left.

Perhaps it was because of the dark underground, and after being in danger several times before, Su Qing was very nervous, and she didn't realize that Ouyang Cheng was holding her hand again.

Ever since Ouyang Cheng killed those big monsters with one blow, Su Qing saw that he was weak and helped him a distance.

When she was in danger, she grabbed his wrist and ran wildly.

Up to now, Ouyang Cheng, who had recovered his peak strength, still continued to hold Su Qing's hand before she could react.

To a certain extent, Ouyang Cheng is still a bit dark-bellied.Just like now, Su Qing didn't resist him holding her hand. To Ouyang Cheng, it was a secret signal!It was a secret signal that Su Qing didn't hate him, which gave Ouyang Cheng some hope.

So, selfishly, he wanted to hold hands with Su Qing and walk forever in this underground research institute...

However, this idea only stayed in Ouyang Cheng's heart for a minute, because there are more important things waiting for him to do!
His mother has not been found yet, and his father is still in Tang En's hands. The right time, place and people are right, and he does not take advantage of it!Ouyang Cheng knew that after finding his mother, the close relationship between him and Su Qing who supported each other and fought side by side would end, so he cherished this time alone with Su Qing very much.

The rustling sound continued to follow their footsteps, but Su Qing and Ouyang Cheng were much calmer this time.

"Here, there is a safe passage, and it seems that you can go up."

After another turn, Su Qing finally found some exciting news.

"Ah."

Ouyang Cheng just nodded lightly in response, then pulled Su Qing behind him, and pushed open the metal door with the sign of "Safety Exit".

As soon as the door opened, a black shadow rushed over.

Su Qing and Ouyang Cheng, who had been prepared for a long time, started at the same time, and with a "poof", the head of the black shadow that rushed over was chopped off by the wind blade, and Su Qing's long whip also wrapped up the black shadow in good time, throwing it to the ground. It was placed gently on the ground.

"It's a zombie. It looks like it has just advanced."

After Su Qing checked it, she whispered.

"You can go down, you decide whether to go up? Or go down?"

Ouyang Cheng asked while standing in the stairwell.

"Go up, it's very uncomfortable down here."

Su Qing replied almost without hesitation.

After she finished speaking, she wrinkled her nose in embarrassment and said, "Of course, if you choose to go to the lower floor to find your mother, I will accompany you."

"It's better to go up. The lower you go, the more confidential the place is, and the things inside are probably more difficult to deal with. My mother is just a weak woman, so Tang En doesn't need to work too hard, so she should be upstairs Go up a few floors."

Ouyang Cheng frowned, then motioned for Su Qing to go first, and he came to the back of the hall.

The two climbed the stairs silently.

However, the number of steps of this staircase is much longer than that of ordinary buildings. Su Qing roughly calculated that the height of the building should be about two or three times that of ordinary buildings.

Seeing a [-2] written on the metal gate on the upper floor, Su Qing understood that they were now on the second basement floor.

Compared to the third underground floor, the second underground floor is much more normal, because behind the door, not only are the lights brightly lit, but there are also many figures dangling around.

But without exception, those who used to be the staff of the research laboratory have all turned into zombies.

(End of this chapter)