Xiao Chen didn't feel much when they walked up the stairs, but when they arrived at the door of the safe passage on the 28th floor, Xiao Chen suddenly noticed a cold air rushing towards them.

This cold air is divided into two parts, one part is the natural cold air, which means that this layer has a dark feeling of not seeing the sun, and the cold wind mixed with the smell of old documents makes them very uncomfortable.

And the second part is the most critical, this cold breath feels more like the kind of "cold air" that Xiao Chen has seen several times before, such as when the ghost house was besieged by the men in black, they tried to use these cold breaths to break in.

Xiao Chen immediately became alert, and Sister Chonghong asked, "Is there a bodyguard of President Wang in this place?" ”

"Probably not." Sister Hong shook her head and said, "Mr. Wang doesn't work here, in fact, he rarely comes here all year round. ”

"Really? So where is he in general? Xiao Chen asked.

"Nobody knows." Sister Hong continued to shake her head: "I used to know more about his whereabouts, but now I can't grasp it. ”

"So it's actually possible that he's still there, right?" Xiao Chen said with a frown.

"I can't rule it out." Sister Hong said: "But the possibility is very small. ”

At this time, Lu Xiaoxi suddenly said "oops", and then pointed to the door and said, "How can there be a sign here?" ”

Only then did Xiao Chen notice that there was indeed a strange wooden sign in the central area of the entrance gate of the safe passage, that is, between the two door cracks.

Xiao Chen frowned and took a closer look at the sign, and immediately understood where the cold air just now came from!

That's what came out of this sign!

With Xiao Chen's gaze, there was indeed some faint cold light gradually revealed on this brand.

This brand, both in size and shape, was exactly the same as the puzzle mechanism that he and Chen Meng had seen before in the level 4 area of the pharmaceutical company!

"Can you see the streamer on this sign?" Xiao Chen immediately asked.

"What streamer?" Sister Hong and Lu Xiaoxi asked at the same time.

It's just that you can't see it...... Xiao Chen hurriedly warned the two of them not to touch this door.

It seems that there are also organs here, which means that these 28 floors are definitely not just archives.

Xiao Chen first approached the door, looked inside through the glass above, and found that it was dark inside, but Xiao Chen now has a certain night vision, so he can still see some obvious mud footprints on the ground.

This headquarters building is supposed to be cleaned up frequently, and it is unusual for such mud footprints to appear here, and Xiao Chen found that these footprints seem to have dried up.

"Give Chen Meng a call!" Xiao Chen rushed to the road and Xiaoxi ordered.

Although Lu Xiaoxi was puzzled, he didn't dare to ask more, and quickly dialed the number Xiao Chen said.

That's right, Xiao Chen knew that there would definitely be a puzzle on this brand soon.

Sure enough, the moment the phone was connected, the first puzzle appeared on the sign: no cheating in the exam.

Chen Meng gave the answer almost instantly: true score.

Next, like last time, several mathematical puzzles appeared on this sign one after another, and after being solved by Chen Meng one by one, the streamer on the sign disappeared.

It is worth mentioning here that Sister Hong and Lu Xiaoxi, who are living people, not only can't see the streamer on the sign, but also can't see the puzzle display on the sign.

Xiao Chen felt a little strange, he didn't understand why these puzzles were all related to mathematics, could it be the same as the situation in a pharmaceutical company? There's a ghost teacher who teaches arithmetic there, so there's one here too? Or is it ...... Is this the same ghost?

After Xiao Chen waited for the streamer on the sign to disappear completely, he tried to push the door.

The door was not locked, it opened directly, and at the same time, Xiao Chen's appearance time had also arrived.

He quickly shook the wind chime to indicate his presence, and then listened to Sister Hong say, "Why is it so strange here...... It's not quite the same as I remember before. ”

Before the words fell, Xiao Chen felt that he seemed to have some heat on his body.

He thought it was his singing crystal doll that was feverish, and was wondering how there could be Qianqian's energy memories here, when he heard Lu Xiaoxi say in surprise: "Hey? Top dog? Why are you out again? ”

Xiao Chen was stunned for a moment, hurriedly looked down at himself, and sure enough, he found that his body didn't know when it appeared again! There is no sign of any translucency.

Sister Hong also stared at Xiao Chen and said, "We can all see you now, do you say something and try it?" ”

Xiao Chen immediately coughed.

Sister Hong nodded: "There should be some kind of device here that can make ghosts manifest." ”

Xiao Chen was startled, and hurriedly swept around, and soon found the problem.

At first glance, the walls here look like nothing, but if you look closely, you can see that the walls are all covered with the same reflectors that Xiao Chen had seen in the pharmaceutical company before.

Of course, there's no light to reflect off here, but there's a chill flowing on the surface of the reflectors.

Because the light was too dim, Sister Hong and Lu Xiaoxi naturally couldn't see anything, Xiao Chen told the two to stay where they were first, and then tentatively continued to move forward for a distance.

This floor is divided into countless areas by corridors and compartments, judging from the pattern, it is indeed the appearance of an archive room, and Xiao Chen found that there are indeed a lot of filing cabinets in many doors, and some documents can be seen in them.

Xiao Chen walked like this for a while, not to find anything, but just to see if he would trigger some kind of alarm because of the reflector when he was acting here.

But no, it seems that these reflectors can only make Xiao Chen visible, as long as no other people nearby can see it, then he doesn't have to worry about exposing himself.

In addition, the reflectors of the pharmaceutical company did not seem to be in operation at that time, after all, there were no energy streamers on those boards, so Xiao Chen was not visible when he was in the pharmaceutical company.

This is also trouble-free, after all, he now hopes that he can maintain communication with Sister Hong, which is exactly what Xiao Chen wants.

Soon Xiao Chen returned to Sister Hong and Lu Xiaoxi, only to find that they both had a flashlight in their hands, and it was the kind of flashlight that could cause damage to ghosts, including himself.

"Be careful." Xiao Chen warned Lu Xiaoxi and said: "This is a special flashlight, the light of this thing is harmful to me, don't shine on me." ”

"Got it, boss!" Lu Xiaoxi immediately nodded.

"You came prepared." Then Xiao Chen looked at Sister Hong again and said, "These are these from Yue Ling?" ”

"I took it from her room." Sister Hong smiled: "She won't mind." ”

Xiao Chenxin said that Yue Lingjie didn't mind it, but he did mind, because Sister Hong clearly deceived Xiao Chen.

"If you asked me for help, why didn't you tell me the truth beforehand?" Xiao Chen said suspiciously, "Don't you trust me?" ”

Sister Hong tilted her head: "Then in all fairness, if you were in my position, would you easily believe in a ghost you have never seen before?" ”

Xiao Chen frowned: "Of course I won't, but since you don't trust me, why are you asking me for help?" ”

"Because I don't have any other way." Sister Hong said.

"Can you trust me now?" Xiao Chen said: "What's going on with this lover of yours?" ”

Sister Hong bit her lip, and then said softly, "I doubt it...... He may have died. ”

This answer not only surprised Xiao Chen, but Lu Xiaoxi next to him almost howled.

Xiao Chen hurriedly blocked Lu Xiaoxi's mouth before he could speak, and Lu Xiaoxi said hesitantly: "So he's also a ghost?" ”

"It's not certain yet." Sister Hong said with a frown.

"And who were you talking to?" Xiao Chen continued to ask.

"It's a friend of mine here." Sister Hong said: "But she can't determine the specific location now, so we can only look for it on this level by ourselves." ”

No wonder this Sister Hong's explanation of the phone call just now was so far-fetched...... It turned out to be.

At this time, Xiao Chen took a look at his system and found that there were no more tasks.

Also, after all, I haven't even finished the original main quest yet.

At this time, Sister Hong herself also found mud footprints on the ground and shone them with a flashlight.

Although Xiao Chen has a certain ability of night vision, with the help of a flashlight, he can naturally see more clearly.

Only then did he realize that the footprint looked very small.

Another child?

Xiao Chen was a little surprised, how could there be children even here?

Xiao Chen is now more and more skeptical that there are "primary schools" or even "kindergartens" similar to those in pharmaceutical companies.

"The footprints are the wrong size, they shouldn't be the ones I'm looking for." Sister Hong said, and then her tone quickly became confused: "What is this kid doing here with muddy footprints?" ”

At this time, Lu Xiaoxi bent down and touched a handful of footprints and said, "It's already done......

But he quickly said in surprise and said, "No...... It doesn't seem to have done it again! ”

When Lu Xiaoxi stood up and put his hand in front of Xiao Chen's eyes, Xiao Chen found that Lu Xiaoxi's fingers were actually stained with some blood!

Xiao Chen hurriedly looked at the footprints on the ground again, only to find that the muddy footprints just now had turned into bloody footprints!

Lu Xiaoxi's two eyes immediately widened, and he looked like he was about to burst out: "Old ...... Top dog...... There are ghosts here! ”

Xiao Chen scolded him and said, "You're afraid of a fart!" Forgot? Lao Tzu is also a ghost! ”

However, although Xiao Chen said this, he was actually a little panicked in his heart.

On the contrary, Sister Hong was the calmest one, and I saw that she had already taken out the previous energy detector at this time.

After opening it, Xiao Chen found that there was actually a point of light representing energy next to them at this time!