"Okay, I got it, no matter what, our trip here tonight wasn't in vain. At the very least, we should be clear about what's going on. So, I now have a rough idea in my mind."

"Should we now proceed with another task?"

"Are you referring to replacing the surveillance cameras in the lobby on the first floor?"

"Exactly, we need to replace them, otherwise, we might run out of time. My thought is to install all the basic infrastructure firmly today, so that it'll be convenient for us to observe things later."

"Alright, no problem. We've accurately located this position, so I believe that, henceforth, planning in the long term will make our work progress much smoother. Let's go, straight to the lobby."

After finishing speaking, the two of them stood up and then took the elevator directly to the first floor.

This place wasn't far from the gatekeeper's post, and should have been plunged into silence by now. Although the lights in the lobby shone brightly, one could still feel a chill down their spine.

Even standing in the center of the lobby, they could hear continuous sounds, and occasionally, feel a breeze on their backs.

Ye Chen walked to the gatekeeper's post, looked at it, and found it tightly closed, with even the window covered by a thick layer of curtains.

He walked over to that side and then gently knocked on the door.

But after waiting for a while, there seemed to be no response.

Ye Chen checked the time; it was just before 8:00. The person inside couldn't be asleep, could they? How could they possibly fall asleep so early?

So, Ye Chen knocked forcefully on the door.

"It's me, I am Ye Chen. Come open the door."

He shouted loudly, even if the door didn't open, his voice should have been clear enough for whoever was inside to hear.

Indeed, these words were quite effective – after all, many people knew that a new Security Director had arrived, and this name sounded very familiar.

Finally, after about 20 seconds, the door opened, and two people stood there at the doorstep.

"Ye, Director Ye, why, why have you come this time?"

They seemed genuinely surprised by Ye Chen's sudden appearance.

After a glance behind them, the hall appeared empty except for the woman who came with them; no one else was in sight.

"What were you two doing in the room?"

Ye Chen had been very serious when he first arrived.

Because he wanted to create this illusion for them, only by doing so could he successfully captivate their attention.

"Director Ye, I, I wasn't doing anything, just monitoring the surveillance equipment outside the door. And, as you know, it's impossible for anyone in the company to leave at this time; they're all hiding in their rooms."

"It's fine if they hide in their rooms, but for the two of you, at such an important position on the first floor, you're not planning to sleep through it, are you? Follow me to the hall, I want to tell you a few key spots you'll need to guard closely from now on."

"What? Key points to defend?"

"Yes, since you're reluctant to come out, I'll let you know the approximate spots, and then adjust the surveillance cameras. This way, even if you don't leave the room, you should be able to monitor every corner of the lobby."

"Oh, Director Ye, I see, okay, got it, I'll be right there."

After hearing this, the two of them finally reacted. Although Ye Chen seemed aggressive, he did not appear to be targeting them personally.

Under Ye Chen's coaxing, the two followed him towards another direction in the lobby.

Anying saw that there were no others around by now, and knew that there wasn't much time but was adept and quick. This period was more than sufficient.

Anying quickly controlled the operations here, and in about five to six minutes, everything was in order, and then checked the phone. The cameras were now clearly visible in hand.

Anying nodded satisfactorily, then coughed loudly. Ye Chen heard the cough and looked back.

Their eyes met, and Ye Chen understood that Anying had finished all the tasks smoothly.

"Alright, let's end this for today. Remember, be vigilant, and especially since this is the first checkpoint into the mountain, it's extremely important. After these haunting events are over, you'll need to guard this place even more stringently, understood?"

"Okay, okay, Director Ye, I understand."

The two just nodded repeatedly, then watched Ye Chen and Anying enter the elevator which then ascended.

At this moment, Ye Chen felt much relief in his heart.

The initial oppressive feeling was slowly fading away, as the whole affair was being gradually unraveled.

But who was the mastermind behind the scenes? Ye Chen believed it had to be closely related to the people inside the building.

And what were those people hiding underground doing?

Such secrecy, and the reason for not allowing people to work overtime here at night, was probably to make it convenient for them to carry out their activities.

Subsequently, the two returned to the office.

After closing the valve, Anying paused at the door, then opened her laptop, displaying all the cameras.

"This area is covered by the three cameras on the first floor, and we can now clearly see this. The rest are distributed across each floor. If you want to switch to another area, I will need to toggle back and forth for you."

"That won't be necessary. Actually, these cameras don't mean much to us, the main thing is the camera at the entrance, namely the one in the lobby on the first floor. I think it's very important."