Since Yu Niang had withdrawn all the guards from the base, there were no guards at the entrance of this small building, so Yu Niang directly opened the door and entered the control room unimpeded.

The antechamber of the small building looked ordinary, except for a dilapidated desk, and a few wooden chairs.

At the back of the office, an iron door attracted Huo Chi's gaze, and it seemed that the real control room was behind that iron door.

"Mr. Huo Chi, please wait. Yu Niang took three steps and two steps, found the back of the shabby desk, opened the drawer, and found several cards from it. She picked through it, took out a red card, and then walked to the iron door and gently swiped it on the doorknob.

With a "click", the iron door opened, Huo Chi immediately walked over, stretched out his head and looked inside, the furnishings in this control room were also quite simple, and there was no imaginary sense of technology.

In contrast, the control room was bare, except for a square wooden table and a very inconspicuous chair, except for the old laptop with a network cable attached to the table.

"This place is the control room?" Huo Chi felt a little incredulous, such a large base, only a laptop is needed to control?

"Yes, this is the control room, usually all the operation of the machinery in the base and the security system on the side of the gate are controlled by this computer, and this computer can be operated without us, everything can be done by itself. Yu Niang nodded.

It seems that this place is really a control room, to be exact, the only control unit in this control room is the laptop that looks very old.

Huo Chi stood at the door, and did not enter immediately, because this place seemed to reveal a little strange atmosphere, who knows if there is an invisible device in this room?

Wouldn't it be very troublesome if he went in with his front foot and knelt in the control room with his back foot.

"Abu, can you check here first if there's anything to look out for?" Huo Chi said to Abu.

"It seems normal at the moment, the computer is the one who has the information to transmit, but ......" Abu looked cautious and nervous: "I'm worried that the security system is also working in the control room now, so I don't dare to scan the things in the control room." ”

"But Abu, wouldn't it be more dangerous for me to go in casually if you didn't scan it?" Huo Chi noticed that Abu was more cautious than before, and he didn't even dare to scan the room in front of him. But if it doesn't scan, how can Huo Chi go in casually?

"yes, that's really a problem, I'm afraid this place is a trap, I went in and scanned it and directly exposed the two of us, in case something was activated again, we were locked inside, and we couldn't get out. Abu spoke directly about his concerns.

"Well, you're thinking long-term. Huo Chi couldn't help but lightly tap his forehead with his hand, what should I do? Abu didn't dare to scan or enter, did he still have to give up this place? The control room was close at hand, and the two of them had no other way?

"By the way, I thought of a way. Abu said suddenly, "Have you noticed that the walls and floor of this control room all seem to be made of metal. ”

"Noticed, that's why you said we'd be locked up, right?"

"Yes, I had that idea at first, but since the four walls are all metal, we can make use of this room. ”

"How do you use it?"

"A metal room like this has very good wireless shielding. All we need to do is unplug the network cable and close the door completely, and this room can block all the information, so hard, even if I accidentally touch the security device, they can't pass the information out. ”

"I see, you're saying this room is actually a Faraday cage?"

That's what it means. Abu agreed, but then he said, "There is still a small problem. ”

"What's the problem?"

"That is, during the time you go in and unplug the network cable, and then close the door with your hand, we may still be exposed. ”

"Uh...... That's true, but I can let Yu Niang go in and pull out the network cable first, and then I'll go in after it, and close the door as soon as I can't do it. ”

"You go in and close the door, at least a second, leave this second, in case something is triggered after entering, we will be exposed immediately. ”

"Then what do you say? This is not good, that is not good, can I only let you go offline immediately?" Huo Chi was also a little impatient, after all, his behavior of standing at the door and probing his brain into the house without going in was enough to make Yu Niang feel strange.

"yes, how did I forget about going offline, just do it, I'll go offline now. When Abu heard this, he came to his senses.

"Wait a minute, don't go yet. Huo Chi was speechless for a while, but he didn't expect to remind Abu in the end: "Don't go offline immediately, wait for me to go in and go offline, and then you calculate the time and hurry up to go online for me." ”

"Got it, tell your girl to unplug the cable. Abu came up with a solution and hurriedly urged.

"Don't worry, now there is a small question, are you sure that the walls, floors and ceilings in the room are metal?" Huo Chi was still a little uneasy, after all, he could only check the situation in the room with the naked eye now.

"There's an 80 percent chance it's metal, because I can't scan the inside of the house, so I can only judge by the color and reflectivity of the walls, and based on my comparison, it's at least 80 percent likelihood it's metal. ”

"No, it's not 100 percent, can't you use the method of spectral analysis to determine it?" Huo Chi hesitated when he heard this.

"I didn't expect you, a foodie, to know about spectral analysis?" Abu seemed a little incredulous, but still explained, "You think I don't want to, spectral analysis, it will take a little time, okay? ”

"It doesn't matter what her eyes are, you can analyze it for me first, what if the walls and floors just look like metal?" Huo Chi said this, and simply turned around and sat down on the wooden chair in the front hall.

"Mr. Huo Chi, what's wrong with you?" Yu Niang found that Huo Chi had been looking outside the house for a long time, but instead of going down, she retreated again, feeling very strange.