You can try to catch up and stop me, if you can. Genius remembers the first in a second"

After dropping this sentence, Liang Jingmo's voice no longer sounded, and no matter how Xiang Nanxing called, there was no response. The negotiation had obviously broken down, Xiang Nanxing's face was gloomy, and his fist smashed twice on the door panel hatefully, but he was not relieved.

"What now?" Nangong Yundie asked cautiously.

"What else can I do, I can only catch up."

Xiang Nanxing said as he lifted the cover on the side of the door with ease, revealing the valve underneath. However, after seeing the situation under the cover, Xiang Nanxing's hand holding the cover plate hung directly in the air, and the whole person was obviously stunned for a moment.

"What does that mean?"

He turned his head to look at Nangong Yundie. The latter shrugged helplessly, "I told you, this third floor door is a bit special, that's how it ......"

She lifted her finger and pointed to the valve, "Special." ”

What appeared in front of them was still the same round valve as the first two layers, but at this point, its number became three. I saw three identical circular valves neatly arranged into a vertical line from top to bottom. Although the gap between the round valves is large enough to put down one hand and not get in the way when turning alone, it becomes difficult to turn the upper and lower valves at the same time.

"Three valves." Xiang Nanxing muttered, "Does this mean that a password has been added?" Can only one or two of them be turned, or does it have to do with the order of rotation? Or is it a way to select people based on the number of people, and you have to turn three valves at the same time to open it? But it doesn't make sense, let's not talk about how Liang Jingmo lived, even if it was the owner of the house, it didn't seem like he would bring someone to ......"

His lips twitched, and he meditated on the thoughts that flashed through his mind at high speed. Each of them seems like a possibility, but it's impossible to be sure. The problem is that unlike Liang Jingmo, who exposed his identity from the beginning and openly engaged in the invasion, Xiang Nanxing's trial and error cost is very high, if the design here has any other role, if he makes a mistake, he will touch the alarm and be directly exposed.

After thinking about this, he finally remembered that there was another person next to him.

"Do you know anything about this door?" He asked, looking back.

After all, Nangong Yundie had reconnoitred under this site once before, and she was considered a pioneer, not to mention that she bluntly said from the beginning that the door on the third floor was "a little special", so she must have some understanding of this matter.

However, in this regard, Nangong Yundie could only shake his head.

"I know how it works, but it's almost incomprehensible, and even I can't get through without alerting the other party." There was a hint of frustration in her voice.

Xiang Nanxing asked, "What do you say?" ”

"Most people think that this should be related to the password, the three valves are combined according to the opening and closing state of some kind of password, and then the door can be opened correctly...... But that's not the case. Nangong Yundie raised her hand and stroked the three valves in turn, "Actually, the way to open it is very simple, as long as the three valves are opened...... But you wait first. ”

She pressed her hand down and stopped Xiang Nanxing's subsequent movements.

"It's not as simple as you think."

"Then you can get straight to the point." Xiang Nanxing was also a little impatient, "What happens when you open the three valves?" In some order? Will it explode if you make a mistake? ”

"It's not as scary as an explosion." Nangong Yundie knocked on the edge of the door frame and motioned for Xiang Nanxing to come over and take a look, "Look here, you can see the situation inside from the crack in the door." Each of the three valves can unscrew a deadbolt and open the door until it is opened. However, when the deadbolt is opened, it will inevitably hit the metal wire inside the door, and then an alarm will be triggered. Also, not only to open the door, but too much impact may also pull this line, so I told you to tap when you slammed the door just now. ”

"I'm sorry, I'm so excited." Xiang Nanxing smiled embarrassedly. But then he muttered, "If it's just an alarm...... The rest of the doors are like this, right? So as long as the speed of opening the door is fast enough and you can break through in one breath, it doesn't matter if you let the other party know in advance...... Wait, what is this? ”

He squinted his eyes and saw that there were several other sticks that looked like a puttrod, and when he looked inside, he saw that there was something black hidden deep in the wallboard, like a small motor.

His instincts told him that this was the key to opening the door.

"Yes, you've found the problem." Nangong Yundie sighed, "The impact of triggering the alarm is not just to attract the attention of the other party. In my estimation, the doors on the third floor can be locked remotely by using these motors to drive the pushrod to push the deadbolt back. Although the motor is small, it is the power of machinery after all, and you rely on flesh and blood, and you have to be the kind of strong man to fight against it. In this kind of pure fighting strength, and the skills are useless, even the Nangong family may only have a few people who can pass the test with a momentary explosive power. ”

She glanced at Xiang Nanxing's arm, "Uncle, you are relatively energetic among ordinary people, but it is far from enough." ”

This sentence was basically the verdict, but Xiang Nanxing didn't seem to hear it, he just squinted his eyes and looked into the crack in the door. "Wait, this thing doesn't seem to be activating, is it?" He suddenly asked, "If it's on normally, the indicator light should be on, or at least it should be flashing, right?" ”

"It's just not working 'for the time being.'" Nangong Yundie also secretly admired Xiang Nanxing's observation, "This set of things should have started spontaneously, and once the warning line was triggered, the motor would immediately start to operate, and the push rod would be pushed back to the top." But it belongs to the access control system, and as the system is manually turned off, this spontaneous start function should not exist, and now this thing still depends on people to operate manually. ”

She sighed, "However, if it is said that it is changed to manual operation, I guess it is only a matter of one button." You go off the alarm when you open the first valve, and then you have to open the second, and then the third, and then you can open the door. In this process, as long as the other party reacts in time and presses the button, the motor starts as soon as the problem is solved. The time you both need is not on a horizontal line. ”

"I can only hope that the other party reacts too slowly, or doesn't notice ......the alarm," Xiang Nanxing muttered, "However, at least Liang Jingmo passed just now, at least it shows that this system is not invulnerable." ”

"He was able to pass, probably because he was the 'first.'" Nangong Yundie shook his head, "It is impossible for a person's spirit to be tense all the time without being stimulated - can you imagine the situation when he keeps staring at the siren and puts his hand on the button?" In this case, the first time the situation occurs, there is a possibility that the reaction may be slower or even less responsive. ”

"I guess I figured out how it works before I opened the door, so I opened all three valves in one go in a short period of time, and I didn't even have time to react." Nangong Yundie seemed to have an understanding, "In this way, the crowbar was not left because he tried to open the door, but to make the crack of the door a little bigger, so that the structure inside can be seen clearly." ”

She looked at Xiang Nanxing, who was still seriously studying the institution, and a trace of unbearability flashed on her face.

"In short, the other party relied on a surprise attack to pass through the first gate, and we can't envy it. Even if you want to carry out a surprise attack, you still have to think of another way. "We have the lead, but we can only have two people turn the valve at the same time, unless we are so fast that we can change hands and ......open the third one in a very short time," she said.

Before she finished speaking, she saw Xiang Nanxing nodding, as if she had made up her mind. In the next second, his hands had grasped the bottom valve and began to turn slowly.

His movements were slow, very light, and the hand pressed against the valve seemed so careful that even his eyes were closed, as if he were holding not rusty steel, but a piece of crystalline jade, and he was feeling the touch under his hand.

Did he think that he could move lightly enough not to trigger the alarm? Nangong Yundie wanted to remind him that this was ineffective, but she couldn't bear to interrupt when she saw his serious appearance.

It's just that his movements are also a bit weird. She looked at it for a while, only to see Xiang Nanxing give up the first valve that had not yet been opened, and began to turn the second valve as soon as she raised her hand. This time he moved a little faster, but still seemed much softer than usual.

"What are you doing?" She couldn't help but ask. At this time, Xiang Nanxing's movements suddenly froze, as if he had encountered some resistance, and the next second, he suddenly took a long breath, and then tightened his arms and held the valve tightly, as if he was wrestling with something invisible.

Nangong Yundie knew that the alarm had been triggered, and the other party had pressed the button to re-lock, and the next thing was the time for the person to wrestle with the motor. She saw that Xiang Nanxing had tried his best, but this only delayed the closing time of the valve in his hand for a few seconds. Above and below it, the valve that had not been turned did not move at all, and the valve that had just been half-turned by Xiang Nanxing had already been re-tightened.

Everything is back to the beginning, only to arouse the alarm of the other party in vain, revealing the traces that have been hidden.

"Listen to me, let's go one, two, three, and then turn together." Nangong Yundie's expression was solemn, "You come to turn the top, I go below, whoever finishes first immediately turns to the middle, in this case, there is still a little chance to ......"

She didn't finish speaking, but saw that Xiang Nanxing had let go of her hand, straightened up and stretched her waist, looking relieved.

"Alright, that's it." He stretched out his sore arms, as if he was really relaxed, and even began to look left and right, as if looking for something, "I'll find some tools to take advantage of, and then I'll be ready to rush." ”

"Wait, I've said so much, do you still think a person can open the door?" Nangong Yundie looked at him in disbelief.

"Or else?"

Xiang Nanxing looked at her equally strangely, "If it's really like you decide, why can that guy continue to move forward now?" ”

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