"Tuk-tuk."

There was a sudden sound of hurried footsteps in the corridor, and after a few consecutive hits, followed by a heavy "pop", which was the sound of landing after jumping down a few steps, which meant that the owner of the footsteps did not even have the patience to run the last few steps in turn, and was very anxious.

However, no amount of anxiety can outweigh the necessary time consumption. When Xiang Nanxing and Yue Ming ran down the four floors and rushed out of the door of the music building, the target they were looking for had completely disappeared into the night.

Although such a result is disappointing, it is at least still in Xiang Nanxing's expectations.

"This way." He pointed in the direction the man had left last and took the lead in chasing after him. Yue Ming followed without hesitation this time, he quickened his pace and ran to a place at the level of Xiang Nanxing, and asked with difficulty while adjusting his breathing, "Who is this person?" ”

"If I'm not mistaken, this guy probably has something to do with the music we encountered." Xiang Nanxing said, "Even if it's not directly related, at least I know something, otherwise why would ordinary students come to such a haunted place at night when they have nothing to do?" ”

Yue Ming pointed to the tip of his nose: "But aren't we like that!" ”

"Don't interrupt!" Xiang Nanxing was almost speechless to him, "After all, we are here for the investigation, and if it were us, we wouldn't have run away just because we heard the sentence 'I caught you'." If you don't do bad things, you don't have to be empty at all! ”

Yue Ming was puzzled: "However, even if he is really the one who arranged that mechanism, then he doesn't need to squat downstairs, right?" He couldn't have predicted that we'd find that critical sounder, and even if he did, he wouldn't be able to do much downstairs. ”

"There are two reasons for this." Xiang Nanxing explained, "First, did you notice the flashing little red light on the sounder? Generally speaking, the lights that indicate the power-on status are constantly on, and some may start to flash when the battery is about to run out, but when we go in, we just happen to encounter it when the battery is approaching? This chance is a bit small. Moreover, power lamps are generally used on equipment with external power supply, because it is necessary to show whether the circuit is turned on. But for gadgets like this, which are very small and generally used for stealthy actions, a power light is specially set up. ”

"So, this red light indicates something else." Yue Ming realized.

"To put it bluntly, nine times out of ten, it's a signal." Xiang Nanxing continued, "Have you noticed that when we arrived downstairs, the voice sounded. At the door, as he was about to enter, the voice sounded again. But when we actually enter the door, the sound disappears immediately, don't you think it's too much of a coincidence? ”

Yue Ming groaned: "It's really a bit like being told by you. ”

"The answer is very simple, the sound in front of us either lures us in or tries to intimidate us, the melody is important, but the distance from us and the success of the cover of the door, wall and other things are the key to whether the strategy can be successfully implemented. Just imagine, if it continues to ring after we enter the door, we can easily find it in such a small space by following the sound. Therefore, the manipulator must hurry to press it down. Xiang Nanxing said, "This may be unexpected by him, because ordinary students are afraid when they hear a sound through the door." If we hadn't opened the door and gone in at that time, it would have left the impression that the piano room was haunted, just like the people before us. ”

"But we went in, so he immediately stopped......" Yue Ming showed a look of sudden realization, "I see, so he had to make sure he could see the situation in that room!" ”

"Yes." Xiang Nanxing nodded, "He doesn't need to be particularly precise in his observation, as long as he can confirm whether anyone has entered." The light emitted by my mobile phone when it is lit is a signal, and the sound when I open the door and enter is also a signal, no matter which one the other party is listening to, he needs to be close enough to the scene, so that he can see the bright light inside or hear the small sound of opening the door under the sound of the piano, and the signal can be transmitted smoothly to the sound generator inside. Standing downstairs is undoubtedly a simpler and easier place to escape than hiding in a building that is easily surrounded. ”

"I see." Yue Ming said admiringly, "You are really not an ordinary person who can reason so many things in one breath in such a short period of time!" ”

"Maybe it's because I think the same thing as the other person." Xiang Nanxing said lightly, "I was just thinking about the question of 'what would I do if it were me', after all, if there is an opponent, then I have to find a way to observe the opponent'......"

His words paused abruptly, and an unpleasant look appeared on his face for a moment. At this moment, what forcibly poured into Xiang Nanxing's mind was the game of the past. What he just said was indeed a very simple truth, but he had to experience and learn it again and again in such a place with those gambling games that pressed everything.

And these are obviously unfortunate memories that he desperately wants to forget at this time.

Xiang Nanxing took a deep breath, skipped the unfinished half sentence just now, and changed his words.

"Actually, that's not what matters to me the most." "It's just a guess, but I always feel like this person is coming for us," he said. ”

Ignoring Yue Ming, who opened his mouth wide-open, Xiang Nanxing continued: "Just imagine, today, when the legend of 'Seven Incredible Campus' has spread, there are very few students who will go to the teaching area for self-study in the evening, in fact, there is no need to wait here every night, right?" And as you complained about during the meal, we came directly after the meal, which was a bit early in time, and it was very likely that we would not encounter most of the 'incredible' events. But in fact, this was also advanced, as if we knew early in the morning that we would come in the evening. ”

He shook his finger: "And think about it carefully, if the entire 'Seven Incredibles' is artificial, should there be a person in each place who is responsible for seeing the situation?" In that case, the more people there are, the easier it will be to make mistakes. But if there were only one or two people, or at most two or three people operating the whole incident, how would he have accurately captured the first place we were going to from the beginning? ”

"Could it be that we are being followed?" Yue Ming was rarely right.

But that's not quite.

"I think maybe it's not just about tracking." Xiang Nanxing frowned, "The other party seems to have known the plans for the evening before we started to act, so they were able to grasp our movements as soon as we arrived at the teaching area. If you think about it......"

He slowed down and swallowed the second half of the sentence back into his stomach. According to this speculation, it is also possible that the other party overheard those conversations between him and Yue Ming, and they only talked about this topic when they were eating in the cafeteria and standing in the corridor after school. In the case of the former, the classmates who appeared near their table at the time were suspicious, and in the case of the latter, the scope of the suspect will be further narrowed down to the classmates in the class.

If he said all these inferences, he didn't know where Yue Ming, a single-celled creature, would want to go.

"Forget it, let's not mention this yet."

Xiang Nanxing completely stood still, raised his head and looked at the building in front of him. "The other party may cross the green belt and change lanes to escape, which we can't control, but if he follows this only walkway, then he should be in this building." He narrowed his eyes, "If I'm not mistaken, this building should be ......"

"Biological Complex." Yue Ming said affirmatively. Compared to Xiang Nanxing, who was out of breath, this single-celled creature was obviously in better physical condition, and he didn't even take a breath of air at this time. But at this moment, there was a rare solemn look on his face.

"Speaking of which, there's one of the 'incredible' events in the biology building." "That's where the free-walking human specimen is said to have been found," he said. ”

"Look at it." Xiang Nanxing immediately made a decision.

This time, the scope of the "incredible" event was the entire building, not a specific classroom, so there was no need for Yue Ming to lead the way. Xiang Nanxing strode ahead to open the way, while Yue Ming followed step by step, guarding the surroundings. Maybe it was because walking with Xiang Nanxing did give him a sense of security, or maybe it was because he found that someone was manipulating behind his back instead of being done by ghosts, his originally tense nerves suddenly relaxed, and his senses that were somewhat closed because of nervousness gradually opened. At this point, Yue Ming, who was supposed to be the main explorer, could finally be regarded as a qualified helper.

But even so, after a few minutes of walking into the building, they couldn't find any useful clues. Aside from the sound of their footsteps, there was a deathly silence in the building, with no sign of anyone or anything moving. Xiang Nanxing even quickened his pace when he got to the back, and it took a few minutes to patrol all the corridors on the five floors, and the rooms also knocked on the door in turn to confirm, but he didn't get anything.

"Where's the equipment room?" Xiang Nanxing suddenly asked.

Yue Ming was slightly stunned, and then immediately reacted. The two of them each picked up a mop and broom in the corner of the hallway to use as weapons, and when they were ready, they cautiously approached the equipment room on the first floor. Yue Ming took out his large bunch of keys again, selected one and put it in Xiang Nanxing's hand solemnly, and took a step back at the same time, the meaning of which was self-evident.

"You don't have to be so cautious." Xiang Nanxing's belly slandered. But at this time, they were already in front of the door, and it was superfluous to say anything, Xiang Nanxing took a deep breath, inserted the key into the lock hole as fast as possible, turned the lock, pushed the door vigorously, and at the same time pushed the broom forward, like a wooden knife in a posture against the enemy.

"Don't move!" He didn't care if he saw anything or not, he shouted first. There was indeed a short figure in the corner, who was too frightened by him to move, but when Xiang Nanxing saw the situation in the room clearly, he couldn't help but smile dumbly, and slowly lowered the broom in his hand.

At this time, the small room was empty, and this thing he suspected of being a "little enemy" was actually the target of their trip, the haunted mannequin.

"So that's it! Scared the hell out of me. Yue Ming patted his chest and said, looking like he had palpitations. He was still calming down at the door, but Xiang Nanxing had already stepped forward to investigate this thing carefully.

After walking two steps, he suddenly felt a strange touch on the soles of his feet, and quickly took out his mobile phone to light it up. At this look, Xiang Nanxing's brows suddenly furrowed.

What he saw was a muddy footprint that hadn't dried yet!

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