hexagram says

Du Bo did not continue to explain: "Are the accessories for these instruments provided by the school?"

Li Xun was stunned for a moment and nodded, "Yes, like reeds or strings, if they need to be replaced or repaired, students only need to fill in the maintenance form, and the school will purchase and repair them after confirming that they are correct."

"Did the piano be reported for string maintenance recently?" Du Bo frowned, he never thought that a student would do such a vicious thing.He would rather believe that it was just an ordinary prank than the student's intentional intention to hurt others.

"I want to check, there is a repair list in the warehouse." Li Xun led Du Bo and the others to another classroom, opened the door and entered.

Feng Feiyi kept thinking about what Du Bo said just now, and then recalled what he saw in the piano room, as if... There was indeed a momentary reflection behind the piano, but he didn't care.

Different from these spacious and bright classrooms next to it, the warehouse is full of dust, there is a strange smell in the air, and things are placed in a mess, most of which are damaged musical instruments and accessories.

"Piano, piano..." Li Xun walked to the front of the cabinet, took out a thick book from it, and searched page by page.

"I found it. The piano just applied to replace two strings a few days ago, and the result was approved." Li Xun showed the record to Du Bo.

"What about the replaced old strings?" Du Bo crossed his arms and embraced his chest, watching Li Xun's movements.

"I remember, it should be here." Li Xun immediately turned and walked towards a big box, "It's full of piano wires."

Li Xun knew this warehouse very well, and even knew where everything in it was placed.Du Bo had asked before that the calligraphy class that Li Xun was in charge of did not involve the music class, and he was not the person in charge of the music class.How could he be so familiar with the warehouse dedicated to the music classroom?

"Eh? Why is it missing?" Li Xun squatted there and turned around for a long time, his movements gradually becoming restless.

"What's missing?" Du Bo had already guessed, because the two replaced wires were just torn off by him, and they were in the piano room.

"The replaced old wires should all be placed here." Li Xun kept rummaging, and finally emptied out the entire box.

"There are so many, how can you recognize which one it is?" Feng Feiyi picked up a string from the ground, and quietly scratched it on the corner of the table next to it. Sure enough, there was an obvious scratch on the corner of the table. .

"After each thread is replaced, the end will be wrapped with tape and numbered." Li Xun still squatted on the ground to check the end of each thread.

"Don't look for it, take us to the monitoring room." Du Bo stopped Li Xun's movements.

"The monitoring room is not open now. It is only open from 5 pm to 5 am the next day. You can't get in now." Li Xun shook his head.

"The police are handling the case. I hope you can cooperate. If you don't cooperate, I don't mind applying for a search warrant." Qi Pingwen threatened and sang red faces.

"We only check the surveillance for a period of time, not all of it," Du Bo said.

The new strings were just replaced yesterday, which means that the piano has been using the old strings before.Just check the monitoring in the piano room yesterday and today, and you can see who arranged the strings.

"Director Li, why did you fill in your name as the approver here?" Qi Pingwen flipped through the maintenance list, "I remember you said before that this place is not under your control, right?"

"Student Xiao is familiar with me, and it's also close to the opening day, so he wanted to change the thread quickly, so he wanted to open a small back door through me." Li Xun said in a low voice, "I also found the responsible teacher to do it. If it is approved, it cannot be said.”

"But he doesn't have a good relationship with you." Although Ji Xuanjing didn't quite understand complicated emotions, he could tell that when he was in the piano room just now, that boy had a bad look towards Li Xun.

"Children, they are more or less shy." Li Xun chuckled, not caring about Ji Xuanjing's words at all, "I guess this string is also a surprise he wanted to give me, children are getting more and more mischievous nowadays. "The meaning in these words is to excuse Xiao Wenjun who almost killed him!

"Open House? Is this student going to perform at the Open House too?"

"Yes, he's the most important program, so you'll have to watch it tomorrow." Li Xun led Du Bo and the others out of the second-rate corridor, "I also have the surveillance video, or don't go to the surveillance room, go directly to me." Check it out in your office."

Li Xun doesn't want Du Bo and the others to go to the monitoring room now, because the control of the monitoring room is not in their hands now.Now if Du Bo and the others are rashly allowed to pass, it will break the rules of the "game", and they will all die.

"Alright." Qi Pingwen agreed.

The staff office is on the 4th floor of the main building, where the prefects and the staff of the student office usually work on this floor.

Since Li Xun is already the director of the student office, he has his own separate office.His office is on the side near the drinking fountain, and the door plate says "Director of the Student Affairs Office" in big characters.There is an elevator in the main building, but it is generally only used by faculty members or inconvenient students.The elevator is on the left side of Li Xun's office, which can be said to be very convenient.

"Most of the surveillance videos in the school are stored here. The student office receives a lot of opinions about students and teachers every day, and there are some trivial matters that need to be dealt with. In the past, the surveillance was stored in the security department, but later because of our work needs , so it was directly handed over to the student office for management."

"We only keep files for three years, which happens to be the entire time a student has been in No. 3 High School in the city, so that we can investigate any problems in a timely manner. But the monitoring of the dormitory is independent of us. The monitoring of the dormitory The video is kept in the dormitory management department, and similarly, if there is a problem in the dormitory, it will not be managed by our student department."

"Officers, may I ask when and where do you want to check the surveillance?" Li Xun started the computer and opened the folder, where all the surveillance videos were stored in detail according to the classroom location and time.

"Yesterday to today, the piano room." Du Bo didn't believe Li Xun's so-called "prank" at all.Even he, the first time he entered the piano room, didn't find these strings stretched in the air.It was only at a specific angle for a moment that the strings reflected light that he discovered the mystery in this room.

To be honest, he didn't believe that a high school student in his teens could do such a precise arrangement.If he really did it, then he must have studied it systematically.With such a strong and obvious motivation, and there are so many corpses on the mountain behind the school, he has no reason not to suspect that this student has a tendency to endanger/harm/society/society.

"Piano room? Officer Du, you don't really take the children's games seriously, do you?" Li Xun said in surprise, and his subordinates also slowed down the speed of moving the mouse wheel.

"You guys are the ones who value fairness and justice the most. You won't suspect an ordinary student just because of a small joke, right?" Li Xun only realized now that his attitude of refusing to stop it just now was too obvious, and he wanted to cover it up His stuff was fine, but it misled Du Bo and the others to another level.

"Not to mention that no one was injured, right?" He didn't take Du Bo's words seriously at all. Rather, his confidence seemed to be speaking to Du Bo and the others.

No matter what happens, I know that I will not die.

"I just want to understand, Director Li, don't over-understand." Qi Pingwen sat on the sofa with Erlang's legs crossed, and looked at Li Xun playfully.

"Or, you know, this student did this on purpose, premeditated?" After singing together, Du Bo and Qi Pingwen successfully set out Li Xun's words.

"How is it possible?! By the way, yes, I want a video, right? I'll look for it now..." Li Xun understood that it was useless to talk too much in front of these two old foxes, so he closed his mouth and began to click the mouse randomly.

"See." Seeing that there was nothing wrong with him and Ji Xuanjing, Feng Feiyi went to Ji Xuanjing's side and started chatting.

"What?" Ji Xuanjing was puzzled.

"These two people can be said to be the two magic weapons in the game before. As long as they make a move, there is nothing they can't do."

"Oh." Only then did Ji Xuanjing understand that Feng Feiyi was explaining his "red and white face" to him.

"To be honest, I never thought that the boss would be with anyone before. He has always been alone, like a lone wolf. I admire you very much. One is that you can make the boss give up on you, and the other is that you Humans are indeed worthy of our boss."

"I see you've been walking with your head down. What did you think of? Let's share and listen?" Feng Feiyi bumped Ji Xuanjing's shoulder.He is a person who has a vicious tongue and an iceberg to people he doesn't know well. Once he has identified a friend, he can be a slapstick to a friend.

"I didn't think about anything." Everything that Ji Xuanjing could see and think of was linked to ghosts and gods, and it was impossible to tell Feng Feiyi, an ordinary person.

"I also saw the line that the boss said just now. Although the boss reminded me, it was an afterthought." Feng Feiyi didn't pursue Ji Xuanjing, but instead dragged him and began to talk about what he had observed.

"The big staircase just now has 23 steps. The whole building makes people feel dizzy. It may be a design problem."

Ji Xuanjing slowly retorted in her heart: because of the shroud of yin and ghost, some real things will become less obvious, and people will have hallucinations.But for a person like Feng Feiyi with extremely keen observation and memory, such an illusion would only make him feel a little dizzy.

"There are also those cameras, some of which have strange angles." Feng Feiyi leaned close to Ji Xuanjing's ear and said softly.

"The angles of some cameras are dead, facing the sky, facing the corner at the end of the corridor, and another one, facing the mirror."