"It seems that I am the one who is too young." Ryoma said.

"It doesn't matter, we just want to eliminate doubts one by one and find out the truth. That's it, classmate Lin Xiao." Xiao Feng said.

Lin Xiao nodded silently.

Are you worried about something?

"It seems that the biggest problem is how the murderer got in and out of the library." The maid said.

"Let's start cleaning up this problem now, otherwise we won't be able to move forward," Ji Wang said.

"However, it is really unbelievable that you can kill Tianhai without being caught by the camera." Zhen Gong said.

"The murderer looks like a transparent person, but this disease is caused by my magic, because my magic can only make people translucent at most, and the upper body alone is the limit."

"By translucent, you mean half-transparent."

"But both doors in the library are equipped with hidden cameras."

"What about the vents in the library? Is it possible that the murderer sneaked in through there?"

"But that ventilation pipe is connected to the classroom, which is where Lin Xiao and I come to monitor."

"Then the murderer turned into a transparent person and invaded when Xiao Feng and others were not paying attention."

"Mengye seems to have a different insistence on transparency than ordinary people."

"Well, I think that's impossible. It's impossible for the murderer to sneak into the library through the vents."

Yes, there is evidence to support that possibility.

"When we set up hidden cameras in the library, just in case, I put a lot of books in the vents."

"If someone came in and out from there, the books would probably fall down, but I confirmed during the search that the books were still piled up there."

Momota: "Could the murderer move the book away from the vent and then move it back while giving a lecture?"

"It's really difficult to do these things on a narrow bookcase," the maid said.

"The vents are impossible

, it is impossible for both of you, where did the murderer come in and out of the library? Could it be that he was not hidden by the gods, but conjured up."

"There seems to be no other way in or out."

"I suddenly had the idea that the murderer might have entered or exited through the door of the library."

"Well, were you listening to our routine again? If you come in, you will be photographed."

"As long as you know the time interval between the cameras, can't you go in and out without being photographed?" Meitu said.

"time interval?"

"What is that?" Xiaochun said.

"In other words, the murderer knew that there were cameras in the library and also knew that the cameras had time intervals."

"So he took advantage of the time interval to sneak in, so that he wouldn't be photographed. Ha, it is indeed the famous reasoning of this beautiful lady."

"Hey, Meitu, what time interval are you talking about?" Xiaofeng said.

"Now that you're asking this, as you know, as long as those cameras are pressed, they have to wait for O seconds before they can take a picture." Meitu said.

"Because I originally wanted to roll the film manually, but then I rolled it automatically." Meitu said.

"This is the first time I've heard that you should tell such an important thing early," Xiao Feng said.

"What's the matter? I just told you to give the modified camera to the guy in the hat over there."

"Classmate Lin Xiao,"

"Sorry, I seem to have forgotten to mention it." Lin Xiao said.

"Forgot to say that?"

"I thought it would have little impact on candid photography, but I didn't expect it would turn out like this, so I forgot to mention it. I'm really sorry."

"Huhu, I forgot to mention it. It's such an empty excuse." Zhen Gong said.

"It seems to be panicking." Xiaoji said.

"No, you must have forgotten again, because it was a mess at that time, so you forgot to explain to us." Xiao Feng said.

"Yes, yes." Lin Xiao said.

"Whether it's OK or a mistake will be discussed later. Let's talk about the distance between the cameras." Long An said.

"Meitu, I just said the interval is O seconds."

"Well, I'm afraid you guys, whose intelligence is about the same as a freshwater lobster, I'll explain it to you.

The camera they set up will take pictures as long as the sensor is activated, because the film has to be automatically rewinded, and it takes O seconds to take a picture."

Beautiful Rabbit said.

‘So in that O second you can enter the library without being photographed.’

"If I had O seconds, it would be possible to enter the library, kill Tianhai and then escape," the maid said.

"Yes, that's exactly it." Rotor said.

"So that's the case, then there's nothing wrong. The murderer must have used the time between the cameras."

Xiaoji: "In that case, the murderer is the beautiful rabbit who knows the interval between cameras."

"Are you kidding? I have an alibi." Meitu said.

"Oh, the proof is indeed good, so are the other people who know the time interval." Xiao Ji said.

"Well, who is it?"

"Only Lin Xiao." Xiaochun said.

"Um?"

"Huhu, then the murderer who killed Tianhai in the library was Lin Xiao." Zhen Gong said.

"Yes, classmate Lin Xiao?" Xiaofeng said.

"Hey, how are you, Lin Xiao?" Bai Tian said.

"It's not you, Lin Xiao. You wouldn't do such a thing, right?" Quan Tai said.

"Don't remain silent, say a few words, silence is just an escape." Zhen Gong said.

"Please tell me clearly, are you the murderer?" Zhuanzi said.

"Classmate Lin Xiao, what's wrong with you?" Xiaofeng said.

"You shouldn't keep silent, right?" Long An said.

"Hehe, that's good. Development is becoming less and less boring."

How could it be possible that classmate Lin Xiao turned out to be the murderer? It was definitely not him, it was impossible.

"Stop being silent and say something." Xiaochun said.

"Since you can't use bad words in a sentence, it means you are the murderer, you idiot." Zhuanzi said.

"Wait a minute, it's not like that, it's impossible, because classmate Lin Xiao has been staying in the classroom with me to monitor, how can classmate Lin Xiao have time?

"You have really been together all the time." Xiaochun said; "I am asking if you have been together all the time."s

"Well, although it was only for a short time, we did separate." Xiao Feng said.

"So that's when he went to kill Tianhai?" Xiao Ji said.

"It's impossible." Xiaofeng said.

"It's not good to be emotional, if you don't want to lose your life here." Zhen Gong said.

"We should find out the truth calmly and logically."

"I'm not speaking out of emotion, I'm saying this based on evidence."

That's right, when Lin Xiao went to see the situation in the basement, it was impossible to kill Tianhai.

"Because the sensor only went off after classmate Lin Xiao returned to the classroom, and the alarm only went off because classmate Tianhai moved the bookcase.

This shows that classmate Tianhai was still alive at that time. Since classmate Lin Xiao was with me when the siren sounded, he was not hungry and could be the murderer."

Xiao Ji; "Having said that, I want to confirm something with Xiao Feng. Could it be that the person who installed the anti-theft device on the movable bookcase is Lin Xiao?"

"This? That's right, the person who installed the anti-theft device on the bookcase is classmate Lin Xiao." Xiao Feng said.

"so what?

"Xiao Feng didn't even confirm it with his own eyes. Is it indeed installed on the bookcase?"

"NO, I have not."

"In this case, it is actually a lie to install the sensor on the movable bookcase." Xiao Ji said.

"Lin Xiao just pretended to set up the sensor. In fact, he kept it until he was injured. Then when he and Xiaofeng were together, he secretly triggered the sensor and deliberately made the receiver sound."
To be continued...