This was my first time on a university campus. Although it is summer vacation, there are still a lot of people in the school, especially on the court and square, most of them are students who love sports, and the end of summer and early autumn is their most active season.

Dawu and Lin Siqi have been listed as "key targets" by the school, and it seems that they will be targeted as soon as they enter the campus. Just in case, this time I acted alone, we contacted by voice, and under their guidance, I finally found the laboratory building where the incident occurred.

Maybe it's because I've been following Master since I was a child, and I'm relatively old, even if I say I'm a senior, some people believe me. I didn't need to check my documents to enter the building, so I walked in with my head held high. Remember, at this time, you must be confident, the eyes of the security guard are thieves, the more you are afraid, the more he can find out that you have a problem, and then it will be bad to detain you to check your student ID.

Because it was summer vacation, there were not many students in the building. I pretended to be casual and went straight to the chemistry lab on the third floor, which was the scene of the crime. But the lab was locked, and I couldn't get in.

"Two big guys, I can't get in here." I spread my hands and said to the two people on the other end of the phone.

"You think of a way!" Lin Siqi's urging voice came from the headphones.

"What can I do?" I leaned against the door helplessly and said, "Why don't I find a locksmith?" ”

"Then you might as well smash it open, you still have time to run with your hands and feet." Lin Siqi said angrily.

Dawu interjected, "Why don't you try to enter through the window?" ”

I was speechless and said, "Big brother, this is a teaching building, not a residential building. Each classroom is four or five meters high, and you and I are Spider-Man! ”

There was an instant silence on the other side of the phone, and it was obvious that they had no choice. Before I came, I swore that the laboratory would not lock the door during the day, perhaps in order to prevent them, and they deliberately locked it.

"Brother Chen, you just have to think of a way again~" Lin Siqi said deliberately.

I was scared out of goosebumps by Lin Siqi, wiped my cold sweat and asked, "No, what do you want me to go in?" ”

"Let's see if there are any doubts and clues!" Lin Siqi blurted out.

"Isn't there a window on this door, I'll just look here."

Lin Siqi said reluctantly: "If you can't get in, you can only do this." Hey, maybe there's evidence left by the murderer inside. ”

"Even if there is, it will be burned out, even if it can't be burned, the police are not decorations, can it be our turn?"

I retorted as I looked inside through the small window in the door. The room was still dark and smoky because of the fire, but the walls had been painted with fresh paint, and the school was definitely preparing to renovate. The site has also been specially cleaned up, the test benches are empty, and the new experimental equipment has not been placed. In the open space at the door, you can still see the traces left by the long-term placement of the garbage can, leaving a circle of black stains on the ground, which should be caused by the fire burning along the garbage can. Next to the trash can is next to the test bench, and on the shelves you can still see some burned and mutilated labels, some of which can be recognized as chemical elements, and the one on the far side has a "lamp" written on it, the first few words have been burned.

I described it all and then said quite seriously, "I found something very important. ”

"What is it?" The other two excitedly said in unison.

"The scene is almost destroyed, and every minute I spend here is a wasted time."

Lin Siqi said disdainfully: "Cut, I think it's because you can't observe." ”

"Classmate, what are you doing?"

I was intently observing the scene when someone tapped me on the shoulder and called me, which startled me. I hurriedly looked back, and it turned out to be a cleaning aunt, who looked quite young.

"Auntie, my ...... It's down inside, and I'm trying to figure out how to get in. "I was in a hurry and made up a reason, and after I finished speaking, I admired my wit.

Auntie didn't hesitate, took out a bunch of keys from her pocket, and said while opening the door: "No one has come to do experiments in the past few days, and you also sneaked in in the middle of the night to explore, you children, it's really nonsense......"

I didn't listen to my aunt's ideological education at all, but I said "thank you" again and again, and at the same time quickly went into the laboratory, pretending to be looking for something everywhere, but in fact checked every detail of the laboratory. The lab bench in the center was indeed different from the one next to it, much like the explosion point in the incident, and it took me at least six or seven steps to get there from the trash can at the door, and the straight-line distance might have been a little shorter. If it really exploded here, but it caught fire at the door, it doesn't make sense anyway.

"Did you find it?" Aunt Cleaning urged at the door.

I shouted, "No, I probably fell somewhere else." ”

"Something, I'll keep an eye on it for you." Aunt Cleaning said kindly.

"It's nothing, forget it, if you lose it, you lose it, it's not worth much."

The aunt began to sigh again: "You children, you are very arrogant all day long, anyway, you spend your parents' money, and you don't know how distressed." ”

In the face of my aunt's teachings, I only giggled, and the two people on the other side of the phone were also trying to hold back their laughter.

Just as I was thanking my aunt again and preparing to flee, I happened to look up and see the camera diagonally opposite the laboratory. From the angle of the camera, you can definitely take a picture of the doorway, and the trash can where the fire started is right at the door, so even if the door is closed, there is a good chance that you will be able to take a picture of it through the window!

What other clues, there is a pair of electronic eyes that have been watching there!

"I'm going to the security guard now to ask for a video, and the camera on the other side should be able to take pictures of the scene." I rushed downstairs and spoke eagerly into the microphone.

Lin Siqi directly vetoed my idea: "Forget it, how can you give it to you if you want someone to do it, didn't you see that the school 'blocked' the two of us?" ”

"Why don't I find the officer Fang who helped us before, and the police should be fine, right?" Dawu proposed.

"Clever! Look at people, there is a way immediately, and some people will only talk about it. I said angrily.

Lin Siqi was not to be outdone: "Some people can't speak, don't speak, believe it or not, I have a 'forbidden talisman' in my hand, so that you can't speak for a day!" ”

"What 'Fu' is so powerful, can I change careers with you?"

"This is amazing, I have an even more powerful 'talisman', ask my aunt and grandmother to subdue you!"

Since the two of us started arguing, Dawu hasn't spoken again, maybe it's because the police officer contacted Fang. Soon there was news over there, and Officer Fang heard that this was the case, and directly persuaded us to dispel our thoughts, because the expert group had long considered the issue of surveillance video, but the video on the day of the fire could not be saved to the hard disk due to hardware and technical reasons. According to the school leaders, this is an old problem with the camera, and they replaced it with a new batch afterwards to ensure that such incidents will not happen again.

The trail is broken again.

I'm frustrated, we have a way to deal with ghosts, but now we're dealing with people, even machines, and it all seems to have come to a dead end.

"Someone has been chattering for a long time, and it's useless!" Lin Siqi deliberately sneered.

I was too lazy to argue with her, and the case had reached a dead end, leaving me with a deep sense of frustration.

"I don't believe it, the police investigation report is gone, the surveillance video is gone, there must be someone behind this!" Dawu roared indignantly.

Lin Siqi said dejectedly: "Do you still need to say it? But what can we do, the surveillance video must have been deleted, can we still summon the spirit to summon it back? ”

Wait a minute! If someone deleted it......

"I've got a way!" I exclaimed, "I have a dead friend, he's a genius hacker!" ”