While guarding against enemies that may appear at any time, Ye Feifei walked around the building, hoping to find some useful clues.

To be honest, it was covered with thick dust, and it didn't look like a place for people at all, and he didn't know what the blue-collar high school group of people was for. Are you willing to work for the shopkeeper for so long?

Maybe everyone in the blue-collar high school has the Gu worms left by the shopkeeper in their bodies, but he can't monitor everyone anytime and anywhere, and being a little good to himself doesn't affect the overall situation, he will definitely turn a blind eye.

"Why?" Ye Feifei thought for a while......

The corridor is located on the first floor, but the space inside the building is like a commercial and residential office and residential building, and in addition to the rooms and classrooms on each floor, there seems to be a semi-balcony to increase the efficiency of use.

In this kind of classroom, not only can you study and live in people, but it seems that you can also store some props, and each room has a key, which is a better private space.

Could it be that blue-collar high school people are all in this kind of school? ’

It's not that Ye Feifei doesn't believe in the students' ability to receive, but he doesn't believe that the blue-collar high school actually puts the dormitory and the classroom on the same platform, which is completely like a cage of confinement.

Although the school attaches great importance to learning, it pays more attention to the harmony between classmates...... A blue-collar high school experience like a spiritual wash* is definitely the most distorted catharsis!

In addition to the masonry floors, the locks on the doors of the entire building are broken, and there are broken and rotten windows inside, through which you can even see the endless ruins outside...... Teaching Building, Wisdom Building, Renyi Building, Sports Building, Health Building, Swimming Building, etc.

Even though the academy is in ruins, the view is still quite pleasing to the eye.

Without staying too long, Ye Feifei slowly touched the fourth floor, constantly looking for the information contained here.

A classroom on the fourth floor successfully caught his attention...... The classroom, though dusty, was also dusty, but it had an eerie chill.

The door of the classroom is made of iron sheets, and the door shaft is rusty and cannot be opened, and the "404" classroom number can be faintly seen covered with rust...... The desks and chairs in the classroom have become piles of wood, and the walls are covered with faded ribbons, and it looks like there was an event going on at the time.

In that pile of wood, Ye Feifei saw some broken erasers, broken inkwells, broken pen barrels, and broken stones...... and a dark red oil painting on the chalkboard at the back of the classroom!

Slowly approaching the back blackboard, Ye Feifei felt a cool air rushing to his face, as if he had walked into the freezer of seafood wholesale, and he was caught off guard.

The back blackboard depicts a red scorpion, but the paint used is mixed with the pungent smell of blood.

Red Scorpion!

The classroom was not big, except for this red scorpion that was suspected to be drawn with blood, Ye Feifei couldn't find any valuable information.

Trying to back off, the coolness kept decaying.

There's no reason to feel this way, there's got to be something wrong with that! ’

Constantly scanning the classroom, Ye Feifei slowly put the target on the front blackboard.

The back blackboard in this classroom is black, but the front blackboard is a dark green that can be moved, could there be something hidden in it?

Although the classrooms he inspected before were also arranged in this way, they didn't give Ye Feifei a special feeling, so he didn't care about it specifically...... But the classroom of '404' is very weird, and I can't figure it out, so I can only return to the most primitive method of elimination.

Coming to the front blackboard, Ye Feifei reached out and gently tapped the board, exploring different places...... Near the edge, there was a muffled sound!

Although most of the place was muffled, the muffled sound of this place was dull, like a book inside.

Book!

Inexplicably, Ye Feifei remembered the bookstore owner surnamed Gao.

Taking out the extraordinary sickle, Ye Feifei gently pried open the mobile blackboard and found that there was really a thick black leather notebook inside. 、

'It's so secretive, it's a secret! ’

Putting away the notebook and the extraordinary sickle, Ye Feifei quickly restored the blackboard and turned to leave the '404' classroom...... According to past experience, this book is hidden so deeply, it must be what the other party wants to get in every possible way, they will definitely find it, and it is very unsafe to stay.

Walking out of the classroom for a distance, Ye Feifei suddenly listened to the two of them, and slowly turned his head to look at the corridor behind him...... The corridor was quiet, but there was a very conspicuous trail of footprints on the floor, brand new.

'That's not going to work......

After thinking for a while, Ye Feifei walked back and forth in the corridor five or six times, until he stepped on the ground and left no footprints, then he found an opportunity to hide on the top floor.

The furnishings on the top floor were very simple, nothing more than a few large stainless steel water tanks and a few solar water heaters, and he just thought about it for a while and hid in a large water tank.

Surprisingly, there was no water in the large tank, and the moss accumulated in it had dried up and withered, posing no danger.

Listening to the movement outside, Ye Feifei took out the black notebook and slowly opened it, using the light of his mobile phone to check the contents inside.

Turning the first page, it is clearly marked "Undercover Diary"!

Undercover?

'What's up with the people from Aomine High School?' Ye Feifei couldn't help but think.

[ID:007]

[Today's official undercover career, I didn't expect to encounter something terrible.

Yuan Xu, Zhizhuang and Ning Meng were unfortunately arrested when they joined and fell into their hands.

I'm new here, and they don't trust me very much, so they took this test as my vote.

My heart was painful, but for the sake of future work, I could only torture the three of them.

At first, it was okay, none of the three confided the news, and I still felt a little guilty...... Since someone was watching my every move, I had to be a little harsh on them, and even moved out of the palace to be punished.

In the end, Yuan Xu couldn't help it and made the first move.

I'm very glad that the three of them don't know me and don't know who I am, otherwise they would have to fall on the wrong side this time.

I have always hated traitors, and taking advantage of the fact that they did not see Motosu's surrender, I subtracted his tongue with scissors.

Zhizhuang and Ning Meng saw this scene, and both of them were moved and understood something about themselves.

With the loss of his tongue and the torture of his finger severed before, Yuan Xu had no way to deliver the message and lost his usefulness.

I was unrelenting about killing traitors, and after asking them for their opinions, I didn't hesitate to wipe Yuan Xu's neck.

In order to cover my identity, Zhizhuang and Ning Mengcheng took advantage of my inattention and deliberately revealed that their task was in a shoe cabinet in a blue-collar high school.

They believed the two of them, and sent for the shoe cabinet to be found, and found a box inside.

The mortise and tenon structure of the Luban lock used in the box is all made of steel, and people who don't know the internal structure can't open it at all, and they are afraid of damaging the things inside if they break it violently.

In desperation, they had no choice but to let the dealer go and let him open the box.

Unexpectedly, the box contained some kind of powerful explosives, and Zhizhuang opened the box and pounced on Ning Meng, and passed away with him.

……】

After reading a few pages of notes, Ye Feifei knew a little more about this undercover agent.

The other party was an undercover agent sent by Qingfeng High School, and he knew that Ning Meng, who was a student in a class of Qingfeng Elementary School in the fifth grade.