The door of the iron filing cabinet suddenly opened, probably because it had never been opened, the hinges were rusty, and when they opened, they made a tooth-aching sound, which was particularly intimidating in the quiet environment.

Since the sound was small at the beginning, and it was noisy outside, when the four of them heard it, the sound was already there, and they were not startled, and at the same time slowly turned their heads to look over there, and there was a "creaking" sound in their necks, as if their cervical vertebrae were also rusty.

The filing cabinet door opened, revealing the contents inside, this cabinet is very similar to the common lockers in the corridors of foreign schools, there are several layers inside, just to place the file box, containing those files that are not commonly used, but this file cabinet is not a file box, but some black metal boxes, with vertical strip-like gaps on the side, like heat dissipation holes, which look like old transformers.

"What's that?" Liu Qingmei's raised hand was put down, and the loud sound outside didn't wake up the sleeping man, and it didn't matter if he hit or not.

Ma Jingsong walked over cautiously and looked inside through the heat dissipation hole, but he still couldn't see anything clearly, he could only see that it was also metallic, silver.

"It's just a shell on the outside to protect what's inside. Qu Wei lifted one of the boxes and took a look, and saw that the four walls of the box were welded together, and it was impossible to open it, no matter what it contained, it would take a lot of effort to take it out.

The graduates' files are stored and managed, and the students' materials are not placed here, and the archives are mostly documents, and many cabinets are empty, which can be used to put some other things, which may be put here by the teacher.

"I don't know what it's for, it's impossible to guess what it is. Qu Wei took the box out again and checked it, the box weighed about five or six kilograms, there were no screw eyes, it would not be something installed on machinery, it could only be placed like this.

"Leave it alone, keep looking. Liu Qingmei glanced back at the person lying on the desk and walked towards the door.

Qu Wei nodded and put the thing back in place, but as soon as his hand left the box, there was a "click" sound from the box, followed by a "sizzle" sound of air leaking.

"Leaky ......" He only opened his mouth to say two words, then rolled his eyes and fell down, he was unconscious before he landed, he didn't make any protective movements, the back of his head hit the ground, and there was a muffled "bang".

Wang Shengwei on the side was startled, screamed "poisonous", and then fainted, fell on Wang Shengwei, and the gun in his hand also fell to the side.

As soon as Ma Jingsong heard that it was poisonous, he pushed Liu Qingmei, who turned around, and rushed out, and at the same time, the doors of several filing cabinets were pushed open at the same time, and people wearing camouflage uniforms and full-face gas masks walked out of it, each with a gun in their hands, and two of them chased out.

This office is a trap, but it is not used to deal with these four people, but to deal with Sun An and them, as long as Sun An comes in and checks on the person lying on the desk, the strong anesthetic will be released, and he has no time to run out, and those people who are lying in ambush in the filing cabinet can rush out and catch him.

The people who were in ambush didn't want to care about Liu Qingmei and them, but they knew that Qu Wei would use the device to release the anesthetic, and if this trap was exposed, they would have to act, if Liu Qingmei and Ma Jingsong were allowed to escape, and Sun An knew about this trap, they would be busy in vain.

Joel, Lance, Vanessa and Alaska are not there, Sun An's surgery is known again, now is a good time to arrest him, the powerful orphan organization can use its strength to arrest Sun An, single people and small organizations can only use this method, it is not easy to steal food from the mouth of the big organization.

Liu Qingmei didn't have the intention of throwing Qu Wei and Wang Shenghong away from running away, hearing "poisonous", it was the right thing to do to move people from the toxic place to a larger space in time, but her strength couldn't compare with Ma Jingsong, so she was pushed out, and then heard the doors of more filing cabinets being pushed open, knowing that there was danger there, so she had to run forward.

Arima actually pushed loosely, she didn't need to look at the road, she looked back while running, and saw a person wearing a gas mask rushing out with her, frightened, raised her hand is a shot, the second shot, and in the run, the bullet failed to hit the other party at all, but the gunfire successfully frightened the people who came out and shrank back, buying time for their escape.

Ma Jingsong was frightened by the sound of gunshots, rushed to an office in front, unscrewed the doorknob, failed to twist it, and dragged Liu Qingmei to continue to run forward, ran to the office diagonally opposite, and then twisted the doorknob, but still failed to twist it, at this time, gunshots also rang out behind him.

Only at this time, Ma Jingsong knew that the other party also had guns, and would shoot at them, in this narrow corridor, the possibility of being hit by a bullet was very high, he didn't dare to run any further, and used his mixed strength to hit the office door hard.

With a loud bang, the door opened, and Ma Jingsong dragged Liu Qingmei, who was fighting back, into the office and fell to the ground.

His shoulder hurt and he fell to his knee, but now it was not the time to care about these minor injuries, he got up and closed the door, dragged a chair over the doorknob, and the deadbolt was broken, and this was the only way to close the door.

Liu Qingmei also got up from the ground, and hid in the innermost part of the office in shock, staring at the door that was blocked, she shot for the first time today, and it was the first time she was shot, for a student, such an experience will never be forgotten, whether she can leave the office building alive or not.

Ma Jingsong also ran to the corner where Liu Qingmei was, carrying another chair in front of Liu Qingmei, as if the chair could block bullets, panting violently because of nervousness and fear, looking more tired than just running five thousand meters.

Liu Qingmei looked at Ma Jingsong's back blankly, she could see that his shoulders were trembling slightly, obviously terrified to the extreme, but his actions surprised her again and again, afraid of this, he still had the idea of protecting her-or instinct-it was really commendable.

"Phew!"

The door was slammed, which made Liu Qingmei tremble, and another shot was fired, and the bullet pierced the door, but it failed to hit anyone.

And the gunfire rang out nearby, and Ma Jingsong turned his head and shrunk his shoulders, still clutching the chair.

At this time, Liu Qingmei suddenly reacted, she could hit the people outside with a gun, and the people outside could also hit them with a gun, it was not safe to shrink in this corner, and she had to go to a place where the other party had no shooting angle.

She patted Ma Jingsong on the shoulder, pointed to the corner of the wall where the door was, and whispered, "Over there." ”

Ma Jingsong also reacted, and immediately walked over with a cat's waist, squatted down again, and stared nervously at the door.

There was no movement, and the people outside seemed to be frightened by Liu Qingmei's shot.

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