"There are 15 minutes left until the end of the exam."

"Students who haven't finished writing papers, hurry up."

The slightly hoarse voice of the math teacher came from the podium.

In the quiet classroom, Zhou Zhen subconsciously opened the paper in front of him.

Neatly printed figures, formulas, and geometric figures come into view, and all the answers are clean and blank.

He was suddenly shocked, the math test, there are still 15 minutes to hand in the paper, and he didn't do a single question?!

I'm going to fail this time!

I don't have time to read the previous questions with low scores, so let's just cover the multiple-choice questions and directly do the big questions with high scores at the back of the paper!

Thinking of this, Zhou Zhen was about to start doing the questions, but after looking for a long time, he found that there was nothing on the desk except for the papers...... He forgot to bring a pen to the exam!

"There are still 5 minutes until the end of the exam."

It's only been 5 minutes??

Zhou Zhen looked anxiously at the table next to him, lowered his voice and quickly spoke: "Brother Hao, lend me a pen!" ”

As he spoke, he didn't wait for the table to answer, and quickly pulled out a pen from the other party's pencil case.

At the same time, Zhou Zhen flipped to the multiple-choice question and quickly filled in the empty brackets.

But he had only just done a few questions, and the familiar bell was already ringing......

Jingle Bell ......

"It's time!"

"Now hand in the papers!"

When the words fell, a big hand fell, grabbed the paper in front of Zhou Zhen, and seemed to be about to take away the test paper in the next moment.

Zhou Zhen hurriedly pressed the roll with his hand and said anxiously: "Teacher, wait!" ”

"I still have one last question to do! Just a few steps away! ”

As he spoke, he flipped the paper to the end, and without even having time to read the questions, he started working on the questions directly......

"Solution: ......"

The word "solution" was written twice in a row, leaving no trace on the test paper.

The refill is out of water!

In a hurry, Zhou Zhen swiped hard, and the tip of the pen immediately drew a narrow crack on the test paper like a knife blade.

"Whoa!"

The crack in the scroll suddenly opened, and the inside was dark and deep, like a black hole.

Countless numbers, formulas, geometric figures...... It's like a flood bursting from the depths of a black hole!

※※※

Jingle Bell ......

In the dimness, the familiar ringtone of the mobile phone rang.

Zhou Zhen sat up suddenly.

His face was sweating, his chest heaved violently, and he gasped for breath.

It's a dream......

He's already graduated, and he doesn't have to take any more exams!

Jingle Bell ......

The mobile phone continued to ring, very similar to the ringtone of the end of class in the dream just now.

Zhou Zhen subconsciously reached out to the head of the bed and wanted to pick up the mobile phone, but after touching it for a long time, he found that the mobile phone was not at the head of the bed.

It was dark and silent, and nothing could be seen.

Zhou Zhen calmed down, immediately turned over and got out of bed, and groped his way in the direction where the mobile phone ringtone came.

After about two or three steps, he touched a long, cold table in the dark.

After a moment of tentative probing along the edge of the table, Zhou Zhen quickly found his mobile phone.

He picked up his phone, and on the screen, the "unknown number" was constantly beating.

Zhou Zhen was just about to answer, but the call stopped abruptly at this time.

"Spam calls?"

"Work starts before dawn......"

"These days, it's not easy to do anything in any industry......

With a sigh, Zhou Zhen put down his phone and prepared to continue to go back to bed.

But the next moment, his whole body suddenly froze!

Under the dim light of the mobile phone screen, he saw that on the "table" in front of him, a corpse with a pale complexion was lying upright!

The corpse had a thick shell, a flat chest, and bare palms that were wide and rough, covered with calluses, and seemed to be a middle-aged man before his death, wearing overalls stained with engine oil, with a blurred car logo on his left chest, and large and small corpse spots on his skin full of dead intent.

The corpse spots spread along the stubby neck, and the head above the neck was covered with a dark plastic bag, covering the face.

Zhou Zhen stood motionless, until the phone screen automatically turned off, the only remaining glimmer in the darkness disappeared, and the surroundings fell into darkness again, and he suddenly came back to his senses.

Alarm!

You have to call the police right away!

Zhou Zhen hurriedly pressed the phone, the fingerprint unlock failed, and it was quickly changed to an emergency call, and his fingers trembled a little and chose the number of the alarm.

Looking at the brief numbers on the phone screen, his whole head seemed to suddenly explode, and the unprecedented pain exploded in an instant, rushing straight to his brain.

Bang......

Zhou Zhen fell directly to the ground in pain, and his mobile phone also fell to the side.

In the intense pain, he seemed to see that in the darkness in front of him, dense numbers, formulas, and symbols emerged......

After a while, the overwhelming pain finally dissipated like a low tide, and Zhou Zhen gradually recovered, and his whole body was already covered in cold sweat.

He sat up slowly with his head in one hand and the other on the cold ground.

Sure that his head no longer felt pain, Zhou Zhen reached out and touched the ground, and quickly found the mobile phone just now.

He picked up his phone and quickly dialed the number.

The phone was quickly connected, and without waiting for the other party to ask, Zhou Zhen immediately lowered his voice and said quickly: "Hello! I just woke up with one more body in the room! ”

"I live in Building 2501, Building 17, Langyun Waterfront, High-tech Zone, Binhai City!"

"The contact number is 157...... 589。 ”

"Looking at the appearance of the corpse, it may have been more than a day since it died...... Please come over quickly! ”

The operator was silent for a short time and quickly asked, "Hello, may I ask what is your name?" ”

Zhou Zhen hurriedly said: "My name is Zhou Zhen......"

The operator repeated it, confirmed the address and mobile phone number, and calmly told him: "Please don't move or destroy the scene, our colleagues will arrive immediately!" ”

After calling the police, Zhou Zhen finally breathed a sigh of relief, sat on the ground and rested for a while, the mobile phone suddenly vibrate, and the screen lit up spontaneously.

He picked up his phone and saw that it was a lock screen news pushed over: "Experts suggest that abolishing the subject of 'mathematics' can better prevent the ...... of 'digital virus'"

A "digital virus"?

What is that?

Zhou Zhen quickly shook his head, there was suddenly an extra corpse in the room, and he didn't have the heart to pay attention to this inexplicable news at all.

Feeling that his strength was almost restored, he stood up, turned on the flashlight of his phone, and shone it on the corpse just now.

The cold shell lay quietly.

The exposed part, without any wounds, could not determine the cause of death of the other party from what was observed.

To Zhou Zhen's surprise, what was lying under the corpse was not the table he thought, but a silver-white mortuary!

The range that the light of the mobile phone can illuminate is limited, and Zhou Zhen can't see it clearly, so he walks directly towards the wall and prepares to turn on the lights.

But as soon as he took a few steps, a strong chill instantly rose up along the tail vertebrae, like an invisible rope, entangled him to death.

Zhou Zhen's entire facial expression froze, his body seemed to be frozen, and he could no longer take a step.

Under the light of the mobile phone flashlight, there is no wall at all, but a mortuary welded into stainless steel pipes!

On each morgue lay an upright corpse.

The corpses were dressed in a variety of costumes, and when swept away, their wrists were exposed, some slender, some stout, some fair, some dark...... The head of each corpse was tightly covered with a dark plastic bag.

The metal of the morgue refracted a faint cold light in the darkness, and the space was so large that the light of the mobile phone could not be reached at all.

Zhou Zhen immediately realized something, turned his mobile phone, and shone around.

The mortuary shelves are neatly arranged, like carefully arranged shelves in a supermarket; On each morgue shelf, the corpses of different heights, shortness, fat and thinness lie quietly on their backs, as if they were sorted out goods on the shelves.

All the corpses had their heads covered with a dark plastic bag.

Over here...... Not his room!

It's a strange morgue!

Suddenly, Zhou Zhen felt that something had been wrapped around his neck.

He turned his phone stiffly, shining the light on himself, and looked down to see a dark plastic bag that had been torn open, hanging messily around his neck......