Seeing that everyone understood, Du Lin continued: "Before the first male deceased jumped off the building, he wrote on the roof of the building 7 to the fourth power, which is 2401, which is the number of days, divided by 365, which is about six and a half years to become an adult. And six and a half years later, the second female deceased wrote the third power of 7, which is 343, before jumping off the building. On the 343rd day after her death, today, there will be a third deceased, the girl just now. When I went to see her just now, her fingers were scratching two sevens on the ground, that is, if we don't stop this today, not only will she die, but in seven hundred and forty-nine days, there will be a fourth dead person. And so on, a fifth dead person will appear in fifty-six days, and what will happen after that, I can't say.

Professor Wang was dumbfounded when he listened, "Dulin, although I really want to believe you, what you said is too mysterious for me to believe. ”

Du Lin said, "Professor Wang, you can not believe me, but we can give it a try. Please be sure to empty the entire dormitory building before it gets dark and bring the girl to the dormitory. ”

Professor Wang said: "It doesn't matter if it's empty, anyway, after the haunting spread, the students in this building basically didn't dare to live here, but bring the female student back...... Nothing could go wrong, could it?"

Du Lin smiled, pointed at Li Xian, and then at himself, and said, "My Professor Wang, you see, there are doctors and policemen here. He looked at Gu Amei, who was standing on the side with a big umbrella, and wanted to say that there was also a yin and yang eye and a ghost with powerful mana, but he still swallowed the words back.

Professor Wang thought for a moment: "Okay, no matter what, you must protect that student. No more dead people. ”

At this time, there was still a long time until the evening, and Du Lin asked Professor Wang to take Li Xian and Mo Anran to find relevant information about the two students who jumped to their deaths before. Du Lin and Gu Ah Mei stayed in dormitory 407 to observe the situation here.

It's a very ordinary girls' dormitory, there are 6 beds in the dormitory, and the damn girl lives in a bed next to the door.

In other words, as soon as you open the door from the outside, the first thing you see is the girl's bed.

In terms of feng shui, this location is not good. Because as soon as the door is opened, the yin wind and thief wind outside will blow directly on this bed.

The bed was a little messy, and on the desk below, there were some medical books scattered around, and some fashion magazines. The other tables and beds were clean, probably because their owners had planned to leave the dormitory building and would not be coming back anytime soon.

The girl had a photo of her and her parents on her bookshelf, downstairs in the dormitory, and it looked like a photo of her parents on the day they sent him to school.

After a while, the doctor at the hospital sent the girl to her dormitory.

I saw her climb directly into her bed, hugging her legs, and squatting in the corner of the bedside against the wall, exactly the same posture as in the hospital room.

Her mouth still kept muttering: "I don't move corpses, I don't learn to dissect ......" her fingers kept drawing two "7" characters on the bed, and due to the long-term friction with the ground, the skin of her fingertips had been worn out, and she was wrapped in gauze by the nurse.

Li Xian and Mo Anran took back the relevant files of the two students who jumped off the building from the school's archives, but no matter how you look at it, these are two normal medical students, and there is nothing special about these two students from the information.

Du Lin thought about it, suddenly picked up his phone again, calculated 7 to the 5th power, and got the answer 16807, which is 46 years when converted to adulthood.

Li Xian immediately understood what Du Lin meant, and said, "I'm calling people now to find out what cases happened here 46 years ago." ”

"Not 46 years ago, but 53 years ago, and you don't forget the six years between the first and second deceased, and the year from the second deceased to the present," Doolin said. ”

Li Xian patted his head, "Yes, I almost forgot about this." ”

When it was time for dinner, several people ordered takeout, although the girl looked crazy, but she also knew how to eat, everyone finished dinner, quietly waiting for the night to come.

Minutes and seconds passed. It's getting darker. The Zhonghu City Public Security Bureau finally came with news. Fifty-three years ago, there was a suicide here.

It's just that the place where the incident took place is not the 4th floor of this red building, and it can't be here, because 53 years ago, this building didn't exist.

The place where the suicide took place was the specimen building not far from this building.

Du Lin knows that according to the school history, the predecessor of Zhonghu Medical University was Zhonghu National Comprehensive University, which was founded in the old Chinese era, and was renamed Zhonghu University after the new Huaxia, and has always been a very powerful comprehensive institution of higher learning, but in the 80s, when the national colleges and universities were adjusted, Zhonghu University was divided into three, and the normal departments were assigned to a new site on the other side of the city, and Zhonghu Normal University was established, and most of the other majors were moved to the provincial capital and renamed Dongjiang University. The medical school remained on the old site and was renamed Zhonghu Medical University.

And this specimen building, before the split, was the seat of the Department of Mathematics of Zhonghu University.

According to the archives of the Public Security Bureau, 53 years ago, a young mathematics lecturer, in that unprecedented era, was suspected and persecuted by others because of his status as a returned overseas Chinese from Southeast Asia, and finally he was humiliated and committed suicide by burning charcoal in his office late at night, and the house number of his office was 507.

Du Lin left Gu Amei and Mo Anran to look at the female student, and he and Professor Li Xianwang and others rushed to the specimen building.

As soon as he entered the building, Li Xian found, "I'll go! There is no room with a number as the house number?"

He didn't know, but Professor Du Lin and Professor Wang knew that after the Department of Mathematics at Zhonghu National University moved away, the newly established China Medical University used the building as a special building to store various specimens, commonly known as the "Herbarium Building".

For example, the door of the room in front of Dohrin now has the number of "Human Torso Specimens" written on it, but there is still a mark of "507" on the door frame.

Du Lin, Li Xian, and Professor Wang pushed the door in (don't ask me why I didn't lock the door, which thief would come to the medical school to steal specimens? Or is it this kind of human specimen?), as soon as he entered the door, Du Lin was fine, Li Xian was startled, and even Professor Wang was shocked.

This is a small room, only about a dozen square meters, along the wall are placed a dozen large glass jars, each of which is soaked in formalin with a human body, there are men, there are women, there are whole bodies, there are half-bodies, there are intact, there are also those who cut open the chest and abdomen, and take out the internal organs, in short, the timid people should not come in casually.

At this time, the mobile phone in Durin's pocket rang, startling Durin.

(If you think the author writes well, please use your little hands to attract money, collections, recommendations, red tickets, whichever one is any, order a little, okay?)