Li Xu first asked Fu Cheng about the specific situation when he was attacked by the female patient named Jiang Tian in the Blue Sky Rehabilitation Hospital, and asked him if he was very close to Jiang Tian when he staggered by.

Fu Cheng replied: "Yes, it's very close, the road for walking is a little narrow, and when it was staggered, the girl touched my shoulder, and then stopped to look at me, but I didn't pay attention to it because I was holding my mother, and I didn't raise my head." ”

Then, Li Xu asked him if he had any birthmarks or special patterns on his back.

Hearing this question, Fu Cheng was taken aback, and his expression gave an affirmative answer. After a brief chat between the two of them, he took off his shirt and showed it to the people present, and there was an identical eye at a place about the same place as Li Xu's back.

Fu Cheng remembered very well the time when his eyes appeared on his back, it was three days after he was attacked by a female madman named Jiang Tian in Lantian Rehabilitation Hospital.

On the day of the attack, the rehabilitation hospital was afraid that he would have internal injuries or something, so he accompanied him to the people's hospital for a comprehensive physical examination. The next day he was going to a neighboring city for an academic conference, and before he left for the meeting, his sister noticed a bruise on his back, which he thought might have been caused when he was thrown to the ground the day before, and didn't pay much attention to it. It was about twelve o'clock in the evening when he rushed home after the meeting, and when he woke up, his wife screamed, because the horrible eye on her back was looking at her, and she almost didn't scare her to death.

At this point in the conversation, there is a deviation in thinking.

Li Xu had always thought that the eyes on the back were a marker for the murderers to lock on to their targets, thinking that their eyes had some kind of see-through function that could penetrate other people's clothes and see the skin to lock on to the prey, but Fu Cheng didn't have eyes on his back at all before he was attacked by Jiang Tian, so this had to be reconsidered.

While imagining the staggered and outdated scene of Jiang Tian and Fu Cheng at that time, she thought that the contact between people and the outside world was nothing more than sight, hearing, smell and feeling. Visually speaking, she couldn't see anything special or wrong on Fu Cheng's body or face, but he was just an ordinary-looking man, so ordinary that he could immediately forget his appearance as soon as he turned around, and there was no problem with his hearing, his voice was average, and there was no special movement when he walked.

What about the sense of smell?

While thinking, Li Xu took two steps forward, walked closer, and slightly stood on tiptoe to Fu Cheng's neck and sniffed it.

This somewhat overly intimate move startled Fu Cheng, but he still steadied his body and did not retreat impolitely.

Li Xu didn't smell anything, so he wanted to think about the feeling, but suddenly he had a flash of inspiration and was enlightened.

A real Daigo empowerment. It was even at that moment that she personally understood the meaning of the idiom "Daigo empowerment".

This is the right place to start.

Olfaction!

Li Xu has a special, secret smell, which is a natural body fragrance, which she can't smell by herself, and most people around her can't smell it, only people with olfactory ability beyond ordinary people can smell it, such as Shi Ling, and forensic assistant Xiao Zhao, they all say that she has a faint plant fragrance, like medicinal herbs.

What if Fu Cheng also has such a taste? What if every victim of the "Human Skin X Case" has the same smell? What if all those who have experienced something in the tomb of Chenjiawu and become mentally abnormal, behave strangely and have a lethal sense of smell? If skin, appearance, and physical fitness can be changed, why can't the sense of smell?

What's more, how many details related to smell are in this case, Shi Ling said that Qiao Lanxiang has a smell, that Shi Lianjuan has a smell at the scene of decay, that Bai Milan has a smell, and that Li Xu has a smell, she said that these smells are a bit similar, but they are all different, there is a difference that is not clearly described, if you use perfume as a metaphor, you can refer to the common smell of these people as "tone", and then have different effects because of different formulas.

Li Xu suddenly felt that it had already made sense here, and he just needed to verify it.

When her mind was spinning about these, her body had been leaning forward on tiptoe, very close to Fu Cheng, and Fu Cheng didn't know what she was doing, she was a little nervous, but she thought she was a policeman, and there were two policemen standing next to her, so she didn't move, and her expression was quite embarrassing. After a while, he couldn't hold back, moved his eyes to look at Li Xu, just as Li Xu had a conclusion in his heart, he was raising his eyes to look at him, there was a deep chill in her expression, which Fu Cheng couldn't control, and subconsciously took two steps back.

Li Xu asked He Zhiqin to immediately call the forensic assistant Xiao Zhao over.

When Xiao Zhao came, Li Xu retreated farther away so as not to confuse the smell on his body, and then asked Xiao Zhao to slowly approach Fu Cheng, telling her to shout when she smelled the smell.

Xiao Zhao took a step closer and sniffed carefully, and sniffed again, until it was very close, and the two of them were almost fifty centimeters apart, Xiao Zhao stopped, nodded desperately at Li Xu, and said: "There is a smell, the same as the one on your body, and the same as the one at the scene of Chai Jin's murder before." ”

Xiao Zhao said that the only difference between the three smells was that the smell she smelled at the scene of Chai Jin's murder was much stronger than that of the two of them, and after investigating the scene, after Chai Jin's body was sent to the autopsy room, there was no special smell.

Li Xu told us that she did think it was strange at the time, but then after being prompted to think about it, there is nothing strange about it, the truth is the same as some flowers, the more they bloom to destruction, the heavier the fragrance, there is a kind of desperate meaning. When Chai Jin died, all the smell in his body was in the air, the doors and windows were closed, and Xiao Zhao was the first batch of law enforcement officers to arrive, so he naturally smelled a much stronger smell than usual. After the corpse is transported to the dissecting table, the smell has already been dissipated, the person is dead, there is no metabolism, and naturally there is no regeneration of body odor.

After Xiao Zhao left, Li Xu thought that Fu Cheng was also leaving, so he instructed him a few words: If you are not too disgusted, please use some men's perfume when you go out; Don't get too close to strangers as much as possible, if a stranger asks you out, no matter what the reason, be sure to go with more than two or three people, and choose a public place to meet as much as possible; If you notice that someone has a special interest in your smell and smiles at you inexplicably, be careful and call the police if you feel the need.

After saying something like this, Li Xu asked the police officer who picked him up to send him back.

But Fu Cheng refused to leave, saying: "The more I hear about this matter, the more mysterious it becomes, as if I will be in danger at any time." ”

Li Xu really didn't hide this, because she couldn't hide it, she said: "Yes, there may be danger, I'm just like you." ”

Fu Cheng asked a few more questions, but Li Xu blocked them on the grounds of confidentiality. Fu Cheng thought for a while and offered to look at the photo of the eye on his back, he said that he had always felt that the thing on his back was disgusting, and he always wanted to find a hospital to get rid of it, so he never looked at it carefully. Li Xu thought about it, gave him the photo, and asked someone to pour him a glass of water, and sat there with him to look at it slowly.

Fu Cheng is a high-achieving student who has returned from studying abroad, majoring in urban design, and he can see that the red curved lines in his eyes are maze diagrams, and the structure is very complex, and he can't draw any conclusions without in-depth research. He remembered that he had seen a similar picture elsewhere before.

Li Xu was stunned for a moment, never expecting to get some clues from him.

It was when she looked at Fu Cheng that she figured out the puzzled question.

When they investigated the common points of the victims of the "Human Skin X Case" before, they came to a conclusion that "they have a very high IQ and are cautious and organized", at that time they all felt funny, and felt that this could not be used as a criterion for the murderer to choose a target, but now, Li Xu gradually understood a little.

Those commonalities are really not the criteria for the killer to choose his target.

Rather, it should be the attributes of the victim.

Common attributes.

Li Xu carefully recalled the background reports of several deceased, and also recalled Yu Tianguang's style of doing things when he was alive, comparing his own situation, and then looking at Fu Cheng in front of him, all of them were born with a certain special fragrance of "black bone people", that is, the slaves and their descendants used by the Leixia people to test medicine, they were infiltrated with the developed medicine and pharmacy of the Leixia people, and they were born with a high IQ species, and high IQ and orderly work are their attributes.

Not all high-IQ people are black-boned people, but as long as they are black-boned people, they must be high-IQ.

This was just a conjecture more than four years ago, but later, after Li Xu officially entered the research center, he learned that the original conjecture had already been confirmed by various experts with various tests, instruments, and appraisal data, and it was one of the secrets of the research center.

That day, Fu Cheng used paper and pen to draw down the dense lines in his eyes, this kind of meticulous work is not something that ordinary people can do, it requires extremely powerful eyesight, and it happens that Fu Cheng has it.

After the description, Fu Cheng looked at it a few more times, nodded affirmatively and said to Li Xu: "Half a year ago, I came to Jiangcheng to hold an academic conference, and at the meeting, a woman came to me with a picture similar to this one, and in fact, she didn't ask any questions, just chatted casually and left. ”

He said that the woman didn't take the picture she had brought with him, but he didn't care, and he left it aside, and he didn't know if he could find it after a long time.

Li Xu listened nervously, and his eyes were straight.

Fu Cheng lowered his face and recalled for a while, and said that it was a beautiful woman, but he couldn't remember the specific facial features, because she took the initiative to chat with him that day, and several colleagues next to him were very envious, saying that he had a beautiful fortune, so he was a beautiful woman in his impression.

A beautiful woman.

Li Xu remembered it very carefully.