With apprehension, I went upstairs again. Now at the gate of 204, except for the people standing guard by the cordon at the staircase, the other on-site investigators have been replaced by those people brought by the "city bureau" police cars. And I secretly took a closer look, and the word "national security" was also written on the chest badge on the chest of their police uniform, could it be that what Team Sun said was true? Is it really someone from the national security who is investigating this time? So why come in the name of the "City Bureau"?

With a stomach full of doubts, I entered the scene again. I saw a man in a police uniform who was about 50 years old, with a Chinese face and a dignified face, standing, while our deputy director and instructor were standing beside him. Well, I guess this is the person in charge who took over on the spot.

The instructor waved at me and let me pass. After I passed, the instructor immediately introduced the middle-aged man with a Chinese face: "Zhang." This is the community police here, named Cheng Fei. He understands the situation, you can ask him. Then the instructor immediately said to me: "Cheng Fei, this is Director Zhang, you have to answer any question he asks you carefully, understand?" ”

I immediately hurriedly agreed, and saluted the middle-aged man with a Chinese face: "Zhang Chu, hello, I'm Cheng Fei, if you have any questions, please ask, I will definitely know everything." ”

"Hmm." This Zhang Chu looked at me, noncommittal, and then took off his disposable gloves, as if he was habitually taking out a cigarette, and then put it back very embarrassed, and said to himself: "Hey, how can you smoke at the scene." Really, when people are old, their brains are really not useful. Then he turned around and asked me: "That, Cheng Fei, let me ask you, do you know the deceased?" ”

I immediately replied: "Yes, Zhang Chu, the deceased Professor Wang, a retired professor of history at Fudan University, lived alone... "I told the Sun team the information I told before, and I said it again. At the same time, it also shows that it is normal to see him the day before yesterday.

After listening to this, Zhang Chu was very satisfied and said to the instructor: "Well, the information is very familiar, it seems that this Comrade Xiao Cheng is very responsible and serious in doing community work." The instructor smiled slightly: "Zhang, you have won the award, you have won the award." "Hehe, I actually know that the instructor's heart is happy. Well, it seems that I am the advanced individual in this year's institute!

The forensic doctor they brought with them walked up to Zhang and whispered a few words in his ear. Zhang Chu was slightly stunned, then immediately recovered his expression, and said to the forensic doctor: "Well, I know, continue the investigation, it seems that we were right when we took over." ”

I continued to ask: "Comrade Xiao Cheng, ah, no, just call you Xiao Fei." Tell me, Professor Wang, is there anything unusual about you recently? ”

I've tried hard to remember, but there's really nothing out of the ordinary about him lately. Because he is an elderly person who lives alone, I come to see him almost once a week, and the staff of the neighborhood committee also visit him every two days. I've been visiting him for the last few weeks, and he's been in good spirits. Every time he comes, he talks to me about his recently published book, and he dances with his hands.

After the forensic doctor took the photo and turned him over, he suddenly said to Zhang: "Zhang, come and take a look, this is very strange!" ”

"Oh?" Zhang Chu hurriedly walked over. Out of curiosity, I walked over as well.

I only saw that under the corpse, there was a blood mark pressed, which seemed to be a pattern. The forensic doctor said to Zhang: "Well, this blood mark seems to be a pattern, and the preliminary test shows that it is the fingerprint of the deceased, so it can be inferred that the deceased dipped the blood he vomited with his finger before the deceased, and then drew the pattern." ”

"This。。。。。 Could it be that the deceased wrote it before he died to hint at us?" Zhang Chu also seemed to be confused. I sneaked a look at the back on my tiptoes: this pattern is two "mouth" characters side by side, one of which has an "X" in the middle, generally speaking, the Chinese words with words in the middle of the mouth are nothing more than the words "prisoner", "country", and "trapped", but there are no Chinese words with "X" in the middle. What's more, these are two "mouth" characters, and there is no word in the middle of one of the "mouth" words.

On the side, Zhang Chu and several of his team members held an on-site meeting and initiated a "brainstorming" to discuss what this pattern means. The members of the group talked about all kinds of things: some said that it was the word "prisoner" or "sleepy", but Professor Wang was in a hurry and died before he could write it, so it was an "X". And some people say that because Professor Wang was a professor in the Department of History during his lifetime, it would be the ancient Chinese hieroglyphs and the like. Some even say that it is not an ancient Mayan script. Anyway, it seems to me that their discussion is getting more and more outrageous.

Actually, I'm thinking about what this pattern means. I also think that Professor Wang would not have painted this pattern for no reason before he died. But, with my intuition. I don't think this is literal for sure. After all, my father, like Team Sun, is an old criminal policeman who has been working for decades, and was transferred to the city bureau later. And I, as his son, have the genes and blood to be a criminal investigator in my body. In addition, I have watched detective novels such as "Sherlock Holmes" since I was a child, and I have also taken criminal investigation courses in the police academy. I should be able to think of something.

I tried to deduce, and I have an advantage, Professor Wang had a lot of contact with me during his lifetime, and I am familiar with his daily behavior, so I should be able to summarize and summarize something. But what is it?

Zhang and they discussed on the spot for a while, but there was no result, and they were ready to temporarily collect physical evidence at the scene, fix the evidence, and then go back and carefully conduct scientific experiments and analysis to see if they could extract some physical evidence.

I have nothing to do with the deputy director and the instructor for the time being, and the two colleagues from the institute who are guarding the scene are also ready to go back to the institute. I raised my hand and saw that it was already 2 o'clock in the afternoon, and it seemed that there was nothing to eat in the cafeteria, so let's go back and make some instant noodles. Hey, as police officers, we probably eat the most instant noodles.

Just as I, the deputy director and the instructor were about to go out, Zhang Chu stopped us: "Well, thank you for your cooperation today, if you still think of anything, you can contact us again at any time." Xiaofei, I remembered, you are Cheng Huairen's son, no wonder you are so similar, I have dealt with your father a few times, yes, young and promising. In addition, in accordance with internal discipline, we remember to keep the affairs of our national security dispatch confidential today. Remember, it's not the national security that's coming today, it's just someone from the city bureau, understand? "I, the deputy director, and the instructor immediately agreed.

We had just walked out of the room when suddenly there was a noise in the room, and it turned out that a member of the team had accidentally knocked over a few books on the shelf. Of course, Zhang Chu also reproached a few words: "Xiao Liu, be careful, don't be so amateurish, especially be careful not to destroy the scene." ”

The foot I had just stepped out suddenly stopped, and the deputy director and instructor who were walking in front saw me stop, and turned around and asked me very curiously, "Xiaofei, what's wrong?" Did you forget something? ”

A flash of inspiration suddenly occurred in my mind, as if I thought of something, regardless of the deputy director and the instructor, I hurriedly rushed downstairs alone, and found the secretary of the neighborhood committee and the director of public security among the "melon-eating crowd" outside. Ignoring their surprised eyes, I grabbed the secretary of the neighborhood committee on the shoulders and asked him, "Professor Wang, has Professor Wang mentioned his book to you recently?" ”

The secretary of the neighborhood committee hurriedly said, "No, what book?" He never told me about it." I immediately turned around and grabbed the security director: "Did I mention it to you?" Do you have! "At this moment, my nervous eyes are red, because of the rapid running, I can't breathe, if it weren't for the police uniform on my body, the onlookers might have thought I was a murderer.

The security director thought for a long time before muttering, "Well, no." I've never heard of any books."

I immediately turned around again, rushed upstairs, and yelled at Zhang and his crew: "I know! I know! I know what this pattern is! ”

The members of Zhang's team looked at me and ran up and down for a while, and they all looked at me in amazement. The deputy director and the instructor were very embarrassed, probably thinking that I was making a fool of myself, so they hurriedly scolded me: "Cheng Fei, pay attention to the impact, there are still so many people watching downstairs!" ”

Zhang Chu seemed to have found something, immediately shook his hand, and said to them: "It's okay, maybe Xiaofei really found something!" Come, Xiaofei, don't worry, tell me, what did you find? ”

I looked around anxiously, and just saw the blank A4 paper in the medical examiner's hand, I grabbed it, folded it in half, and said to them, "Look, what is this?" Then he snatched the forensic pen and wrote a big cross on one of the pages! Then, in a loud voice, he said, "Look! Like not! Like not! ”

Zhang Chu suddenly shouted: "I understand!" ”

I seem to have met a soulmate, and finally someone understands me! Finally someone understands me! I held up the A4 paper that I folded in half with my hand, and the "X" on it was impressive, I smiled faintly, and my heart was surprisingly calm: "That's not two mouths, that's actually, it's a book!" ”

I paused and continued, "It's a new book on historical research that Professor Wang recently published! And the cover of the book is a capital X! ”

Zhang Chu finally understood, and immediately yelled at the team members on the side: "Find!" Find it now! Find me all the books in Professor Wang's house! Don't let a single piece of paper go! ”

The team members moved quickly, and I, finally put down the A4 paper that I had been holding for a long time, and slowly closed my eyes: yes, yes, did I miss something? Right! Something must have been missed! What is it?