Li Bing, the official in charge of questioning and recording the confessions, took the confessions of everyone, Qiao Lezi looked through them carefully, and raised his eyes to look at Young Master Yan Jiu: "These confessions are asked separately and separately for each person, and one question is asked to all the members of the art club, that is, 'Did the deceased Zhang Min offend anyone during his lifetime, or as far as you know, who had a grudge against him, or who had a complaint against him behind his back, or who had an interest in him, and who would benefit if he died', and the answer of all the members of the art club was very consistent, that is, 'no'." Zhang Min is very popular on weekdays, rarely quarrels with people, has a gentle personality, treats people sincerely, and has a good reputation in the art club - in this way, it seems that it is not much like the murder of the members of the art club present, and the motive for vendetta can be ruled out for the time being. ”

After saying this, Qiao Lezi himself was also stunned - why do you want to explain this to this kid, as if he really treats him as an adult, and discusses the case...... blames this kid for being too old, and always makes people involuntarily treat him as Yan Zike's goods.

As he was talking, Wang Yi, who went to inspect the wall, came back: "My lord, my subordinates have carefully inspected the entire wall, and there is no trace of being scratched by feet or other things. ”

"Huh, is this murderer really a kung fu master?" Qiao Lezi was surprised, "Through the confession just now, it can be seen that there is no one who knows martial arts in the art club, and the wall is seven or eight feet high, how can it be turned over without stepping on the wall? It seems that the murderer is most likely not from the art club, and I am afraid that he will have to wait until tomorrow to investigate from other people." "Let's just make up an excuse and send the kid in front of me away.

"There are three suspicious points in this case: "Young Master Yan Jiu didn't pay attention to Qiao Lezi's last two sentences at all, he held his hands and lowered his eyes, his voice was clear and low, and the speed of speech was no longer slow," First, why did the murderer choose to do it here, except for this painting wall, there is no favorable terrain that can allow him to escape from everyone's sight immediately after killing someone, if the murderer does not know kung fu, this wall cannot be used at all; if the murderer knows kung fu, it is unreasonable to choose this place where people are likely to be discovered in time, let alone kill Zhang Min with four knives.

Second, where did the paint in Zhang Min's fingernails come from;

"Third, given that I prefer that the murderer doesn't know kung fu, on this premise, how did the murderer climb over the wall with his bare hands without leaving a mark on the wall? Assuming that escaping over the wall cannot be established, then how did the murderer escape from the public eye in a short period of time?"

"The murderer is holding a knife in his hand, which shows that his murderous intent is not temporary," Qiao Lezi's train of thought was suddenly attracted by Young Master Yan Jiu's analysis, "If you want to kill someone, why don't you choose a time and place where there are few people? In today's art exhibition, there are people everywhere in the academy, if it is said that the murderer chose today to take advantage of the fact that it is easy to escape by the number of people, why did he wait until after the closing of the exhibition when the guests have left for about the same time? Is it because he has never found a chance to make a move?" But there will be an exhibition tomorrow, but you can do it again tomorrow, or you really can't wait, and you have to kill Zhang Min today, but how can the murderer ensure that he will not be seen by others when he does it in this place? It is a place that is very easy to expose, but he has perfectly escaped everyone's sight, how do you think this murderer is also planning to do it here!"

"So the murderer chose to do it here, it must be because this place allows him to escape perfectly. Young Master Yan Jiu raised his eyelids and looked at the painting wall next to him, but his two delicate eyebrows sank slightly, "It's just that he doesn't know kung fu, how did he climb over the wall without kicking the wall?"

"Or did the murderer not climb over the wall at all, but ran fast, and ran along the wall before the others heard the noise?" Qiao Lezi said.

"Unlikely," Young Master Yan Jiu shook his head slowly, "If he runs north along the wall, when he runs a certain distance, he will be seen by the people who catch up behind, because this short east-west wall and the angle formed by the murderer can no longer block the sight of everyone behind, and the farther he runs, the more everyone will see." ”

"That's right!" Qiao Lezi secretly praised the child's flexible brain, "In this case, the murderer must not have run along the wall or to the open space to the west! Then there is only one possibility left - the murderer just ran over the wall! There must have been some magic method to jump to the other side of the wall in an instant!"

This explains why the murderer chose this place for the killing, in order to help himself escape quickly with the help of painting a wall, and he thought of a wonderful way to escape in advance, and this place of murder was specially chosen by him. Young Master Yan Jiu stretched out his hand from his sleeve and slowly compared a "two", "The first question has been solved temporarily, and the following is the second one." ”

Qiao Lezi: "...... "Why are you still here?!" Why did Lao Tzu discuss the case with you again?!

"There is paint in Zhang Min's fingernails, it is sure that it is not from himself, but from the murderer, so it can only be taken from the murderer when he struggles desperately to scratch after being strangled by the murderer from behind," Young Master Yan Jiu waved at Qiao Lezi while beckoning to him, "The murderer was able to strangle Zhang Min's neck and go around the front to stab him in the ribs, which means that the murderer's size is at least not shorter than Zhang Min, and among the members of the painting art club present, Li Ran can be ruled out of suspicion first, he is a head shorter than Zhang Min." When the murderer strangled Zhang Min's neck from behind, how would Zhang Min struggle and scratch?"

"What do you call me?" summoned the beast Yan Qi walked in front of him.

"Turn around. Young Master Yan Jiu said.

Yan Qi obediently turned around, and Young Master Yan Jiu came behind her and stretched out his arm to strangle his sister's neck.

Yan Qi: ......

Qiao Lezi: ......

"Imagine how Zhang Min would struggle in this situation?" Young Master Yan Jiu's voice came slowly from behind his ears.

Yan Qi raised his hands and grabbed the arm that was wrapping around his neck: "First of all, of course I will try to pick the other party's arm." ”

"What if you can't pick it up?" asked Young Master Yan Jiu.

"It should be attacking the murderer's face," Yan Qi raised his hand and stretched back and pinched Yan Jiu's nose, "I usually want to poke the murderer's eyes, if I poke the eyeballs, the pain is difficult to bear, the murderer will let go of his hand nine times out of ten, and if he can't poke the eyeballs, the next best thing to do is to scratch the murderer's face, make it hurt and accidentally let go of his arm, or grab the murderer's hair?"

Young Master Yan Jiu let go of his sister and turned to look at Qiao Lezi: "The arms and face should be the parts where Zhang Min attacked the murderer before he died." ”

Of course, Qiao Lezi knew this: "Wouldn't it be bizarre to say that the paint in Zhang Min's fingernails was scratched from these two parts of the murderer's body? Who would get so much paint on his sleeves and face? Isn't that even more eye-catching?"

"You can't have it on your face, but you can't have it on your sleeves. Young Master Yan Jiu said, "The people from the Painting Art Club came here every day a few days ago to paint on the wall, and many of the paintings were painted with powder and lacquer, and it was difficult not to rub the paint on the sleeves and body, but ...... All the students who came to the academy today were wearing college uniforms, and it was impossible for anyone to have paint on their sleeves......"

"Could it be that the murderer was not wearing a hospital uniform when he committed the crime?" Qiao Lezi's eyes flashed, "In order to prevent the blood from being stained on the body during the murder - although the attack was carried out from behind, the sleeve of the hand holding the knife, and even the sleeve of the hand that strangled the neck may be splashed with blood, and the murderer was wearing the clothes that had been stained with paint when he painted the wall, even if the blood stains were stained on the sleeves, he could pretend to be paint, and after killing someone, he only needed to take off the clothes on his body and hide them, or he could hide them directly in the hospital uniform—— Someone, go and check the clothes of those students of the art club, focusing on the cuffs and whether there are blood stains on the skin on the arms!"

The officials responded, and Young Master Yan Jiu stretched out three fingers: "The third question, did the murderer jump over the wall, or did he use other methods to avoid everyone's attention in a short period of time." ”

"If you jump over the wall and walk, you should be seen," Yan Qidao, "Even if the people near can't see it because of the angle, how can the murderer guarantee that the people in the distance won't see it? This method is very unsafe, if the murderer premeditated the crime in advance, he will not be unexpected." ”

"However, we have ruled out the possibility that the murderer ran away along the wall or in the direction of the open space to the west," Qiao Lezi said, "and if we rule out the possibility of escaping by jumping over the wall, then there is only the most unlikely point left—the land." ”

As he spoke, he couldn't help but look down at the ground, and saw that it was a hard ground paved with blue bricks, and it was very strong and tightly paved, and it was impossible for the murderer to run away from the ground.

"All the impossibilities are ruled out, and the rest is no matter how unbelievable," Yan Qidao said.

"That must be the truth. Young Master Yan Jiu picked it up slowly.

“…… Do you think the retreat is the truth?" Qiao Lezi blinked his black bean eyes.

This has been ruled out as impossible. Young Master Yan Jiu said.

"What do you mean?" Qiao Lezi found himself a little out of tune with the children.

"The east and south are the walls, the west is the open space, you will be seen if you run to the north, the four directions of east, west, south and north are impossible, and it is impossible to go to the sky and the earth, so there is only one truth," Jiu Conan Yan said slowly, word by word, "The murderer stayed where he was, and he didn't go anywhere." ”

Qiao Lezi made a big fight: What an eerie and terrifying atmosphere! What did this kid say? The murderer stayed where he was? Who is it? Is it a ghost? Or is it that the murderer is Zhang Min himself!

Seeing that the more the child talked, the more unpleasant it became, Qiao Lezi was ready to send the two of them home to eat and sleep, but before he could speak, the official who had just gone to inspect everyone's clothes came back and reported: "My lord, everyone present is dressed in the same way, and there is no paint or blood stains from the inside to the outside. ”

Qiao Lezi's eight-character eyebrows furrowed, now the case is really getting more and more confusing, the murderer is really powerful, he can hide his whereabouts after killing without leaving any clues...... No, there is still a little bit left, that is, the pigment in Zhang Min's nails, this bit of paint slag has become the only useful clue, but it is limited to this, what can be found through this pigment, but there is no progress at the moment.

Seeing that it was already dark, Qiao Lezi couldn't help but feel a little anxious, he couldn't keep pressing these students and didn't let them go home, they were all children of official families, and it was not something that his old Qiao could afford to provoke the parents behind him, but fortunately, Zhang Min's house was a little farther away, and it would take a lot of time to go back and forth, and his parents hadn't come over yet, otherwise it would be even more chaotic.

Unable to find a breakthrough for a while, Qiao Lezi had to call everyone over one by one to ask for a confession, Yan Qi returned to Wu Yue and Lu Rong, and Wu Yue asked her: "Master Qiao said that we can go? I'm hungry, and if I don't go back, my fifth brother should rush to the academy to look for me." ”

"It should be possible, we are not among the suspects," Yan Qidao, "You and Xiao Lotus go first, I have to wait a little longer, my Xiao Jiu is there to assist Master Qiao in solving the case." ”

"Lord Qiao isn't hungry, look at the sweat of his busy head, it's been this day. Wu Yue said.

"Parents and officials, they are all worried about their lives. "Yan Qidao.

"No wonder I can't marry a daughter-in-law at this age. Wu Yue whispered.

"Don't talk nonsense. Lu Rong glared at her funny, "Such a good official who is dedicated to the people is better than the official who has a group of wives and concubines in the back house, and when something happens, he only asks his subordinates to run before and after, and he is unwilling to do it himself." ”

"Yes, yes, we have a Qingtian master in Taiping City!" Wu Yue rubbed his stomach, "No, I'm really hungry, let's find some food to eat first!" I remember that there are snacks for the guests on the table over there, let's go over and eat some." ”

Five, six, seven, and three went to the place where the table was set up in the distance, and before they could get closer, Wu Yue shouted: "Huh?!I obviously remember the snack on the table! Why is it gone?!Who took it?!"

But seeing that there were only piles of painting scrolls left on the table, which were placed there in a mess, Wu Yue paused, ran over angrily, and was about to make a fuss, but when he looked at it, he smiled again: "Oh, I saw it wrong, the dim sum is still there, it's mixed with the painting, you two come quickly, let's kill this plate first!"

Yan Qi said: "You two eat first, I'll go find Xiao Jiu." ”

Turning around and walking back, he saw that his younger brother was still there staring at the painting wall near the deceased with his hands, and slowly stepped forward and patted his shoulder, which was getting stronger and stronger: "I probably already know how the murderer escaped from everyone's sight, do you want to verify it for me?"

Young Master Yan Jiu turned to look at her: "Tell me." ”

"Follow me. Yan Qi took him back to Wu Yue and Lu Lotus, and Wu Yue hurriedly greeted: "Xiao Jiu, come on, are you hungry?"

"No, I'm afraid of getting fat. Young Master Yan Jiu said slowly.

"......" Wu Yue couldn't eat the remaining half of the dim sum in his hand.

Yan Qi took out a scroll from the painting scroll on the table and spread it out, took the paper and pen prepared on the table and handed it to Young Master Yan Jiu, and then circled a small piece the size of an egg on the painting with his fingers, and said to him: "You draw this small piece of paper that I just circled, and ask that it be the same size and pattern as possible with the original painting, and draw it." ”

Young Master Yan Jiu glanced at her, and didn't say much, sure enough, he took a pen and drew it, and it was completed in an instant, Yan Qi took the paper over, carefully tore off all the blanks next to it, and then put it on the scroll where she had just circled it with her hand, and saw that the part of the painting on the piece of paper was completely consistent with the pattern around the original painting, and if you didn't look carefully, you wouldn't be able to see that there was a small piece of paper covered here.

"I understand what you mean," Young Master Yan Jiu was not surprised, "but the paper is thin and flat, and the people are different, and they are so close, how can they not be seen?"

"People can also do it," Yan Qi looked at him, "This situation is also a kind of optical illusion, the human body from head to toe is brushed with the same pattern as the background picture, the more complex and chaotic the background painting, the more difficult it is to see the outline lines of people, not only the background painting is complex, the surrounding environment is also the more complex the better, the stronger the sense of hierarchy, the better, so it is easy to confuse the three-dimensional relationship and outline lines between various objects and planes." For example, the two walls next to the scene of the incident, the walls are all rich and colorful landscape pavilion paintings, the patterns are complex, the colors are varied, there are tables and chairs next to the wall, and there are various objects piled up on the table, such a chaotic scene, the most convenient 'invisible', especially when people hear the sound of the arrival, all the attention is focused on the dead on the ground, even if they want to immediately find the murderer's location, they will only look for a distinct image of a person in their consciousness, but will ignore the pretender who is not far from themselves and has become one with the painting wall. ”

This kind of ingenious idea, Yan Qi has also appreciated on the Internet in his previous life, called body painting stealth art, many Chinese and foreign artists have performed wonderfully, in the crowded supermarket or street, with color painting to paint the surrounding scenery realistically on the body, and then stand there motionless, it looks like invisible, and pedestrians who do not know the truth have not even found it from the past!

- Therefore, Young Master Yan Jiu said that after the incident, the murderer stayed at the scene and did not go anywhere, which is completely correct reasoning! 166 Reading Network