Luo Jianhong was taken by the police to the county hospital for a physical examination. His younger brother Luo Jianxin was not in good condition. According to the doctor, the records could only be made in the afternoon, so everyone had to wait.

After eleven o'clock, the inspection team withdrew from the scene and began to process the evidence, etc. Sun Zhisheng and the person in charge of Jingchuan stayed at the county bureau to cooperate and asked Rong Rui and Xiao Su to find a place to rest and eat first.

At this stage, the whole thing seems to have become a farce, a joke on the whim of a stranger, and the only result is to promote two old brothers who have been at odds for many years to shake hands and make peace.

But Xiao Su's intuition was wrong. Luo Jianhong felt too calm, not like a victim.

During the interrogation process, one of the things he did the most was to shake his head. No matter how the police questioned him, he said that he could not provide more details. There were no emergencies or abnormalities in the past three days, and he was even afraid of himself. The descriptions all seem so superficial.

Xiao Su felt that he seemed to be deliberately avoiding the word "kidnapping". He spared no effort to define this incident as an innocuous disturbance, and then make the major incident into a minor one.

This is not normal.

Thinking in another way, if a normal person is tricked into a broken workshop and locked up for three days and three nights, the first thing they do when they come out must be to look for the "potato chips" and find out who framed them. Absolutely will not let it go - what if?What if there is a next time?What if I'm not so lucky next time?

Who would think they lived too long?

However, with Luo Jianhong, everything seemed to be reversed. The person involved didn't care, and the police became the ones chasing after her.

After coming out of the county bureau, it was almost noon, Xiao Su was exhausted, but he didn't feel tired. Instead, he felt strangely excited. When he walked into a quiet restaurant with Rong Rui, Luo Jianhong's voice was still echoing in his head.

"Are you okay?" Rong Rui felt that his eyes were wandering, and touched his forehead worriedly, "Are you tired? I told you to go back to sleep in the car, you must go."

Xiao Su only felt his temples throbbing, brushed his hand away, and said, "I'm fine... Do you think Luo Tian's father is hiding something? I feel that he has a lot to say."

Rong Rui opened the menu and handed it to him, saying: "Eat first, don't think about work during the break."

Xiao Su took the menu and flipped through two pages casually, and couldn't help but said: "His eyes are very strange when he talks, don't you think? I remember I saw a lecture by a great god before, and he said that when people recall, they will go to Look at the upper left, and when you write a story, you will look at the upper right, because the left brain stores memories, and the right brain is in charge of creation. When Luo Tian’s father is taking notes, it should be memories, but he frequently glances to the upper right. Does this mean that So he's lying?"

Rong Rui watched him for a long time, then pulled the menu back, scanned the QR code to order.

After everything was settled, he said: "Brother, are you a policeman or am I a policeman?"

Xiao Su choked, he closed the menu and put it aside, and said: "Now I believe that you were very naughty when you were young, because I found that when you were doing things, or watching other people doing things, your brain turned very fast and you were very excited. Doesn't look sick at all."

yes, is it?Xiao Su has black lines all over his head.

Rong Rui propped his chin, looked at him thoughtfully, and said, "Really, that time in East Africa, as soon as the Lynx mercenaries pulled out their guns, you got excited and held a wrench to help me. The time Wu Xingyu was framed That’s right, you searched for evidence like a chicken blood, and told me in the middle of the night that there are microorganisms in the rainwater. And when the chemical plant caught fire, I saw you knocking the firefighters away from the window and screwing back the rusty fire hydrant... Yes, you still dare to drive a tractor without a license, smashing a rear-view mirror of others."

Xiao Su was so blocked by him that he couldn't speak. Looking back, it seemed that he was really energetic whenever he made troubles.

After talking for a long time, I finally choked out a rebuttal: "When I'm not doing things or watching, do I look sick?"

Rong Rui turned his eyeballs to the upper right, and said seriously: "No, when you're not making trouble or watching, you just look very stable and dignified."

"..." Don't pretend to be so obvious, right?Xiao Su was so angry that he wanted to laugh, picked up the menu and threw him at him, "Speak well and don't roll your eyes, what kind of attitude is this towards the elders!"

Rong Rui caught the menu and put it down, clutching his stomach and said: "Okay, let's eat first, can we talk about other things after eating?"

Xiao Su thought that he had been busy all night, and he still slept in the car for a few hours, and felt distressed again, and poured him a cup of tea: "Are you hungry? You didn't eat breakfast, it's all over. "

Rong Rui was not polite, and said honestly: "I was very hungry at seven o'clock, and I wanted to gnaw the bark, but now I'm hungry, it's okay... What about you? Still don't feel hungry?"

Xiao Su's five senses have deteriorated, and he seldom feels hungry, but after all, his body still responds: "One thing, low blood sugar will make your hands and feet go weak."

"I ordered sweet soup for you, which can quickly increase the sugar." Rong Rui held his hand very naturally, pinched his fingertips to test the temperature, and said, "Well, it's a bit cold, try to eat as much as possible later."

Xiao Su found that he didn't know when, he began to touch his various body parts calmly, not touching his forehead, holding hands, or putting his shoulders together.

Sometimes Xiao Ran would lie on his back and act coquettishly, and he would follow suit immediately, as if he would never suffer.

What kind of spirit is this...

However, Rongrui never overdoes it, accepts it as soon as it is good, and never gives him a chance to turn his face.For example, now, squeeze it and let go immediately, and put your hot tea in front of him: "Warm up your hands, I won't be able to hold the chopsticks in a while."

It was so natural and harmonious, Xiao Su had no temper with him at all, so he could only obediently hold his teacup and watch his performance.

The dishes came out quickly, and they were all light and easy to digest. The only hard dish was braised pork—this is Rongrui's taste. He likes meat, all kinds of meat, especially the kind with three points of fat.

Such is the capricious appetite of youth.

After eating three bowls of plain rice, Rong Rui was full, so he put down his chopsticks and started flipping through his phone.Xiao Su finished chewing a bowl of rice slowly, his cheeks were tired, and he asked, "Is there anything wrong? What did the old grandson say?"

"Old Sun said that the box lunch at the county bureau is really bad, so he asked me to bring him a hamburger in the afternoon." Rong Rui looked at the phone and said solemnly, "He also said that he was lonely living in a hotel alone for more than a month, scolding me for why If you don’t go back to accompany him, you will waste a bed fee and taxpayers’ money.”

"..." Who asked you this!Xiao Su was speechless.

"You just asked me, why do you have this expression?" Rong Rui grinned, put away his phone, and said, "Let's go, eat and sleep, wake up and discuss the next thing."

Xiao Su had no choice but to get up and follow. Anyway, no one wanted him to talk about things he didn't want to say.

Rongrui booked a hotel near the county bureau, the standard room was small but quiet.Xiao Su felt drowsy when he saw the white bed. He took off his coat and lay down on it, and then he didn't want to get up.

Rong Rui opened the quilt and covered him, and said, "Do you want to take off the sweater? Wear less to sleep comfortably."

Xiao Su's eyelids were twitching, his mind was still busy thinking about the case, he yawned and said, "Is there something wrong with Luo Jianhong's statement? Tell me, otherwise I'll keep guessing and I won't be able to sleep well."

Rong Rui squinted at him and said, "You're threatening me, brother."

Xiao Su rubbed his eyes, trying not to sleep.He sighed and said, "I really can't do anything about you... Yes, his dictation has a lot of loopholes, your guess about the micro-expression is correct, and his body language shows that he lied in many places. He and That potato chip should have met through other channels before, so he went to the scene according to the other party's instructions. During the three days of being trapped, something must have happened, but this matter involved some kind of stake, so he can't say Come out, his younger brother Luo Jianxin probably won't either."

Xiao Su covered his mouth and yawned again: "What could be the matter? I see that you looked carefully at the scene, did you find anything? Also, both of their brothers have water on them. In this cold day, they Why do you want to wet your only clothes against the cold?"

Rong Rui hesitated for a moment, and said: "There are many abnormal traces at the scene, but I haven't found the logical connection between them, and it's useless to tell you. As for the water stains on their bodies... It's not that they want to wet their clothes, Instead, some shady traces must be washed away.”

"What trace?"

"Blood." Rong Rui whispered, "When I supported Luo Jianxin at the scene, I smelled blood on his body. Later, Lao Sun confirmed my guess."

Xiao Su was startled, and stood up suddenly: "Blood? Whose? Could it be their own?"

"It's unlikely, they don't have any obvious trauma." Rong Rui analyzed, "And in that environment, if you were bleeding, there was no need to wash it so thoroughly, after all, the weather was too cold. Later, I was in the workshop two I observed it in a large sink, and found no blood residue, nor did I smell blood, and the water coming out of the faucet was ordinary tap water."

The factory building of the deserted drone, the blood-stained clothes... Reminiscent of the armchair with the door on it, Xiao Su couldn't help shivering: "Could it be..." The two brothers killed people behind closed doors, pretending to be kidnapped?

Seeing his face change, Rong Rui stretched out his hand to press his forehead and pushed him down: "Don't make up your mind, it's not a horror movie, I checked, both of them are ordinary math teachers, it's impossible for them to become murderers all of a sudden." Crazy. There should be something else hidden about this matter, let’s wait for the results of the on-site inspection to come out.”

Xiao Su thinks about it too, two old men who are almost 60 years old have not seen each other for 30 years, and the New Year's Eve suddenly get together to kill?

It's outrageous...

"Okay, go to sleep." Rong Rui closed the curtains and yawned, "I'm going to sleep too, I'm too sleepy."

Xiao Su closed his eyes and heard the sound of him taking off his clothes. After a while, he breathed evenly and fell asleep.

I felt dark and sweet, and when I opened my eyes, it was already evening, the twilight outside, and the northwest wind whistling.

Rong Rui was on the phone in the bathroom, his voice could be vaguely heard through the closed door, Xiao Su got up, just put on his shoes and socks, when he came out, he said, "Are you awake? Are you hungry?"

Xiao Su shook his head: "The old grandson's phone? What's the situation?"

"Why are you more dedicated than me..." Rong Rui complained, and said, "Luo Jianxin's confession came out, just like Luo Jianhong, these two people seem to have discussed it in advance, even many details are exactly the same."

Xiao Su recalled that he had taught himself popular science. The police would often ask the same question repeatedly. If the suspect answered differently or exactly the same every time, it proved that there was something wrong. Only the general direction was good and the details were slightly different. , is the real truth.

So, the two brothers were indeed lying.

"What about the inspection results?" Xiao Su asked, "Is there blood in the water stains on their bodies?"

"Yes, with blood." Rong Rui sat on the sofa and picked up his mobile phone, and replied, "The blood type of the preliminary test is different from the two of them, so there may be a third person at the scene, but we don't know if it is the murderer or someone else. One victim." After a pause, he raised his head and said, "Perhaps this is the only victim from the beginning to the end, and the Luo brothers are the murderers."

Xiao Su was stunned. Is it really like what he imagined, the old brothers teamed up to kill people and pretended to be kidnapped?

But what about the dead?Where did the dead go?

"What should we do now?" Xiao Su asked, "Should I go to the county bureau to check the situation?"

"The bureau is off work. A team of criminal police and the Jingchuan police went to visit the Luo Brothers' home to collect evidence, and a few technicians were analyzing other physical evidence retrieved from the workshop." Rong Rui lowered his head and continued to pick up his phone, saying, "Let's go It’s useless, let’s talk about it when Lao Sun comes back, he’s in a meeting with the county bureau leader, it’s probably going to be midnight, this case is quite evil...I’ll book him a room.”

"I'll go." Xiao Su said, "You are busy with your work."

"That's fine." Rong Rui was not polite to him, took out a small laptop from his bag and started working, "Just order a standard room, it's not easy to reimburse if it's expensive."

Xiao Su agreed, went down to the lobby to book a room, and when he came back, he saw him sitting at the desk, on which there were several sheets of manuscript paper, all of which were filled with messy forms.

"What is this?" Xiao Su picked up the manuscript paper, glanced at it, and asked, "Sudoku?"

"Well, Sudoku." Rong Rui turned the pen in his hand and filled in a few numbers in the blank space, "OK, we have solved it all."

Xiao Su was puzzled: "How did you get to play Sudoku?"

"Looking for clues." Rong Rui said, "I just checked the Internet traces of Luo Jianhong and Luo Jianxin brothers, and found that they have a common hobby - playing Sudoku. One month before the incident, that is, released After the winter vacation, they also received an invitation code from a foreign Sudoku website, and the person who invited them was called Lay's."

"Lay's?" Xiao Su's heart moved, "Lay's? Potato chips?"

"Well, I suspect that he is the same person as 'Potato Chips'." Rong Rui said, "So I dug out all the Sudoku forms that the Luo family brothers have played this month... Well, it's quite difficult of."

Luo Jianhong and Luo Jianxin are both mathematics teachers. It is not surprising to play Sudoku. Xiao Su went over to take a look and couldn't help but be amazed. The Sudoku game on this website is set as a game from easy to difficult. It was a traditional game at the beginning. The plane Sudoku, gradually evolved into a three-dimensional Sudoku, three-sided, four-sided, six-sided...

Recently, it has become so complicated that even a top student like Xiao Su can't figure out how to solve it.

However, it took him more than 20 minutes to go through the formalities, and Rongrui actually solved everything.

What kind of monster is this kid?

"Don't be afraid of my IQ." Rong Rui saw the surprise on his face and grinned, "Only the first four were solved by me, the latter ones... I don't need to solve them and I know the answers. If you don't believe me, look."

Xiao Su read it carefully, and immediately discovered the pattern of the answer - no matter how complicated Sudoku is, each question has eight blank spaces, and the answer is always the same - two 0s, two 9s, The remaining four numbers are 1, 7, 8 and 6.

No matter how they are arranged and combined, or the order is reversed, the final answers to these questions are these eight numbers.

"What do these eight numbers mean?" Xiao Su was puzzled, "What ciphertext?"

"It shouldn't be that complicated." Rong Rui shook his head. "After all, the Luo Brothers are just ordinary math teachers. They have never learned cipher text. It's too complicated for them to understand...eight digits. Where are eight digits used?"

"Password or password?" Xiao Su said, "Many websites require eight-digit passwords."

"Full digital password, it's rare now." Rong Rui frowned.

Xiao Su thought hard, and murmured: "Eight digits... Is there anything else that needs eight digits to represent... the date?"

Rong Rui's eyes suddenly froze: "Yes, the date, the date is the most common eight-digit number."

"What date will it be?" Xiao Su asked, and then remembered that they hadn't been in contact for more than 30 years, "When did the two of them fall out?"

"The end of 1997."

萧肃在纸上写下1997四个数字,道:“现在还剩下两个0,一个8和一个6了……所以是0806,还是0608?1997年他们家还发生过什么大事?”

"Their father Luo Cai died." Rong Rui touched his chin and said, "He died on August 1997, 8."

"The two sides don't depend, why not two 0s, one 8 and one 4?" Xiao Su puzzled, "Did we guess the wrong direction? Maybe the meaning of these eight numbers is not so simple, it is a certain A mysterious ciphertext..."

Rong Rui thought for a while, but insisted: "No, if the Luo Brothers can solve any complex information through numbers, then there is no need for potato chips to send their location through WeChat, just tell them in cipher text. I think we The idea is correct, Potato Chip spent a month passing these eight numbers repeatedly, just to determine the meaning that the Roche Brothers could get into it."

After a pause, he said firmly, "The date can't be more straightforward, even a 60-year-old elementary school teacher can understand it."

"Okay..." Xiao Su also felt that what he said made sense, "The question is, is it 0608 or 0806? Could the year be wrong? 1998 and 1996 are also possible."

“是。”荣锐在纸上写下不同的排列组合——1996年7月8日和8月7日,以及1998年6月7日和7月6日。

"Now there are six possibilities." Rong Rui drew circles around these dates, "No matter which one it is, this day must be unusual for the Luo brothers. Otherwise, they wouldn't have been separated for so many years Running to an off-the-beaten-path location for this simple tip."

After thinking for a moment, he put down his pen and said, "Don't worry, I'll remind Lao Sun later, and let the criminal police who visit Luo's house pay attention to these dates."

Xiao Su nodded, stretched his waist, and said, "I'm hungry, let's eat! The old grandson should be back after eating. There should be some details on the inspection side. Let's have a good chat, maybe we can find new ones." idea."

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