About half an hour later, Zhao Jie, who had been walking around, stopped in front of a tea stall. "Have a bowl!" Zhao Jie sat on the stool and waved casually. "Okay, master!" The owner brought a large bowl of tea very neatly. In the streets and alleys of Tianjin, tea stalls like this one selling large bowls of tea are common. Although the tea leaves in the big bowl of tea are not as expensive as those in the teahouse, and the taste is so mellow, it has a free and heroic momentum. Two cents a bowl, goo goo and drink it, that's called a hearty. The cautious Zhao Jie still looked around while drinking tea, and after feeling that there was nothing wrong, he put down the tea bowl, slowly stood up, and walked towards the wall in front of which countless newspaper banners were posted. This wall is a wall of information. There are countless small advertisements posted on it, including recruitment, rental, and search notices, which can be described as varied. After Zhao Jie walked over, he naturally took out a small poster from his pocket. While sticking it on, he chanted vigorously: "My medicine is a panacea, everyone comes to buy it, take my medicine, and all diseases will not invade." After sticking it, he shook his head and left. Jiang Qiang, who was facing away from Zhao Jie at the moment, was haggling with a vendor selling feather dusters, and he didn't even look at the other party at all. Shunzi turned around sharply and left ahead of Zhao Jie.

The three of them are doing their own thing. After Zhao Jie disappeared from the street corner, Jiang Qiang came unhurriedly to the tea stall where he had sat before, and also asked for a large bowl of tea. After taking two sips, Jiang Qiang inadvertently pointed to the distance and said, "Boss, are you familiar with the person who just left?" "You ask the master? Uncooked, come once in a while. The tea boss said with a smile. I heard him just put up an advertisement shouting to sell medicine, can his medicine take care of things? Jiang Qiang asked with interest. Charge? What a bullshit steward! The tea boss pursed his lips and said to Nunu on the other side of the news wall: "Can you manage things by putting up posters to sell medicine?" It also cures all diseases, come on, why don't I believe it so much. "This master, let me remind you, if there is anyone in your family who wants to see a doctor, it is best to go to a serious medical center, don't believe that among these rivers and lakes, one can fool one more than the other!" "Okay, thank you, I'll go and look at his poster." Jiang Qiang drank the tea and said, "Look, he will stick one every time he comes." The boss said casually.

One at a time? Jiang Qiang nodded, got up and walked over. For places like teahouses and tea stalls, he still cares a lot. Because in this era, in addition to drinking tea and chatting, the tea stall teahouse also has a very important role, that is, the intelligence concentration place. Some teahouses specialize in this kind of business, although the type of information is different, but the nature is the same. For example, the vendors who collect old goods in small quantities, they stop and meet in a fixed teahouse every day, drinking tea and exchanging information at the same time, they call this place "Ji'er Shang". There are also those masons, carpenters, and shacklers who gather in the fixed teahouse every morning, drinking tea, waiting for the foreman to come and call someone, and they call it "Kouershang". Therefore, the news resource of the teahouse cannot be ignored. In front of the message wall. Jiang Qiang didn't stand directly in front of the poster, but glanced at the side. Because he can't be sure of Zhao Jie's purpose for posting this poster for the time being. If this is a contact code, then someone may be staring at this poster.

If you say that you are too obvious, you may be noticed. In action, no detail can be overlooked. The content of this poster is actually very simple, it is the head of a man in military uniform, but it has been artistically processed, giving people a very festive feeling, especially the mustache, which looks very joyful. There is a line of words written below: "Miracle medicine Ren Dan, curing all diseases" is a normal propaganda poster, I can't see what is wrong! Jiang Qiang raised his eyebrows, looked at it twice, imprinted every detail in his mind, and didn't notice anything abnormal. Could it be that I was wrong? Jiang Qiang quickly returned to the tea stall and asked for a plate of melon seeds. It didn't take long for Junzi to come over in a hurry, and after sitting down, he whispered, "Brother Jiang, that guy went back." "What about the rest?" Jiang Qiang asked lightly. "They all stayed at home and didn't come out." Junko replied. "Do you think there's anything wrong with that poster?" Jiang Qiang snorted at the wall. Shunzi, who glanced at it by the way, thought about it, shook her head and said, "Brother Jiang, I didn't understand, what kind of mystery did you say about that poster." Or is it a kind of contact signal just by posting it? "Perhaps!"

Jiang Qiang still felt that something was wrong, and after thinking about it, he said, "Junzi, you stay here and continue to stare at it to see if anyone has the idea of coming over to make a poster." "Yes!" After leaving, Jiang Qiang suddenly thought of what the tea stall owner had just said. There is indeed a problem, since that guy comes to put one every time, why is there only one identical poster on that advertising wall? Could it be that he sticks it in the same place every time? Is there a mystery on the poster pattern? Maybe just tear open that poster and you'll know what's wrong! Although he had a strong impulse in his heart, Jiang Qiang had to suppress this thought first. Uncovering the poster is a trivial matter, but if someone finds out when you uncover it, the gain will outweigh the loss. It's better to be cautious! Anyway, there is Junzi guarding here, even if anyone comes, I believe it will not escape his eyes. "Wait patiently!"

Chunsheng Tea House. It has been taken over by the Criminal Investigation Department, which monitors the small courtyard in the alley 24 hours a day. As long as there is any wind and grass in it, it will be detected in time, and there will be absolutely no mistakes. In order to react in time, Chu Mufeng chose to live here directly. The people in the opposite courtyard have not moved since they came back, there is a dead silence inside, and there is not even the slightest light, if it is not for the fact that there are people living in it, they would think that it is an abandoned house. "Brother Jiang, there's movement over there!" In the early hours of the morning, Shunzi, whose eyes were bloodshot, rushed back to the teahouse, and as soon as he saw Jiang Qiang, he said excitedly: "You are really like a god, and the problem is really on the poster." "Tell me about it!" Chu Mufeng's expression was excited, and he swept away the previous dullness.

"Half an hour ago, a sneaky, suspicious-looking guy came over, and then he went to the advertising wall, took out a poster, pasted it directly, and then immediately left in a hurry." Junko said fifteen-ten. "Did you notice that the two posters were different?" Jiang Qiang asked solemnly. "Yes, yes, yes, you're right, it's different!" Raising his hand and gesturing to his chest, Junko continued: "The previous poster officer had nothing on his chest, and the poster that was pasted later had an extra round medal on his chest. "Medal! With a slap of his palm, Jiang Qiang deduced: "The problem is really in the poster pattern." "If I'm not mistaken, what is posted here is a request to meet, and the round medal that is posted later gives a signal that we can meet." "Usually there are a lot of people coming and going, and I believe that no one will pay special attention to this poster, and they use it as a signal, which is really not easy to notice." "If I'm not mistaken, the people in the courtyard will go to see it early in the morning tomorrow, and if they see this poster with more medals, they will pass on the information tomorrow." Jiang Qiang said in a deep voice. "Well, nine times out of ten!" Junko said thoughtfully. "Brother Jiang, what if the poster that was put up on it fell off? Or was it torn apart? Isn't that just useless work? In that case, how can they be sure of the connection? Enron questioned slightly. Enron, the likelihood of the situation you are talking about is very small! ”

Jiang Qiang, who got another clue, was in a good mood and patiently explained: "First of all, you have to know that those poster advertisements on the news wall will only be covered, but no one will take the initiative to clean them up. "The second is the weather, do you think that on a day like today, when there is no wind or rain, the posters put up will fall down casually?" "The third is the time, that person went out to put up the poster in the evening, at this point in time, basically no one came to put up the poster again, even if it was pasted, it would not completely overlap with him, as long as it was one night, they could confirm the news!" "Fourth and most important, there should be a fixed point in time for them to be in contact, you don't think that guy in the yard just went out casually, right?" "So even if something goes wrong, they can remedy it in time, and if they don't contact them in time after the time has passed, they will adopt other corresponding strategies." Speaking of this, Jiang Qiang saw An Ran's thoughtful look, smiled slightly and continued to add: "Besides, do you think this kind of poster is all over the street?" "I dare to say that they are the only ones in the whole city of Tianjin who use this kind of poster to convey the message, and the printing house will not have this style, with such a premise, do you think the poster will have a problem?" "Brother Jiang, I understand!" An Ran nodded and said. "It's good to understand!" Jiang Qiang looked sideways at Junzi: "That guy, you arranged for someone to follow you, right?" "It's arranged, and as soon as I find out where the other party has landed, I will come back and report." Junko nodded. "Okay, then let's wait for the news!" Jiang Qiang was completely sleepy.

In less than half an hour, the team member in charge of tracking came back to report that the opponent's location had been determined. The guy went around in a big circle outside, and then went back to a shop called Wenyuan Zhai, which did pen, ink, paper, and inkstone business. "In order to avoid startling the snakes, we didn't stay there for long, and we didn't ask anyone nearby." "Well, you're doing a great job!" Jiang Qiang secretly bowed his head, it was absolutely wise to do this, lest someone report the news and cause another variable. "Alright, let the brethren recharge their batteries, and wait for tomorrow! As long as they meet tomorrow, they will be arrested on the spot. "After all, in the face of professional spies, vigilance must be high. It may not be a wise move to choose the night operation, in order to avoid uncertain accidents, so Jiang Qiang said. "Yes, Captain!" All were scrappy and emotional.

Early in the morning, before the night had completely receded, Zhao Jie came out of the courtyard when the vendors who came out of the stall had just started to move the tables and benches. Looking at the deserted streets, he gathered his collar and trotted all the way to the news wall. When he saw the poster with the medal on his chest, a relieved smile appeared on his face, and he turned around and walked back. He couldn't even notice that in the dark shops on both sides of the street, there were several pairs of eyes watching his every move. Eight o'clock in the morning. At the same point in time as yesterday, six people walked out of the courtyard in turn, and Zhao Jie, who was in charge of staying behind, also came out. After seeing him appear, Jiang Qiang, who had been guarding the window for a long time, put down the binoculars and squinted slightly, if he guessed correctly, he should be going to pass on the information. After Zhao Jie also left, Jiang Qiang immediately gave an order.

"Junzi, you go and follow him in person to see if he meets with Wen Yuanzhai's people!" "Qin Siyu, you immediately go and collect the relevant information of Wen Yuanzhai." "Enron, you let the brothers keep an eye on the whereabouts of the other five!" All three of them took the order and left. As for Jiang Qiang, he took Zhang Feng and a few people to the door of the courtyard, since it has been determined that there is no one inside, all that needs to be done is one word: search! "If you find that someone is coming, take it directly, you don't have to be polite!" Jiang Qiang commanded in a deep voice. "Yes, Captain!" Zhang Feng said respectfully. Then Jiang Qiang directly climbed over the courtyard wall, entered the courtyard, and went straight to the main house. He must now search as soon as possible to see if there is any valuable intelligence evidence here. Gently pushing open the door and walking into the house, Jiang Qiang couldn't help but smile. He found that he seemed to be thinking too much, and he didn't need to search for evidence at all, because the room was full of boxes and materials that were neatly arranged. Each box is divided into categories: economy, people's livelihood, prices, transportation, geography, security, water conservancy, electricity, cultural relics...... It's divided into categories, quite complete, just like a small library. There are also several maps hanging on the walls, showing the military deployment of Tianjin. There are also the whole of Beiping City, as well as various districts, and no matter which map it is, all of them are clearly marked with street names and place names. Although there is no military defense map here, the map of Tianjin City and Beiping City can be so clearly marked that in the event of a war, it is a certain opportunity. "Damn Japanese spies, have you started planning Tianjin City now?" Gritting his teeth, a chill appeared in Jiang Qiang's heart. If it was all speculation before, then now it is 100% certain that these guys are the intelligence collection team of the Japanese invaders, and what they did was to prepare for the invasion of Tianjin, Tongzhou, Wanping, and Beiping.

"There's minimal military intelligence here, and it seems that this aspect shouldn't be their focus." Jiang Qiang picked up a booklet of water conservancy in the Huayu District, and found that this material clearly marked the distribution of wells in Tianjin City, Tongzhou City, and the Huayu District of Beiping City, as well as the arrangement of underground water trunk ditches and branch ditches. If this is to cause sabotage, who can prevent it? One to do one accurately. And obviously they won't just collect one district, they will certainly be collecting information from other districts. The water conservancy alone is so detailed, and what about other aspects, it is really scary! Shaking his head, Jiang Qiang temporarily waved away the chaotic thoughts in his mind, and continued to search in the house, he wanted to see if there was a radio station here? If you can find a radio station here, and it is better to find a codebook, then the credit is not ordinary, but a great achievement. And his intuition told Jiang Qiang that there should be a radio station here. How can a spy group that can be formed independently say that there is no radio station? Otherwise, what if you need to pass on information immediately in case of emergency? If so, where would they hide? With this strong sense of purpose, Jiang Qiang stood in the middle of the house, his eyes scanning around.

He doesn't like the feeling of a blind man touching an elephant, there is something, there is no is nothing, it is better to calm down and analyze it carefully if he goes to find it blindly. If it were me, where would you hide the most important things? In a chest full of floors? Under the wooden bed? "Wait, is it here?" Jiang Qiang's eyes suddenly darkened, and he walked quickly to a bookshelf against the wall in the room. He hadn't paid much attention to it just now, but when he looked at it a little more, he saw that the bookshelf seemed to be a little out of place in the room, and the bricks on the floor seemed to be different from the rest of the room. Although there are some books on the shelves, the most conspicuous is the bronze vase. Jiang Qiang stretched out his hand and grabbed the vase, couldn't lift it, twisted it left and right, and then only heard a clicking sound, and the bookshelf was moved to both sides, revealing the secret room inside. There was only a table in the cramped chamber with a radio station next to it, and a codebook next to it, but there was nothing else. The moment he saw this, Chu Mufeng's face was overjoyed, he knew that he had guessed correctly! This time, not only was I able to catch a big fish, but I also dug up a treasure by the way. As long as you have this codebook, the credit for this time is monstrous.

I remember when I was in the police academy, the teacher once said that the codebook is the soul of the radio, but until now, we know very little about the codebook of the Japanese invaders, and any one of the Japanese codebooks is a great achievement. Not to mention the fact that a radio station has been seized here, and there is a lot of information! Jiang Qiang directly picked up the radio station and code book, and then came to the door and asked Zhang Feng to open the door. The moment the door was opened, seeing the radio station Jiang Qiang was carrying, Zhang Feng's eyes were full of surprise, and he exclaimed: "Brother Jiang, there is really a radio station inside!" "That's right!" A cold light flashed in Jiang Qiang's eyes: "Now it is certain that this is a spy team of Japanese invaders, they not only collected all kinds of intelligence materials in all aspects, but also equipped with radio equipment. "So, there's no need to wait! I will go to Wenyuan Zhai now, and you will immediately notify you to let the brothers close the net. "Yes, Captain!" Zhang Feng replied with his palms in a hurry. In front of a newspaper in the Flower Language District. A man in a sweatshirt with slightly curly hair was squatting in front of a rickshaw, seemingly waiting for work. He looked very honest, with a sweat towel around his neck, which he picked up from time to time to wipe the sweat from his forehead. If you look closely, you will see that his skin is slightly yellow, and he does not seem to be as dark and rough as the rickshaw driver.

"It's not even noon on this dog's day, it's so hot! It seems that I will have to change my identity in the future, what a crime! Curly muttered. At this moment, two people pulling rickshaws approached, they shook their heads and looked at the curly hair, and said in a vicious voice. "Hey, you kid crossed the line, this is our brother's stronghold, hurry up and get away!" "Bastard, who are you letting go?" A fierce light flashed under Curly's eyes, and he shouted angrily. "What's the matter? Not convinced, right? Want to practice? "You ......" was called out by the two yellow-toothed, rough guys in front of him, Curly Hair was a little indignant, but thinking of his identity and mission, he had to swallow this evil breath, leaned over and lowered his head to pull the rickshaw. Okay, count you ruthless, I'll go! "Bang! However, just as he lowered his head, there was a whirring wind behind his head. Before he had time to dodge, he was knocked to the ground by a blow, and then he was not given any chance to resist at all, and the two men quickly pounced on him to control him. Twist your arms, remove your chin, put your handcuffs on, and do it all in one go! "Your business is revealed, come with us obediently!"

An old street to the east. Although the street is old, the surrounding area is very densely populated and the living facilities are quite complete. There are barber shops, bathhouses, tailor shops and post offices, humble vegetable farms filled with the smell of vegetable leaves and fish, large and small restaurants, and a pawnshop of various sizes. A noodle restaurant specializing in jajanjangmyeon. Two shirtless and shirtless men were eating noodles, and the sound of squeezing was one after another, and from time to time they picked up a white jade-like garlic clove and chewed two bites. Well, it smells so good! "Come to you, uncle, please~" With the greeting of the guy, a handsome man walked in and waved for a bowl of noodles. It's just that before he could sit down on his ass, the two men who were still eating noodles just now suddenly stood up. The one on the left stretched out his hand and grabbed his neck from behind, and it was estimated that with a little more force, he could break this guy's neck. The one on the right clasped his hands tightly and took out a copper handcuff from his waist. There was a double click, and it was cuffed to death. didn't give the other party a chance to talk more, the hand in charge of the neck shrank, simply and rudely removed his chin, and then walked out alone. didn't give the other party a chance to talk more, the person in charge shrank his hand that was stuck in his neck, simply and rudely removed his chin, and then walked out alone. This is clearly an official business, you can only watch it, you can't say it!

A bustling street in a Chinese-speaking district. A man with short hair, a slightly chubby body, and a black mole at the corner of his mouth stopped in an antique shop, pointed to the teapot in the cupboard and asked, "Boss, how did you sell this purple clay pot?" "This gentleman, at first glance you are a knowledgeable person. This purple clay pot is also a good thing, flowing out of the palace, if you like it, the price is easy to say. The antique shop owner replied with a smile. Is it? Take it out and take a look! "The man with the black mole seemed to be quite moved, and when he was just about to bargain, he suddenly felt that something hard was pressing against his waist, and an indifferent voice came from his ears at the same time." Don't move, I'll kill you again! As soon as the word came out of his mouth, there was a sharp pain in the arm of the black mole man, which had been twisted backwards, followed by handcuffs and chin removal. Come with us honestly! ”

At the same time, in front of a bank. This bank is called Fuyou, it is a large-scale bank in the city of Beiping, and it has been a money bank since the Qing Dynasty, and it can be regarded as having experienced ups and downs, and it is not easy to stay. Due to the good geographical location, there are many people who usually save money here, which can be described as a busy business. On the road opposite the bank, the man in a suit and leather shoes who came out of the courtyard was sitting on a bench shining shoes. Although he had a newspaper in his hand, his eyes were staring in the direction of the bank. "Sister-in-law, do you often shine shoes here?" The man in the suit put away the newspaper and asked casually. "yes, I've been shining shoes here!" The shoe-shiner was a middle-aged woman in her forties, her hair tied up, dressed plainly, and she was skillfully polishing and wiping her leather shoes. "You should make a lot more money shining shoes here than anywhere else, after all, it's next to the bank, and the people who come and go are decent, right?" The man in the suit is very good at chatting, and he can catch the conversation. "Well, you're ......!" The woman grinned. Just as the sister-in-law who was shining shoes was halfway through her words, she saw that the man in the suit who was chatting with her was directly overturned to the ground, and the whole person fell to the cold ground, looking quite painful. Handcuffed! Remove your jaw! Fixed process, this is what Jiang Qiang has specially explained! "Get up and come with us!" The indignant man in the suit was quickly taken away, leaving behind the shoe-shine sister-in-law with a stunned face.