"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." Wang Gezhi said 1510.

"Did you notice that the two posters were different?" Chu Mufeng asked solemnly.

"Yes, yes, yes, you're right, it's different!"

Raising his hand and gesturing on his chest, Wang Gezhi continued: "The previous poster had nothing on the officer's chest, and the poster that was pasted later had a round medal on his chest. ”

Medal!

Clapping his palms, Chu Mufeng 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 is 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." Chu Mufeng said in a deep voice.

"Well, nine times out of ten!" Wang Gezhi said thoughtfully.

"Captain, what if the poster that was put up there drops? Or was it torn apart? Isn't that just useless work? In that case, how can they be sure of the connection? Pei Dongchang questioned slightly.

"Dongchang, the possibility of the situation you said is very small!"

Chu Mufeng, who got another clue, was in a good mood and patiently explained: "First of all, you have to know that those posters and 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 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, Chu Mufeng saw Pei Dongchang's thoughtful expression, 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 entire Beiping City 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 there will be a problem with the poster?"

"Captain, I see!" Pei Dongchang nodded and said.

"It's good to understand!"

Chu Mufeng looked sideways at Wang Gezhi: "That guy, did you arrange for someone to follow you?" ”

"It's arranged, as soon as I find out where the other party has landed, I will come back and report." Wang Gezhi nodded.

"Okay, then let's wait for the news!" Chu Mufeng 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!"

Chu Mufeng 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, it is a professional spy, and the vigilance must be very high. It may not be a wise move to choose the night operation, in order to avoid uncertain accidents, so Chu Mufeng said.

"Yes, Captain!"

All were scrappy and emotional.

……

Nothing was said all night.

Early in the morning, before the night had completely receded, Zhao Jiehui came out of the courtyard when the vendors 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 Jiehui, who was in charge of staying behind, also came out.

After seeing him appear, Chu Mufeng, who had been guarding the window for a long time, put down his binoculars and squinted slightly, if he guessed correctly, he should be going to pass on the information.

After Zhao Jiehui also left, Chu Mufeng immediately issued an order.

"Wang Gezhi, you go and follow him in person to see if he meets with Wen Yuanzhai's people!"

"Song Dabao, you immediately go and collect the relevant information of Wenyuan Zhai."

"Pei Dongchang, you let the brothers keep an eye on the whereabouts of the other five!"

"Yes!"

All three of them took the order and left.

As for Chu Mufeng, he took Huang Shuo 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!" Chu Mufeng commanded in a deep voice.

"Yes, Captain!" Huang Shuo said respectfully.

Then Chu Mufeng 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 room, Chu Mufeng 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 a number of maps hanging on the wall, including the whole of Beiping City and various districts, and no matter which map it is, all of them are clearly marked with the names of the streets and places.

Although there is no military defense map here, the map of Beiping City can be marked so clearly that in the event of a war, this is a certain opportunity.

"Damn the Japanese spy, have you started planning Beiping City now?"

Gritting his teeth, a chill appeared in Chu Mufeng'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 the preparation work before the invasion of Beiping.

"There's minimal military intelligence here, and it seems that this aspect shouldn't be their focus."

Chu Mufeng picked up a booklet of water conservancy in Huayu District, and found that on this material, the distribution of wells in Huayu District of Beiping City was clearly marked, as well as the arrangement of underground water main 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, Chu Mufeng 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 Chu Mufeng 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, Chu Mufeng stood in the middle of the house, his gaze 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 you were to be yourself, where would you hide the most important things?

In a chest full of floors?

In a windowside cabinet?

Under the wooden bed?

"Wait, is it here?"

Chu Mufeng'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 out of place in the room, and the bricks on the floor seemed to be different from the rest of the room.

There are also some books on the shelves, but the most conspicuous is the bronze vase.

Chu Mufeng stretched out his hand to grab the vase, couldn't lift it, twisted it from side to side, and then only heard a clicking sound, and the bookshelves were 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.

Not to mention the fact that a radio station has been seized here, and there is a lot of information!

Chu Mufeng directly picked up the radio station and code book, and then came to the door and asked Huang Shuo to open the door.

The moment the door was pushed open, seeing the radio station that Chu Mufeng was carrying, Huang Shuo's eyes were full of surprise, and he exclaimed, "Captain, there is really a radio station inside!" ”

"That's right!"

A cold light flashed in Chu Mufeng'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!" Huang Shuo replied with his hands in a hurry.

……