cicada

Mountain City, Shaci District.

Zuo Chong wrapped his head in a handkerchief and wore the coarse cotton padded clothes that local villagers often wear. He walked around the city a few times and stopped, carrying a bamboo basket on his back and knocked on the back door of a house.

It was already December of 1939, which coincided with the winter solstice, and many people chose to visit relatives and friends on this day, so his attire was not conspicuous at all, and he did not attract anyone's attention.

Following the knock on the door, Song Minghao opened the door from the inside, stood at the door and exchanged a few words, then invited Zuo Zhong into the courtyard, glanced around and closed the courtyard door casually.

After entering the door, Zuo Zhong shook his shoulders and unloaded the heavy bamboo basket from his back┴ and handed it to Song Minghao. He raised his chin in one direction and asked in a deep voice.

"Old Song, how is it? Did you find any problems?"

This is the monitoring point of the second office. It is only one road away from the suspicious phone that was found when checking the number. The location is very close and the observation field of view is very good.

After leaving the telephone office last time, Gucci, who did not give up, still applied for surveillance operations. After all, this is the only clue so far. It would be a pity not to investigate.

"Some discoveries have been made."

Song Minghao took the basket and nodded, and while walking with Zuo Zhong into the house, he introduced the situation of the suspicious phone call.

"According to the installation bill, the owner of the phone is a staff member of a German foreign company, but according to the investigation, there is no such person in the foreign company.

The house was just rented two and a half months ago. We contacted the owner from the side, and the other party said that the renter was a middle-aged man with complete documents.

Director Gu asked someone to make an external transfer, and found that the names and addresses in the certificates were all fake, and the photos were deliberately blurred, making it difficult to identify.

I also went to check the registration at the police station. At that time, this person provided an insurance policy issued by a foreign company, and the police officer in charge of the review approved it without seeing any problems.

This bastard is very cunning, leaving almost no valuable clues. He must be a professional agent with logistical support.

Those police officers were exposed to documents and declarations every day, and they were able to successfully deceive them. The other party must not be using low-end goods sold on the black market. "

As he spoke, Song Minghao pushed open the door, only to see a few surveillance personnel standing on the low ladder, monitoring the outside through a few small holes in the high wall.

Gu Qi was also among them, and when he saw that the deputy director was coming, he quickly slid down the ladder┴ and called a small secret agent to fill his position.

"Second seat."

Coming to Zuo Zhong's side, Gu Qi saluted and said hello, exchanged a few words with Song Minghao in a low voice, and then continued to introduce according to the other party's words.

"It is a good thing that the renter told the landlord to install a telephone when they signed the rental contract. The landlord offered some help and everything went well during the installation process.

In addition, the neighbors in the surrounding area said that they rarely saw renters in Pingshi, but in this world, it is better to have less than one thing, so no one reported it to the police station.

I also sent a brother to check the electricity consumption records. The rented house had almost no electricity consumption in the past two and a half months, which confirmed the testimony of the neighbors from the side, but there was one thing that was very strange.

When checking the number information before, it was clear that someone on the other side answered the phone. This is contrary to the results of the investigation. I think the other party may have tampered with the phone line. "

There is no one in the room, but someone answers the phone?
Zuo Zhong frowned, it was indeed a bit weird, but this was a spy novel, not a supernatural novel, and it was likely that the other party connected the line privately, just as Gu Qi guessed.

In this era, there is no pulse recognition technology, and there is a separate telephone line between each telephone and the telephone exchange. As long as the line is connected to any position in this telephone line, the purpose of making a call can be realized.

The problem is that private calls cannot be answered, unless the other party changes the line by himself, cuts off the phone line that originally led to the rental house, and leads it to other places.

After thinking about it, Zuo Zhong asked Gu Qi if he had sent someone to check the line, as long as he found a private line, he could still find the target.

"Six people were sent, all wearing telephone office uniforms."

Gu Qi gave an affirmative answer, then looked at his watch and replied: "Should be back soon, if the person is found, the operation may need the help of Youguang's action team, this group of people is not easy to deal with.

Judging from the investigation, the other party behaved very professionally, and the operatives of the Second Division were better at countering espionage, so they might not be able to catch people alive. "

Just as he was talking, the little spy who went to check the line came back disguised as a toll collector and reported a piece of bad news.

"Senior seat, chief seat, we checked carefully and found no private connection line."

"What, no?"

Gu Qi and Song Minghao exclaimed, how could this be possible, could it be that it was really weird, or they got the wrong number that day, and their heads were a little dazed.

Zuo Zhong was not surprised, since he had already guessed that he was a professional agent, how could the opponent leave such a big opening.

Moreover, if you want to receive calls from other places, there is not only a private connection line.

A bright light flashed in his eyes, and he brought 3 teacups and two chopsticks from the kitchen, walked to the table and beckoned Gu Qi and Song Minghao to come over.

When the two came to the side, Zuo Zhong placed the teacup on the table in a triangle ┴ shape, and connected the three with two chopsticks, forming a "ㄥ" shape.

After finishing, he pointed to the top teacup and two chopsticks, and asked a simple question.

"Old Gu, Old Song, look, let's take this cup as a telephone exchange, this chopstick as a regular telephone line, and the other as a private line. Do you understand me when I say that?"

"understand!"

Gu Qi and Song Minghao didn't understand the deputy director's intentions, but they still gave an affirmative answer. It was just a simple demonstration sand table, which is very common in handling cases.

Seeing their doubts, Zuo Zhong didn't explain, then raised his finger to the second and third cups, and spoke slowly.

"Then these two cups are two independent phones, one is a suspicious phone found by the second place, indicated by A, and the other is the phone actually used by the other party, indicated by B.

We guessed before that B connected to A's line privately, and A and B are on the same line. Now that it is found out that this is not the case, there are only two possibilities.

Either someone at the top of the telephone exchange has someone on the other side who made a fake on the installation slip. This is unlikely, because it is easier to be exposed, and it is easier for us to follow the clues.

Moreover, there are too many people in the telephone office and most of them are professionals. Even if there is an inside line, it is difficult to manipulate, so there is only one possibility-there is a problem with the line itself! "

Having said that, he held down the chopsticks representing the private connection line with his fingers, glanced at Gu Qi and Song Minghao, and gently pushed them up.

The "ㄥ" shape instantly changed into a "∧" shape, and the top is the telephone exchange, and both phones A and B are connected to it by a separate telephone line.

Before it was over, he stretched out two more fingers, placed them on the two chopsticks, crossed his hands suddenly, and changed the position of the chopsticks left and right.

Hearing this, Gu Qi suddenly realized, and suddenly patted his leg, his eyes lit up.

"Understood, the real location where the other party answers the phone is at B's address. The rental house and B's phone inside are just a cover-up, so that we can use one hand to cover the other."

Song Minghao also figured out what was going on, and also greeted the other party with words, and made a suggestion.

"MD, these bastards are really cunning, and when they are caught, I must let them taste the many skills of our military command.

By the way, co-chairman, since the line has been replaced, the installer is the biggest suspect. If you find this person, you will also find B's phone. "

Hearing the two scolding their opponents, Zuo Zhong took a deep look at Gu Qi and Song Minghao, crossed his arms and looked ahead, and said something with a half-smile.

"Hehe, that's right. Money can turn ghosts around. As long as there is money to make, there will always be people who are willing to take risks. Old Gu, what should I do next, don't I need to teach you again?"

Gu Qi shook his head, the deputy director had already talked about this point, if they didn't know what to do, wouldn't they even be inferior to the Central Committee.

He immediately puffed up his chest, and raised his hand as a military salute: "No, there is information about the installer on the telephone installation sheet. After you find the person, you can find the location of the second phone."

"Well, let's go."

Zuo Zhong waved his hands and watched the two leave, he sighed in his heart, everyone has the right to choose their own destiny, but some paths are life paths, and some paths are death paths.

Han Liang, oh Han Liang, as an old friend, I've done everything I can to help, the rest depends on your own luck, I hope you and I will have a chance to meet again.

One squad has already left, if the other party leaves again, except for the subordinates of the military commander, he will really be alone.

a few hours later.

Gu Qixing ran back in a hurry, and reported a piece of good news with a smile: "Report to the deputy, according to your instructions, we successfully found the installer and arrested him on the spot.

This kid couldn't help being frightened, he pissed his pants as soon as he was pinned to the ground, and all of them were recruited. Someone paid a lot of money to bribe him, and asked him to secretly switch the two telephone lines of A and B.

But when Line A was connected to the foot of Gele Mountain, the other party let him go first, so you may need to coordinate with the garrison to send troops to search the mountain along the telephone line. "

Gele Mountain.

Hearing these three words, Zuo Zhong, who was resting on the sofa with his eyes closed, suddenly got up, strode out, and gave serious orders at the same time.

"Withdraw all the personnel, I will contact the garrison headquarters, no one is allowed to approach Gele Mountain without my order.

In addition, everyone supervises each other and strictly enforces the confidentiality procedures. You and Lao Song will accompany me for a trip, and we must lead by example. "

"Yes! Second seat."

Gu Qi and Song Minghao couldn't help but be moved by the deputy director's high morals, admiringly followed quickly, and the three of them got in the car and drove away.

At the same time, in the other corner of the city, in the mysterious place, Xing Hanliang and a group of people squatted on the ground, skillfully assembling radio stations and weapons.

Outside the window, the cold wind blew and whistled sharply, and the rickety telephone wire extended through the woods into the room, and one person kept nodding while holding the phone.

"Yes... I will leave for my hometown in three days..."