Zuo Chong looked at the iron fence blocking the elevator door, got up and walked over again, straightened his thumb and index finger to measure the width of the elevator door, and the figure obtained was less than 1 meter.

The width of the two scratches on the floor of the secret passage is about 1.1 meters, and the difference between the two is at least 0.1 meters. How does a transport vehicle with a fixed wheelbase enter and exit from the elevator?

Things that can leave traces on military high-grade cement will definitely not be light in weight. It is impossible for the Japanese to lift it out obliquely, and the elevators may not be able to bear the load-bearing.

He thought for a moment and walked quickly along the scratch. The scratches started from the elevator entrance and extended towards the entrance. Everything seemed normal, but some problems were useless just to see.

The left heavier bends down to use the length of the knuckles as the standard. The depth of the scratches was measured at the three places at the elevator entrance, the middle of the tunnel, and the corner of the road, and the problem was quickly discovered.

From the elevator entrance to the middle of the tunnel, this section of scratches is relatively shallow.

From the middle of the tunnel to the corner, this section of scratches are relatively deep.

It seems that the center of the lane is the starting point of the mysterious transportation tool. It goes to the entrance direction more times and the elevator direction less times, otherwise it will not be able to explain the depth gap.

Zuo Chong looked around thoughtfully. Will such a big thing appear out of thin air? Surely no, he must have ignored something, so he raised his hand and knocked on the wall of the alley.

“Dongdongdong…”

The echoes on the walls on both sides are normal, and there doesn’t seem to be space behind them. It may be that he doesn’t use enough strength, and there are enemies everywhere here. No matter how strong his strength is, it is easy to alarm the other party.

However, after careful observation, he was able to confirm that the ground against the wall was smooth and flat, and there were no traces of transportation passing by, which ruled out the possibility of hidden doors on both sides of the tunnel.

Zuo Chong stood there in a daze, staring at the scratch that seemed to fall from the sky, and then looked up at the top of his head as if he had thought of something.

Aside.

The soldiers of the Anti-Japanese Allied Forces, who were not wearing much, took off their cotton jackets, coats, hats, and even underwear and piled them up at the elevator entrance. You should know that it is now dripping water outside to make ice.

Zhou Mingshan is no exception. Underground Party cadres pay attention to setting an example. Everyone is a comrade-in-arms separated from their lives. There is no distinction between status and low status in their work, only different division of labor.

At this time, he touched a sweater, his eyes full of reluctance, but in the end he put it in the pile of clothes and looked at his partner who was tilting his head.

The other party made him a little confused. He wore a mask since the meeting. Even when he went to seep, he walked out of their sight before taking it off. He covered his face again when he met in the secret passage.

Being so mysterious, this person's identity may be very sensitive and he does not want to expose his true appearance in front of the Anti-Japanese Allied Forces. Zhou Mingshan has a very rich experience in fighting and guessed this possibility.

So who will the other party be?

What identity?

Zhou Mingshan kept guessing, but unfortunately he had no clue and there was too little information available. He only knew that the tiger should be very young and had a high status, so he would not be the one who had left the left.

He smiled. Such senior officials could not come to the enemy's back to perform tasks. Is there any such a kind of official in the Goryean Party? There were many of them in the 16th year of the Republic of China, but now there are very few.

Because all the real ideals and life-blind people in the Fruit Party have died, most of the people left behind are slaves and speculators. You can get promoted by flattery, so why risk coming to the Northeast?

He was thinking, someone walked up to the side and whispered: "Report, the sweater was knitted for you before my elder sister sacrificed her. Let's leave it to me as a thought, it's enough to ignite things."

The big bald man from the Anti-Japanese Allied Forces handed over the sweater that Zhou Mingshan had just put down, with a solemn expression. Although he didn't say much, he explained the special significance behind this dress.

"No need, burn it."

Zhou Mingshan smiled calmly, his tone was extremely firm: "I know her. If she knew that she could contribute to destroying the bacterial weapon base, she would not know how happy she would be.

By the way, you are an expert in explosions. Check the timed device several times. Be sure to make sure that it explodes on time. There is only one chance. If you have arranged it, retreat. It is not advisable to stay here for a long time."

"team leader..."

"Brother Gun, I've discovered it."

Without waiting for the big bald man to persuade him again, Zuo Chong came over to talk to Zhou Mingshan, and then asked if there were any personnel who were good at blasting in a closed space.

"Yes, Lao Hei will."

After hearing his words, Zhou Mingshan showed surprise and patted the confused bald head and introduced: "This guy used to fire a firecracker at the coal mine in Hegang, and his skills were very good.

Later, the Japanese forcibly occupied the mine and killed innocent miners. Lao Hei joined the Anti-Japanese United Army in anger. In the past battles, many Japanese soldiers were killed by dangerous goods."

oh?

Zuo Chong was a little surprised when he heard this. He originally thought that Lao Hei was like Gui Youguang, both a simple-minded and well-developed reckless man, but he never expected to be a technical talent.

Not everyone can do artillery workers in coal mines. The geological level in the mine tunnel is complex and the air contains flammable and explosive gases. If you are not careful during blasting, you will cause a big explosion.

Only experienced veterans are qualified to do this job. Alas, they are all bald, why are their subordinates so powerful? Zuo Chong sighed and turned to look at Lao Hei.

"Are you sure that a small-scale blasting of the secret passage will be carried out without destroying the overall structure, and the laboratory is on it, and we must open a gap to go up."

As he said that, he looked up at the dark gray cement wall above the three of them. If he guessed correctly, there should be a flap on the top of the secret passage for transportation to pass through.

This speculation is not only because there are scratches on the ground, but also because the elevator is not reliable, and it will stop working once the power is out. It is also easy to block the elevator entrance when retreating.

The cunning rabbit has three holes,

What's more, it's Japanese.

The Kwantung Army’s water supply and epidemic prevention troops will never be stupid enough to place their own safety on one passage. From this point of view, the possibility of a secret passage having two entrances is very high.

At the same time, flip boards have another function. Imagine what to do if they attack the elevator and suddenly fall from behind in the middle of the attack.

The enemy who has the advantage of terrain does nothing. Just block both ends, starve everyone for a few days or release poison gas. Today next year will be the death day of those present.

Attackable,

Retreat and leave.

The Japanese's wishful thinking was quite loud, and Zuo Chong sneered. If he didn't notice the scratches, everyone would be unable to guarantee that they would not fall into the trap, and that would be a dilemma.

Zhou Mingshan also realized the seriousness of the problem and couldn't help but feel cold sweat behind him. The third level did not have heavy machine guns or guards, which seemed very relaxed, but in fact it was the most dangerous.

Lao Hei didn't know what the two of them were thinking. After listening to Zuo Chong's question, he did not rush to answer, but picked up the flashlight and carefully observed the top of his head, but found nothing.

The walls are tightly tactile, and there is no sign of the existence of the flap. However, the spy of the Gory Party said it with confidence, and through the previous actions, it can be seen that the other party is not a person who speaks nonsense.

"Planning a ladder."

After a rough look, he asked two Anti-Japanese Allied Forces soldiers to carry him to the top of the secret, searching inch by inch against the cement surface, and rubbing saliva against the wall from time to time.

If there is a flip board in the secret passage, there must be a gap between it and the normal wall. The gap and other locations have different water absorption, which can be distinguished by the liquid drying time.

This is his unique skill he has mastered in a coal mine. In order to avoid squins and permeability accidents, the blast hole must avoid positions with too strong water absorption. The principle used is similar to finding a flap.

And compared with dark and humid mines with poor visibility, the conditions of the secret passages are much better, at least the lighting is sufficient, so he can observe better, so he soon made a discovery.

"dagger."

Lao Hei said something to his comrades under him, then took the dagger given to him by the other party, and drew a rectangular range of more than 1 meter wide and 3 to 4 meters long on the top wall.

After drawing, he jumped gently to the ground and solemnly reported to Zhou Mingshan: "Captain, after the Japanese used the flip board last time, they should have applied a layer of cement on it, and it is difficult to distinguish the appearance.

There is no problem with blasting. Set up dangerous goods along the gaps. After detonation, the shock wave will be transmitted along the weak spots, destroying the control structure of the flip plate and not having much impact on the secret passages.

However, the exhaust here is not smooth, and the smoke generated by the explosion may be very large. According to my experience, it will take at least twenty minutes for the smoke to become sluggish, which is inevitable.

Also, we didn’t bring any tools, so how do we put dangerous goods on the top? Unless we hold them with our hands, let me leave this task. The task is of great importance and must be completed."

smoke,

Support.

It's really two big troubles.

Zhou Mingshan understood the other party's meaning. Smoke could block the enemy's vision. It was a good thing, but when it appeared here, it would make them lose the advantage of sneak attacks and preemptive attacks.

After all, the smoke was together, and the operation personnel could not even see the enemy. How could they shoot at the other party? When the smoke dissipated, the Japanese had already reacted and were ready to fight.

As for Lao Hei's request, he would not approve it. It was his captain who wanted to sacrifice. The rules of the Anti-Japanese Allied Forces should go first when encountering dangers, rather than letting the soldiers die.

Zhou Mingshan thought for a moment and took the initiative to ask Zuo Chong: "Mr. Tiger, the Secret Service is an elite in the National Government. Is there a way to solve these two problems? We don't have much time left."

"have."

Zuo Chong took a military kettle from the waist of a warrior of the Anti-Japanese United Army and shook it hard: "Put multiple kettles and dangerous goods at a distance, and the water vapor will cause the smoke to settle after the explosion.

Brother Hei doesn’t have to worry. With the 38 rifles and these things from the previous Japanese soldiers, we can make our own support, and this thing is not difficult to make."

Speaking of this, he pointed to the iron fence at the entrance of the elevator. There were more than a dozen iron bars on it, each of which was at least one meter. After connecting it with cloth strips, the length was definitely more than 2 meters.

After the support is made, one end is tied to dangerous goods, and the other end is supported on the ground. It can ignite the fuse and detonate. Why use a living person to support it?

Zhou Mingshan made a quick decision and immediately issued a specific order: "Lao Hei, prepare for dangerous goods to be blasted. Others removed the iron fence and whispered, and completed it within five minutes."

The soldiers of the Anti-Japanese Allied Forces greeted a silent military salute and turned to the elevator. With so many young and strong personnel and tools, they could even pull the iron bars down.

Outside the secret passage,

The wind and snow have not stopped.

In a wasteland north of the shady river, several Japanese military trucks turned on their headlights. The strong wind blew and made a whimper. The snowflakes wrapped in it were clearly visible under the light.

More than a dozen spies from ordinary high-level divisions of the secret service department squatted on the ground shoulder to shoulder, slowly moving forward, slowly pushing away the snow in front of them from time to time, as if looking for something.

Gao Bin looked at his subordinates' actions and tightened the collar of his coat. They were investigating the scene of the attack on the anti-Japanese anti-Japanese elements the night before yesterday. This was not a good job.

No one knows whether the other party will kill and shoot back. Even the Japanese asked the spies here, maybe just to lure the enemy into the bait. Gao Bin is very clear about this.

Be a dog,

That's it.

He stood in the darkness vigilantly, carefully observing the surrounding situation, while recalling the passing of the eunuch, a hint of suspicion in his heart, the attack was a bit strange.

Judging from the traces and physical evidence left behind, the person who launched the attack was by no means a professional soldier. He had no rules when attacking and retreating, and he was about to collapse when facing a counterattack.
To be continued...