The two of them looked at the rotating exhaust fan at this time. The exhaust fan was one person tall enough to accommodate people to climb over. The two of them worked together to remove the barbed wire above.

The fan is still spinning, and it is impossible to enter without stopping.

Long Er found a spear, pointed it directly at the center of the fan, and pricked it up. The fan blade and the spear were combined into one. Long Er grabbed the spear and stopped the fan for half a second.

In just half a second, Bai Yilong immediately used his shield to block a corner of the fan blade.

Two people obviously can only go down one.

Bai Yilong and Long Er looked at each other, and Long Er said, "I'll go!"

Bai Yilong twisted his head: "My plan, don't forget what you should do?"

It was agreed before that Long Er was responsible for recording.

Helplessly, Long Er stepped forward and held down the shield. He could see the fan start to smoke. It was obvious that the fan was not sucking in and the motor was starting again.

Bai Yilong immediately rushed into the pipe, and Long Er moved his shield away.

I thought to myself that even if something happened, I just wanted to find out that Yilong would drill down by himself.

Bai Yilong felt the sound of the wind behind him, and went down the wind, which was a straight downward path. While pumping the wind into the training room, he also swept the wind into the underground.

Bai Yilong's feet were supported on the channel, and there was a fan that was sucking inward frantically below.

I should have thought of two things, and Bai Yilong was in a dilemma at this time.

The vertical pipes are falling constantly.

Helpless Bai Yilong could only take out the gunpowder in his pocket. This thing was very expensive. Each special forces worker only had one shot a year. All supplies in Black Mountain were short of, and this gunpowder only existed in the only mine.

During training, wood can only be used instead, and it is not allowed to be used in non-combat environments.

According to the truth, gunpowder cannot be taken away, but it is easy to be escorted and stolen in the arsenal. Therefore, soldiers usually store it in close proximity, using self-destruction or killing enemies.

But the current situation is not necessary to die.

Helplessly, Bai Yilong broke open the lid, then rubbed the back of the shoe, and then threw it down.

The gunpowder fell down and then hit the fan blade. The gunpowder and the fan blade exploded and the entire fan blade fell down.

The gunpowder rushed upwards, and the heat flow swept across Bai Yilong's body.

He let go of his hand and fell down.

As soon as it fell to the ground, someone soon walked over with the explosion.

This is a well-connected tunnel, and I had no choice but to move backwards.

Smoke was coming out of his body, hiding in the corner, covering his mouth, so that his breathing could be reduced as much as possible.

Bai Yilong was squatting in the corner at this time, with a door behind him.

There is a corner here, just hiding Bai Yilong.

It really exists in the basement, and it is very large.

"Why did it explode?"

"The fresh air system is broken!"

"It smells so smelly, a burnt smell."

"This one is broken. It probably has overheated. Please call someone to repair it."

"Smell it carefully, it seems to smell gunpowder!"

"Is it burning smell? Where is the gunpowder? I'll ask if the repairer comes!"

After ten minutes of waiting, the repairman arrived.

"Look at what's going on? Is there any smell of gunpowder?"

The repairman looked around and then stared at the damaged fan carefully and said, "It's not that the motor is damaged, it's destroyed by fire. Did you see the fragments? It's not a fan."

"This?" I thought the guard stretched out his hand.

The repairman found a piece of fan fragments, and the repairman found a fragment embedded in the fan blade that did not belong to the exhaust system. The fragment was the wreckage of the gunpowder tube and was immediately picked up by the guards.

"I think I need to report it, and someone may have broken in." The repairman said and began to replace the exhaust system.

The two of them discussed and then reported together.

This was a period of meritorious service, so the repairman was left to start repairing the fresh air system with tools.

At this time, Bai Yilong knew something, and it was not appropriate to run anywhere with his voice. But as long as he could change into the repairman's clothes, he would probably go anywhere.

Bai Yilong began to sneak behind the repairman, aimed a knife at his neck, covered the other person's mouth and nose and pulled it back, allowing him to lie on himself.

Bai Yilong began to drag the repairman and pulled it into the pipe.

There was a 90-degree corner, and the repairman placed it in the corner. Then he took off the other party's clothes and changed it with himself.

And tie the repairman's mouth and hands and feet with his own clothes so that he can't speak out.

Then climb down the pipe again, install the fresh air fan, and tighten the screws.

I don’t know when this repairman will wake up, and even if he wakes up, he will be trapped in the pipe.

It’s a matter of time when the other party was discovered, after all, he has been exposed.

Now it’s time to rely on this set of repairman’s clothes, and quickly see what’s going on here.

After packing up the tools, Bai Yilong walked in the underground corridor with his head down.

This is Baicheng, it is the basement of Baicheng.

Who would have thought that a large area was dug below and that there was electricity to supply it here for twenty-four hours.

What are you studying here? It seems that there is more exaggerated technology.

Bai Yilong walked around the corner and saw a group of soldiers training.

They are both elites, but the content of the other party's training is completely different.

The weapons in his hand also shot bows and arrows, but the firing speed and number of bows and arrows were simply incomprehensible to Bai Yilong.

Looking at the faces of every training soldier, no Long Qi and Long Ba were found.

I could only go to the next room. The next room was a laboratory through the glass. A group of people were tied up here, and something like a black mushroom appeared on their bodies. Their facial features were twisted and they seemed to be screaming in pain, but they could not hear the sounds made by the other party through the glass.

Fortunately, I didn't find the dragons and the sound of footsteps was heard.

Bai Yilong could only lower his head and pretend to pass by. A soldier guard at Bai Yilong with a weapon and smiled at him: "The exhaust air is repaired, right?"

Listening to the other party's voice, you knew it was the guard just now. Bai Yilong nodded immediately and did not speak.

"The light in the front C1 area is broken, please go. I'll inform the soldiers who are training and search the whole area to see if they can find the invaders." After saying that, the guard smiled and walked towards the training camp a few meters away, pressed the door open with his palm and entered it, and shouted that the soldiers who were training inside came out, indicating that there was a new mission to be distributed.

The other party only recognized the clothes and did not find Bai Yilong at the first time.

Bai Yilong walked slowly with his head down, and saw the soldiers walking around him. Looking at their new weapons, he was a little envious to the truth.

The area here seems to be the same as above, so if you think about the way of C1, Bai Yilong will understand how to get there.

Immediately calmed down and walked towards C1 area.

There is also a downward path in the corridor, and the ropes are hung on the hooks on the waist of the clothes to go up and down.

In other words, this place is much larger than what Bai Yilong imagined, similar to an unexposed underground secret base.
Chapter completed!