After waiting for a few minutes, there was a sound of uniform footsteps in the office building, and they walked to the main entrance with guns in their hands and stopped moving.

Yun Xin watched secretly, wondering in his heart, why didn't they just come out and stop at the door?

Yun Xin noticed that not only did these guards with guns not cross the main gate, but even the old man who watched the door stopped inside the main gate, even if he couldn't see it, he didn't take a step forward.

Could it be that there is something at the main entrance?

In the next second, Yun Xin's doubts were solved.

I saw that the office building was shrouded in golden light, like a golden lid, protecting it inside.

What is it?

According to the knowledge in the inheritance, Yun Xin probably guessed that this is a bit like the guardian formation of the cultivation realm, although the level is not high, but it is obviously enough to use on the earth.

Fortunately, I didn't break in recklessly just now, otherwise, I don't know how I died.

When the golden light disappeared, the group of guards with guns came out of it.

The guard who came to the end suddenly felt a stomachache, he covered his stomach and said to his companion, "Brother, you go first, I'll go for convenience." ”

"Go and get back."

"Okay."

The guard broke away from the group and walked towards the dark corner with his belt in hand.

Forcibly breaking in was obviously not possible, Yun Xin looked at the lone guard, and Yun Xin suddenly had an idea.

If she changed into a guard and infiltrated the office building, it would not be easy.

So, she ran the Bagua Step, and at the fastest speed, she ran towards the lone guard, and when she grabbed the guard's shoulder, she brought it into space.

entered the space, and before the guard could react, her right hand was filled with spiritual power and hit the guard's head fiercely.

It's not once or twice that Yun Xin has done such a thing, and with her first experience, she is particularly comfortable doing it this time.

After the guard was unconscious, she directly took off the guard's clothes and changed them, and changed into this guard's appearance.

After everything was ready, Yun Xin came out of the space and swaggered towards the office building.

The old man was about to restart the formation, and when he saw the guards of the office building coming back, he hurriedly asked, "Little brother, why are you back?" ”

Yun Xin replied in a suppressed voice, "There is an emergency that needs to be notified to the captain. ”

"Let's go, then." The old man was afraid of delaying the urgent matter, so he urged Yun Xin to hurry in.

Yun Xin was not polite and went directly into the office building.

Gong Yu said that Hu Siguan was sent to the underground laboratory of the office building.

So, Yun Xin found the staircase that led to the underground.

The stairwell was pitch black, and he couldn't see anything, so in order not to attract attention, Yun Xin had to go downstairs in the dark.

I don't know if it's an illusion, every time Yun Xin takes a step up the stairs, he feels slimy under his feet, I don't know what it is, and the further down he goes, the tighter his feet are glued, and when he gets to the back, it is difficult to walk an inch.

Yun Xin sensed that something was wrong and wanted to go back the same way, but he didn't want to, the door of the stairwell had disappeared without a trace.

The feeling of uneasiness became stronger and stronger, and Yun Xin chose to return to the space without hesitation.

But in the next second, Yun Xin's face changed greatly, and she found that she couldn't enter the space.

What the hell is going on?

Just when Yun Xin was in doubt, suddenly, a faint fragrance arose.

"I'm so sleepy, I want to sleep~"

Yun Xin felt his brain groggy and his eyes tired.

"Can't sleep, can't sleep~"

Yun Xin shook his head vigorously, fighting with drowsiness.

But in the next second, Yun Xin fell into a deep sleep.

In the darkness, a voice suddenly sounded.

"This new test subject is very good! is several times better than that named Gu Feng, if we experiment with her this time, our chance of success is 80%. ”