Lin Rui made a gesture to Sausage, motioning to go down first and let him wait for his command on it.

Sausage nodded and helped Lin Rui fix the rope on the roof. Lin Rui descended along the rope. He was a bit grateful that the position of the bathroom window was facing the sentry tower not far away.

The bathroom window was open, and the light was on inside, but no one was in the bathroom.

Lin Rui looked at it, quickly jumped in from the window, and then yanked the rope vigorously.

The knot he used is divided into double strands. One strand is used to bear weight, and when the other strand is pulled, it will open the upper slip knot. Recycle the whole rope. This will leave no traces.

Soon, like Lin Rui, Sausage used the rope to come down from the roof.

"What will the boss do next? We still don't know which floor the target is, or where his office is?" Sausage asked in a low voice.

"If you don't know, I'll look for it. There are only three floors in total. Can we find it one by one, but still can't find it?" Lin Rui smiled.

"Look for them one by one?" Sausage was stunned.

Lin Rui pointed to a cart at the door, which was a cleaning cart. Put a vacuum cleaner, a mop and some cleaning tools.

And under the vehicle, there are two sets of yellow clothes.

This is not ordinary clothes, but radiation protection suits, and there are also several protective masks.

Lin Rui put on protective clothing and a protective mask. Sausage is also neatly dressed like him.

"Okay, it looks a little bit different." Lin Rui nodded, "Don't forget to push the cleaning car up too. So when others look at us, they will know what we do.

Even if we appear in the surveillance video, it will not arouse suspicion. "

"This idea is great. But boss, what if the cleaner comes back and finds that the cart is gone?" Sausage couldn't help but whispered.

"Don't worry, their working hours are not in this time period. Take a closer look, there is a record book in the car. It records the cleaning and cleaning time of each area.

The secret society organization must be very strict. The work of these cleaners is also strict. They have detailed records of their work. "Lin Rui whispered.

"In other words, we can't meet other cleaners." Sausage nodded.

"Just pushing the car like this, chatting with me and walking forward. Write down the location where you encountered the camera monitoring, but don't panic, try to behave as normal as possible." Lin Rui whispered as he walked.

There were cameras everywhere in this building, and they were quickly noticed.

The guard in the duty room spotted them on the surveillance video, "Strange, why are there two cleaners? It's not time for cleaning and cleaning."

"Maybe it was called to work by those lab guys. Didn't you see them wearing protective suits?

All the researchers in that group are like uncles, and others have to do everything. It may have been called temporarily. These two hapless guys. "Another guard replied.

The guard nodded, "It should be so, I didn't even see them go in. I guess they came out of the laboratory."

"Are there any other abnormalities?" the other guard asked.

"Nothing else, it's normal," the guard replied.

"Forget it, when they come out, ask them what's going on." The other guard shook his head.

Lin Rui and Sausage recommended the cleaning vehicle to go all the way.

"Damn it, this is the location of the laboratory. We can't stay here for long." Sausage saw the sign at the door.

"The computer in the laboratory is data-sharing, so the computer of the crocodile is not in the laboratory. It should be in his private office." Lin Rui said in a low voice. "It must be in this building. Keep looking."

The two came to the second floor from the elevator, and then to the first floor.

The two guards on duty walked past them. Fortunately, the guards didn't seem to notice them.

The sweat came out of the sausage's head, but it was not visible when wearing a full-covering breathing mask.

"Hey, wait..." A guard suddenly turned around and stopped them.

Sausage was on the cart and stopped abruptly.

Lin Rui saw that he was a little nervous, and patted the hand of the sausage cart with one hand, indicating that he should not act rashly.

Then Lin Rui turned his head and looked at the two guards.

"Just now we smoked a cigarette and there were cigarette butts on the ground over there. Go and clean it up. You know those researchers are very picky, I don't want them to ask the captain to file a complaint." The guard made a gesture.

Lin Rui nodded to him, "This will pass."

The guard did not doubt the others, and continued to turn around to patrol.

The sausage almost hanging in his throat finally let go, "Boss, I almost wanted to do it just now."

"Relax, you are too nervous. If the guard finds you, his first reaction is not to talk to you, but to raise the gun.

When he called you just now, the muzzle of his gun was always down. This shows that he is not hostile. Lin Rui said in a low voice.

"Well, I'm really not used to such a thing." Sausage couldn't help but smile.

"Relax, you are so nervous, it is easy to be seen by others." Lin Rui whispered.

"The front is the office area. I think the Crocodile's office should be there too." Sausage whispered. "Let's pass."

"Wait first, clean up the cigarette butts in the ground. Then use a mop to mop the floor clean. Just like a cleaner." Lin Rui whispered.

"No, boss, are we really going to sweep the cigarette butts for his two bastards?" Sausage couldn't help but say.

"Yes, you have to do that. Remember that all our actions just now were recorded by surveillance cameras.

If you have any unusual behavior, it will arouse the suspicion of the guard on duty. So you best behave like a real cleaner. "Lin Rui whispered.

After speaking, he took out the broom and rag from the car, and carefully cleaned the cigarette butts on the ground.

Sausage can only follow him and mop the floor clean.

After packing up, the two people continued to push the car forward.

Their actions were seen by the guards on duty, completely dispelling the suspicion of the two cleaners.

And Lin Rui and Sausage finally came to the office area. This is a row of offices, with numbers at the door of the office.

"The **** door is locked," Sausage whispered. "Sergey is not here, I can't open the door."

"I can," Lin Rui said in a low voice, "I learned a lot of lock-opening tricks from the Russians, although they are not as good as him.

But to deal with some simple daily locks, there is no problem at all. But if there is camera surveillance at the door, I need you to help me block the surveillance. "

"Are you going to pick the lock in front of the surveillance cameras?" Sausage couldn't laugh or cry. "Isn't it, boss."