I didn't meet anyone in the corridor, and it was quiet all around. When passing by some office doors, you can faintly hear voices coming from inside.

Li Shan easily found the bathroom, entered the innermost partition, and locked the door from the inside.

After waiting for a while, the time had come to five o'clock in the afternoon, and the people in the building began to go home from work, and they could hear the sound of the door closing from time to time in the corridor, as well as the sound of chaotic footsteps, and some people came to the bathroom, they came and went in a hurry, and did not notice that there were other people inside.

Li Shan has been quietly listening to the movement outside.

There was surveillance everywhere in the building, and there must have been quite a few in the hallway outside the bathroom, so he had to stay here. At this time, there may still be people working overtime, and they have to continue to hide in this small space so as not to be seen. At this time, if an unfamiliar face appears here, it will definitely be suspected.

At almost half past seven, with the last few doors closing, the last person who should have worked overtime also left, and the whole floor suddenly fell silent.

Li Shan dared to push open the door of the partition and walked out, this bathroom is not large, there are no windows, it is divided into two parts, the outer room is the bathroom, and the inner room is the bathroom, and the scope of his activities tonight can only be limited to these two areas.

The interior of this building is in the shape of "Hui", and Li Shan's current position is in the middle of the "mouth", which is the central area of the building, which may be affected by the barrier of the surrounding buildings, and the mobile phone shows no signal, and it is impossible to get in touch with Zhou Nan outside. Fortunately, he was prepared, and he had already downloaded a few movies on his mobile phone, and he could watch them quietly with headphones for a while, so as to pass the long night.

However, before that, there is still a pass to pass, and that is that security guards will come here to patrol around 12 o'clock in the evening, and places like the bathroom are the key areas to be inspected.

During the inspection, they were required to go into the bathroom and inspect each partition one by one. Maybe some security guards don't really come in, just look at the door and do it perfunctory, but what if there is a serious security guard coming in, you can't take chances, so you have to take some necessary measures to avoid it in advance.

Zhou Nan had already thought about this, and when the time came, Li Shan would hide in the ceiling above the house.

Usually, the ceilings of office buildings are installed with suspended ceilings, which are made up of some aluminum alloy gussets and support frames (also called keels), and there is a certain amount of space between the ceiling and the real roof, which is enough for a person to hide in it.

These levers are snapped together by four slots on the edge, making them easy to install and remove.

Li Shan only needs to remove two boards from below to allow himself to enter, and then the whole person is attached to those support frames, and then buckle the boards from the outside, so that nothing can be seen from the outside, so as to achieve the purpose of hiding, only wait for those security guards to finish patrolling before coming down.

Looking at this structure, it seems that it is not easy to climb to the ceiling to support it. He wanted to give it a try now so that nothing could go wrong when he got it.

Li Shan's right hand and right foot supported the wooden plank of the partition, while his left hand and left foot supported the tiles, and his whole body was in a large zigzag shape, and then his hands and feet alternately went up.

The wooden board of the partition is made of ordinary particleboard, which only plays the role of a partition and cannot bear any weight.

There are some lines on the board, and the foot pedals feel a lot of friction on it. The installation quality is still very good, and there is no unbearable situation that Li Shan is worried about.

But another situation that gave Li Shan a headache appeared, that is, the tiles pasted on the left wall, the surface of the tiles was very smooth, and the feet couldn't stop slipping on it.

So, Li Shan took some water from the water tap and sprinkled it under his feet, which could increase the friction of his feet on the wall, and he tried to climb up a few steps, but he slipped under his feet after a few steps.

This was repeated several times, and it ended in failure.

In Zhou Nan's plan, this detail was not taken into account, if only there was a preparation in advance, it would not be so embarrassing now.

Although the ceiling is not high, it is not easy to go up if you want to. But if you can't get up, what if the security guards come in a while?

Li Shan was a little anxious, this operation had already reached this point, and he couldn't fall short for this reason.

This kind of climbing is also quite physically demanding, and he rested for a while, and then prepared to climb again, but his heart began to waver a little.

Climb up anyway, he kicked the wall with his foot as if venting. But he didn't dare to exert his strength, for fear that the noise would be too loud to attract the attention of others. The quality of this tile paste is not very good, the pedal on it seems to be elastic, swaying and shaking, as if there is no solid appearance, there are a few tiles obviously more protruding than other tiles, this is not pedaling, the more you pedal this bulge is more obvious.

Then he kicked hard a few more times, and the strength of the tile on the wall increased as he stepped on it, and even the bulge became more and more obvious, so that he could use his fingers to pull it.

Wait, Li Shan seemed to realize something, and stretched out his hand to pull the tile, but he didn't expect this trigger to move half of the wall over, and it seemed that he didn't exert much force in his hand.

Li Shan was taken aback, at this time there was a big black hole behind the wall, and when he looked inside, he suddenly realized that this was the water pipe switch control room, and the movable "wall" outside was actually a secret door, with tiles pasted on it, and the surrounding walls were basically tightly integrated, and ordinary people really couldn't see it from the outside.

There are three or four square meters inside, and it is not a problem to accommodate several people. Li Shan was overjoyed, which meant that he didn't have to bother to drill that damn hanging item anymore.

After making up his mind, Li Shan was no longer distracted by this. He came out and took out the electronics, bottled water, and some food from his backpack, then found a place in the corner and put the backpack on the floor as a cushion, and sat down.

The corridors of this building are all installed with sensor lights, and at the moment, because no one has been active for a long time, the sensor lights are turned off one after another. As the last light turned off, the building fell into darkness.

Li Shan's movements also became very sluggish, for fear that the range of action would be too large and cause the reaction of those sensor lights, it is conceivable that the monitor screen in the security room, which was still black, suddenly lit up, how could it not arouse the vigilance of the security guards.

Fortunately, Li Shan didn't need to do anything now, all he had to do now was to wait, patiently waiting for the dawn of the next day.

Looking at the time, it was only half past nine, and there were almost nine hours left before the time for the action.

The whole building is as silent as death, there is no signal here, there is no way to get in touch with the outside world, Li Shan seems to be cut off from the outside world, which is a bit like a scene in the movie Resident Evil.

The bathroom door was facing a glass wall, and the light coming from outside the building from somewhere, through the closed shutters on the inside of the glass wall, reflected on the ground, showing a lot of slender light and shadow, making the corridor not look very dark.

Dad should still be watching TV, he starts watching CCTV's news broadcast at 7 o'clock every day, and then turns to Xiangjiang TV's current affairs report. The contents of it are nothing more than the turmoil in the Xiangjiang River, the situation in the Taiwan Strait, a certain area of Iraq that has been bombed again today, and which country will impose sanctions on China's exports tomorrow, etc. The old man is really, how much money do you take, so concerned about national affairs, take the money to eat tofu, and the heart of a seafood eater.

Mom may still be busy with housework, as if she has never seen her idle, every day until the house is cleaned up, she can feel at ease. After finishing the housework, she would also watch TV with her father and discuss a few national affairs with him.

Xiao Nizi should be on duty at this time, I don't know if she is still busy, the conditions of the quasi-five-star hotel are good, but the management is too strict, and it can't go on like this, after all, this industry is to eat youth, and it will be better to find a more stable job in the future. This year's Chinese New Year, this girl said that she wanted to go to their house with her, is this the so-called proposal, her prospective son-in-law can't go to the door of her mother-in-law's house for the first time, what should you buy, although Xiao Nizi said that she doesn't have to be so troublesome, but she can't be too shabby.

Stunned for a while, Li Shan gradually withdrew his mind to his eyes, still didn't want to think so much, and first concentrated on the matter in front of him.

Li Shan turned on his mobile phone, pulled up the movie he had ordered in advance, and watched it. Fortunately, the power socket here is quite complete, and you don't have to worry about the phone running out of battery.

He watched it for nearly five hours, during which at about twelve o'clock, the building's security personnel really came to inspect on time, fortunately, Li Shan had already prepared, and it was estimated that before they were about to arrive, they hid in the secret door, but there was no danger.

After the security guards left, the movie couldn't stand it, not because the movie was not exciting, but because the mobile phone screen was relatively bright, but it was a relatively dim place around, so the contrast was relatively large, and it took a little time to stare at the mobile phone screen for a long time.

During the day, there are people working in the building, and the central air conditioning switch is quite comfortable, but now at night, the central air conditioning is turned off. It was already late at night, and the heat of the building had already dissipated during the day, coupled with the gusts of cold wind blowing from somewhere in the corridor, making Li Shan feel more and more cold, and he couldn't sit down quietly at all.