After Li Xiangnian opened the door and walked into the office, Liu Chao, who was sitting on the chair, hurriedly sat up: "Yo, you are here, I guess you still have to come, has the child been found?" ”

"Not yet." Li Xiangnian walked to the desk and sat opposite Liu Chao, "I'm not here to adjust the monitoring today, I want to ask about other things." ”

"Just ask, there's nothing I don't know about this community. A while ago, the water pipe in Building 22 broke, and I know exactly how many maintenance workers were hired and how much money was spent. Liu Chao patted his round belly and said.

"About the basement." Li Xiangnian took out his notebook as usual, "Has the basement door been locked all the time?" ”

"Ah, that was probably locked last year, because there are always children playing hide and seek or something, the New Year's group of bear children also bought a toy gun, went in and broke the bulbs, reloading the bulbs did not cost less, and then locked in order to avoid children from entering. However, every resident has a key to the basement, and if anything is left in the basement, it can be opened. Liu Chao was angry when he talked about these bear children.

Li Xiangnian's eyes lit up: "So, do you have the key?" ”

"Of course, you're going to go?" Liu Chao asked.

"Yes."

"I'll go with you, it's okay today." Although Liu Chao didn't quite understand what a high school student running away from home had to do with the basement, since it was the police who were going, he still enthusiastically decided to follow.

"It's fine." Liu Chao must be more familiar with this piece than him, so he didn't shirk it.

The two came to the second unit of Building 11 together, Liu Chao took out a bunch of keys, found the key number 11 and opened the door to the basement.

"The key is different in every building?" Li Xiangnian noticed this small detail and asked.

"Yes, every building is different." Liu Chao packed up the key, and with a sigh, the voice-activated light immediately lit up.

"What about each unit?" Li Xiangnian glanced inside the basement a few times.

"The keys are the same for all six units in each building." Liu Chao said with a beer belly and a smile.

"Why?" Li Xiangnian walked in.

Liu Chao followed behind him: "Because the basement of each building is connected, the place where you go down from unit 1 is the same as unit 2, in this case, the key is not the same." ”

Li Xiangnian stopped: "What do you mean?" ”

"It's that the basement of each unit is connected, and you can enter the first storage room from unit 1, and you can also come from unit 2." Liu Chao explained again.

"So...... If you go down from unit 1, you can get out of the door of unit 2? Li Xiangnian went down the stairs and glanced into the storage room in front of him.

"That's right, that's how the bear kids play, going in from one unit and coming out of another." Liu Chao nodded and said.

"I see." Li Xiangnian pointed to both sides, "Let's divide into two ways, you take a look at each storage room on the right to see if there is anything special, and I'll look at the one on the left." ”

Liu Chao said: "Okay, by the way, that storage room is a manual switch, and the button is on the wall inside against the door." ”

"Thank you." Li Xiangnian searched for it, and searched every storage room once, but the result was unsatisfactory, and he didn't find anything.

"Nothing." Liu Chao and Li Xiangnian, who were tired, said together.

"Well, it doesn't seem like there's anything wrong." At this time, the two were standing on the edge of the stairs of the door of the other unit, and Li Xiangnian glanced at it, "Let's go from this side." ”

"Done." Liu Chao found the No. 11 key again, climbed the stairs and opened the door.

Li Xiangnian, who followed Liu Chao out, looked around and found that he was indeed not in the same unit.

"So what's next?" Liu Chao asked as he locked the door.

"Where can I go up to the rooftop?" Li Xiangnian, who was standing at the door of Unit 3, asked.

"That's right, this unit happens to go straight to the rooftop." Liu Chao was about to go out, and after hearing what Li Xiangnian said, he turned around and walked up, "Let's go up first, I'll call someone to deliver the key." ”

"Okay."

The two came to the sixth floor, Liu Chao hung up the phone out of breath, and looked up at the wall with a ladder: "You want to go up?" ”

The ladder is about 1.5 meters above the ground, and the small door above your head can be opened to the rooftop.

Li Xiangnian visually measured the height and felt that this height was not a problem, even if he was old, it would not be very difficult: "Yes, if I didn't go up, I wouldn't have come here." ”

"It's also huh." Liu Chao touched the back of his head and said.

After explaining to Liu Chao, Li Xiangnian looked up at the lock that locked the small door, and then his pupils shrank, and he walked over by himself, first grabbed a ladder with both hands, stepped on the lowest ladder with both legs while exerting force, and finally climbed up with both hands.

Before Liu Chao could ask you what you were doing, Li Xiangnian reached out and grabbed the lock: "No need to ask someone to send the key, there is no lock." ”

Removing the lock and hanging it on the side of the ladder, Li Xiangnian pushed the small door, and with some effort, pushed the small door open: "Do you want to come up?" ”

"Me...... I won't go up. Liu Chao grinned.

Liu Chao can be regarded as self-aware, and his physique, even if Li Xiangnian pulls it, he can't get up.

"Then wait for me for a few minutes, and I'll be down soon." Li Xiangnian entered the small door alone and came to the rooftop.

There was nothing conspicuous on the rooftop, and a small part of the rainwater that had rained a few days ago had accumulated in a slightly sunken place, and it did not drain directly down the sewer pipe to the downstairs.

Some of the paint on the walls has fallen off, and some places have been soaked in water and the color has changed.

There was a damp smell in the air, Li Xiangnianzi took a closer look, there was nothing unusual on it, he had mixed feelings in his heart, and he didn't know if it was good or bad.

After going down and locking the door, he let out a cloudy breath and asked, "Why didn't you lock it?" ”

"Maybe some worker who came up forgot to lock it, it's not impossible." Liu Chao thought of this.

"When was the last time a worker went up to the rooftop of this building?" Li Xiangnian wiped the rust on his hands, and the two went downstairs together.

"This building...... It must have been a month or two, and the drainage pipe above was blocked by plastic bags blowing up from the wind, and they went up to dredge it. Liu Chao thought for a while and replied.

Li Xiangnian thought in his heart, it had been so long that the workers couldn't say whether they remembered it, but he still decided to ask: "Do you have their contact information?" ”

"Would you like to ask about the lock? Hey, how long has it been, I guess people have long forgotten that the lock was still unlocked at that time. Liu Chao said.

"I can't say for sure." Li Xiangnian paused when he walked to the third floor, pointed upstairs and asked, "By the way, the residents on the sixth floor may not know." ”

"There are no residents on the sixth floor of this building." Liu Chao waved his hand, causing Li Xiangnian's idea to collapse.

After returning to the property, Liu Chao found out the contact information of the workers and asked questions about whether the roof door was locked.

To Liu Chao's surprise, the workers replied that they would not forget the stubble under normal circumstances, so the forgetting of the lock should not happen.

The tone is not very sure, and for Li Xiangnian, the value is not too great. But at the same time, he was puzzled, if he reasoned according to that possibility, there would definitely be some clues to be found in this building, how could it be empty?

Could it be that the clues will be in Zhang Yichi's home? It is unlikely, and he does not have a search warrant, so it is not easy to apply for a search warrant without conclusive evidence, let alone enter Zhang Yichi's home to find something.

Puzzled, he walked to the first floor, and after following Liu Chao to lock the door of the basement of another unit, Li Xiangnian suddenly opened his mouth.

It was as if he was in someone's body now, doing something creepy along his lines.

"Tune up the monitoring!"