Thinking of this, Lin Feng immediately dialed the phone.

"Hey, it's one o'clock in the morning, are you calling Xiao Li? He doesn't sleep, does he? Jiang Ningyu saw Lin Feng's call and asked.

"What to sleep, the fingerprint comparison has not come out yet, what sleep, I dare to cut him if he dares to sleep." Lin Feng said viciously.

He's almost going crazy with this case, and he won't let go of the slightest clue.

The phone was quickly connected, and Xiao Li's voice came: "Hey, Team Lin, what's the matter?" ”

"I'm in Huzhou Hotel now, can you find the structure of Huzhou Hotel?" Lin Feng said.

"The structure diagram, there should be it in the fire protection system, I'll go and check it." Xiao Li replied.

At this time, Jiang Ningyu said beside him: "First look for the structural diagram from the sixth floor to the ninth floor, and don't use the others for the time being, let's investigate these first." ”

"Oh? Brother Jiang is also here, wait a minute, I'll find it and send it to Team Lin. Xiao Li hung up the phone after speaking.

It didn't take long for the structural diagram of the building to be sent to Lin Feng's mobile phone, and the two of them began to study it after opening the structural diagram.

"The picture is too small, and such a large structural diagram can't be seen clearly with a mobile phone." Jiang Ningyu's eyes were tired.

Lin Feng couldn't see clearly after watching for a long time, there was no way, the two had to go back to the office, and before leaving, Jiang Ningyu asked the girl: "We plan to go back to my office, will you go back with us?" ”

The girl shook her head: "My room is here, and the things I am looking for are also here, I will not go back, big brother, you can go, I want to find something here." ”

Hearing the girl's words, Jiang Ningyu couldn't help it, she was a ghost, she didn't have to sleep, and they couldn't, it had been a day now, and both of them were very tired, so Lin Feng asked the guards to come back, and told them that no one could enter without his permission, and if they wanted to enter, they had to go through his permission.

After the two of them finished arranging, they went back to the office, and when they returned to the office, Jiang Ningyu immediately turned on the computer and saved the structural diagram of the Huzhou Hotel to the computer.

The two of them lay in front of the computer and began to study the structural diagram, the structural diagram was very complete, there were rooms, air conditioners, and all the structures of the mezzanine, but there were no clues, at this time Lin Feng saw a straight passage leading from top to bottom.

He pointed to this passage and asked, "Ning Yu, what do you see here?" ”

Jiang Ningyu took a closer look at the enlarged structure diagram, and it said the water circulation system.

"Water recycling system? This is the room that connects the missing, can it be here? Lin Feng said.

"Unlikely, this space is too small, except that the pipeline can only accommodate one person at most, and there is a wall of more than twenty centimeters between the water circulation system and the missing person's bathroom, how can you get in?" Jiang Ningyu retorted.

"Excluding all possibilities, then the most unlikely is the answer, we have checked all the places, only here is not checked." Lin Feng said.

"But we checked the bathroom, it's all tiled, there are no gaps, how can we get in and out?" Jiang Ningyu still didn't believe it.

"Because of this, we don't check the bathroom too carefully, and the bathroom is clear at a glance, and only in this way can we ignore it." Lin Feng felt that the biggest suspicion in this case was in this water circulation system.

"Then check it out tomorrow?"

"Tomorrow, human life is at stake, go, go now." After Lin Feng finished speaking, he pulled the wailing Jiang Ningyu and left the office.

Returning to the Huzhou Hotel again, the two came directly to the seventh floor, at this time there was only one person left in the policeman on duty, two took turns to rest, and the other went to sleep.

The police were also surprised to see Lin Feng coming back, but he didn't ask much, the criminal police are like this, sometimes they find clues, and they have to run over in the middle of the night.

Lin Feng and the two entered the room, the girl was still circling in the master bedroom, and the two went straight to the bathroom and began to investigate inch by inch.

As a result, the two knocked up and down, left and right, and did not find any hollow echoes, indicating that all the tiles were solid behind them.

At this moment, the two fell into a predicament again, and the clue was broken again.

"It's all solid, there are no secret doors at all, I'll just say that with such a thick wall, how can it be through?" Jiang Ningyu was already tired and didn't want to move.

Lin Feng was also very tired, but in comparison, physical exhaustion was still secondary, the main thing was spiritual, he had never encountered such a case, he had thought of all the methods, but he still found nothing.

"You say, could it be a supernatural case?" Lin Feng gave up, he didn't think it was a man-made case now.

"Damn, it's only been a few days, and you've started to believe in supernatural cases?" Jiang Ningyu said with some exaggeration.

"It's not that I don't believe it, now there is no way to investigate this case at all, you say, it's such a big house, where can people hide, there are no clues, the scene is completely destroyed, anyway, I can't investigate." Lin Feng was a little self-defeating, he had been a police officer for many years, and he had cracked a lot of cases, but it was the first time that he had no clue about a case like this.

Jiang Ningyu frowned when he heard Lin Feng's words and said, "Give up like this?" Although I'm tired, I haven't given up yet, I just plan to rest well and spend more energy tomorrow to solve the case. ”

"Me? I didn't give up, I was just tired, my heart was tired, my brain was tired, my whole body was tired. Lin Feng said tiredly.

"Let's go, go back and rest, I'll continue the investigation tomorrow, maybe there will be good news then." Jiang Ningyu persuaded.

"Let's go, go back to sleep, I'll be here tomorrow." Lin Feng also cheered himself up.

So the two told the police again, and the repeated instructions were mainly for fear that the people who were going in would scare the girl away, and if they were scared away and wanted to find her, they had to go outside in circles.

Back at the office, the tired and paralyzed two fell asleep without even washing.

The next morning, the two of them slept until more than eight o'clock before getting up, and when they came to the hotel, they found that there were already people waiting for them, Lin Feng's team members were all on the seventh floor, and they were all angry, and it seemed that they didn't sleep well yesterday.

Xiao Li saw Lin Feng and the others coming, and shouted directly: "The deputy team is here." ”

Because of Lin Feng's order yesterday, no one else entered the room, and they all waited outside, Lin Feng's squadron had a total of twelve people, except for two office staff, everyone else gathered here, including Xiao Li, although Xiao Li is a technician, but for such a case that is not dangerous, he will sometimes come to the scene.

Especially in such a closed room case, not only must have superb detection methods, but also need IQ, and Xiao Li, who has the highest IQ in the team, is of course going to come to the scene.