"Where are the four of them now?" Officer Twilight hurriedly asked. Pen, fun, pavilion www. biquge。 info

"They just asked me for the key to Takai's room, and then went up to the 21st floor." Miss Shimoda pointed to the top of the building and said to Officer Twilight.

Officer Twilight hurriedly led his men upstairs. When Officer Twilight and the others rushed to the door of Takai's apartment, they happened to see Yibin and them standing at the door of Takai's room.

"Ahh I knew it was the four of you. It's good that you haven't opened the door yet. Officer Twilight hurriedly ran towards the group.

"Okay, let's just leave it to our police to deal with it next."

"What nonsense are you talking about? We've all done our investigations. Pingji complained.

"That's right. I also took a lot of photos of the scene. Judy said, pulling out her camera.

"Officer Twilight, you're a little slow to come." Yi Bin complained.

Officer Twilight looked at Yi Bin who was talking coldly speechlessly: Hehe...... We rushed over as soon as we got the report, okay?

"Was this door really locked?" Officer Twilight opened the door and asked a few people.

"Well, yes." Conan confirmed.

"Oh? So this room is a secret room, right? Then the case can be closed with suicide. Officer Twilight was quick to draw conclusions.

"Nope. We thought so at first, but after seeing the curtains of the room where Mr. Takai fell, we didn't think so. Heiji took Officer Twilight to Takai's room where he had fallen and pointed to the curtains.

"Huh? The slide bar of the curtain was broken, and the curtain also had traces of pulling. Then this is not a suicide case! Officer Twilight saw obvious abnormalities on the curtains.

“Murder。” Teacher Judy whispered. Officer Twilight and Heiji both looked at Judy-sensei.

"Oh~ I think this is the secret room murder that you often see in movies or novels, right?" Teacher Judy had an excited look on her face. It seems that he is very interested in the case.

"I haven't asked you yet. I'm talking about Teacher Judy. How did you end up here? Officer Twilight asked as he walked up to an excited Teacher Judy and asked with an unhappy expression.

"Because my room is right next door. The three of them came here to look for me today, and when I was about to go out to dinner with them, Mr. Takai fell from the upper floor, and if it weren't for Mr. Hirokaze, I would have been hit by Mr. Takai. Teacher Judy explained.

"I see." Officer Takagi had a knowing expression.

"That's right, that's right." Ping Ji said curtly.

Yibin shrugged his shoulders at Officer Twilight. It means that Teacher Judy is right.

"So, do you already know the secret room's methods?" Officer Twilight asked a few of them.

"Nope. I haven't figured it out yet. All I know now is that the murder may have something to do with the marks on the glass. Heiji said, pointing to the strange mark on the window where Mr. Takai fell.

"Nope. Actually, I already know how to do it. Before Officer Twilight could walk to the window to check, Yibin spoke.

"What? Is it true? Bo Feng-san. Officer Twilight stopped and looked at Yi Bin and asked in surprise.

Conan and Heiji also looked at Yibin in surprise. Several of them came to Takai's house at the same time.

Everyone has the same amount of time to contact the case. He hasn't even understood the method of murder in the secret room, and Yi Bin has cracked the method of murder in the secret room so quickly. In making Conan and Heiji somewhat incredulous.

"That's right. In fact, the methods used by the prisoners are very simple. It's just that everyone didn't carefully examine the crime scene, and second, they didn't connect all the clues. If you do these two things, I am sure you will also understand the methods used by the prisoners. Yibin walked to the window, leaned on the windowsill, and said lightly.

“oh！ Bo Feng-san, have you really broken the criminal's technique? Then tell me quickly. The teacher is really curious! Teacher Judy came to Yibin and asked excitedly.

"Hmph~~" Yi Bin saw that everyone was looking at him, so he began to explain.

"There are seven clues that we know now."

"First, the curtains in Mr. Takai's room where he fell from the stairs have traces of being pulled by Mr. Takai. This shows that Mr. Takai must not have committed suicide. We can be sure of that. After all, a person who commits suicide would not do such an action. I won't say much about that. ”

"Second, Mr. Takai's mobile phone. His phone fell to the ground before Mr. Takai. There is no doubt about this, and all four of us have seen it with our own eyes. So it means that when Mr. Takai grabbed the curtain, the phone fell out of his hand first. As for whether it was an accident or Mr. Takai took the initiative to throw it, we will talk about it later. ”

"The third point is that there is a text message and a phone call in Mr. Gao Jing's mobile phone, both of which were sent not long before Mr. Gao Jin fell from the building. And the people who texted and called, Mr. Nakamachi and Mr. Kawakami, respectively. As for whether they have anything to do with Mr. Takai's death, we'll talk about that later. ”

"The fourth point. Mr. Takai's fall was only about an hour before Ms. Shimoda sent Mr. Nakamachi and Mr. Kawakami away. Then it means that Mr. Takai, who has fallen asleep drunk, will definitely not be very clear-headed. ”

"The fifth point is what Heiji just said, the strange mark on the glass. If you look closely, you should be able to tell that it was a sign of being hit by something. Yibin stretched out the window with his hand and felt the abnormal mark on the glass.

"Sixth, although the scene was covered up by the murderer, if you look carefully, you can still see some clues. The original location of the bed was not next to this window, but next to the window where the outside was the balcony. If you call Ms. Shimoda, you should be able to confirm this. ”

"The seventh point is also a hidden clue. I don't know if you have noticed that the mobile phone reception in the deceased's room is very poor. Bad enough to the point where it is likely to affect the call. Yi Bin took out his mobile phone from his arms and pointed out the signal logo on the mobile phone to Officer Dusk.

"Well, the signal is really bad." Officer Twilight glanced at Yibin's mobile phone, then took out his own mobile phone to check the signal strength of the mobile phone and said.

"So after connecting all the clues, you can roughly deduce the scene at that time." Yibin took back the phone that had been handed to Officer Twilight.