Xiaolan hurriedly helped Conan up and touched her forehead. The worry on Xiaolan's face was self-evident: "It's so hot, it's burning so badly!"

Officer Megure hurriedly asked the police to call the ambulance. He turned around and looked around and asked, "Ah, where is Hattori Heiji?"

Butler Xiaochi replied: "The young man just asked about the location of the Japanese room and went out."

Although Conan felt very uncomfortable, he did not faint. When he heard that Heiji had gone to the Japanese room, he thought of something in his mind, but his current physical condition was, well, hard to say.

Heiji in the Japanese room found something from the trash can, a smile appeared on his face, and he said secretly: Kudo Shinichi, this time, I, Hattori Heiji, will definitely win over you!

Xiaolan couldn't let Conan lie on the floor of the study room all the time. Mura Takayama next to him said: "You can let this child lie down in my room, the one at the end of the corridor."

Xiaolan had just walked out of the study with Conan in her arms when she happened to see Hattori Heiji walking in with a smile on his face.

I heard Heiji say to everyone: "I already know the techniques of the secret room. Of course, I also already know who the murderer is!"

After hearing this, everyone looked at Heiji in shock. Officer Megure next to him looked at the confused Uncle Mouri with disgust: "Aren't you usually very powerful? Why are you so useless today?"

Uncle Maoli still wanted to explain, but he didn't know how to explain it. Could it be that I fainted every time I solved a case?

Conan, who was in Xiaolan's arms, saw the fishing line in Heiji's hand from the side and thought of something. However, Xiaolan did not let Conan stay in the study room. Seeing that the study room was getting farther and farther away from him, Conan couldn't help feeling helpless.

a feeling of.

Heiji said to everyone: "As I said before, the windows in the room were locked from the inside, and the only door was also locked at that time. Although it seemed to be an impossible secret room murder case with no gaps and no opportunities.

"

Heiji paused, pointed to the study door and said, "Actually, there is a gap in the room that looks like a secret room!"

Uncle Maori looked carefully at the study door pointed by Heiji, and found the gap under the study door. He said teasingly: "You don't mean that the prisoner threw the key into the victim's pocket through this gap, do you?"

Heiji took out the fishing line from his pocket and said: "You are right, as long as you have tape and the fishing line I just found to tie the iron needle, it will be fine!"

Uncle Maoli looked at the fishing line and thought for a long time but couldn't figure out why he said that.

The scene changed. After going to the toilet, Guangyou was humming a tune and walking back to the study. He saw Xiaolan holding Conan and walking into a room at the end of the corridor. Guangyou raised his head and thought about something.

However, Guangyou didn't understand. He had no interest in the case and hurriedly followed Xiaolan into the room.

When she entered, Xiaolan was comforting Conan. When she turned around and saw Guangyou coming, she said to Guangyou: "Guangyou-chan, help take a look at Conan. I'll go outside and wait for the doctor!"

After saying that, Xiaolan hurriedly ran out. Guangyou looked at Conan on the bed. At this time, Conan was breathing heavily and said to Guangyou: "Guang, Guangyou, I feel that my heart feels so uncomfortable! It's so hot!"

It feels like it’s about to burst! Guangyou, can you help me! I don’t want to lose to that black charcoal head!”

Guangyou seemed to have just remembered at this moment that Conan seemed to be changing back to Shinichi in this episode, so he didn't panic at all and waved his hand and said, "It's okay, it's okay! You'll know later."

Conan didn't have time to argue with Guangyou, he was breathing heavily and holding his heart, looking uncomfortable.

On the other side, Heiji held a needle and placed it in front of Megure who was lying on the ground. Megure looked at the needle nervously. He was really afraid that if he missed it,...

Heiji didn't care whether Megure was nervous or not. He pointed at Officer Megure with a target, and then said to everyone: "This is what the murderer does. Now he stabs the victim's neck with a poisonous needle, kills him, and then snatches the victim's key."

After passing by, pull out the fishing line tied with the iron needle, use this fishing line to help the other end of the iron needle stick to the tape to fix it, then tie one end of the iron needle, stuff it into the victim's pocket, and then

Thread the fishing line through it..."

Heiji pulled the hopeless Officer Megure and made Megure sit at the desk in a posture with his hands on his face: "Finally, let the victim sit on the chair and assume this posture, and then just hold the two sides of the fishing line.

Just walk out, so you can pull the fishing line out from the crack in the door, then close the door, lock the door, tie the fishing line to the key, and then pull it through."

Everyone listened to Heiji's reasoning and watched Heiji's operations. The key fell directly into Officer Megure's pocket just as Heiji said.

Although he didn't want to admit it, Officer Megure couldn't help but admit the correctness and feasibility of this method.

Heiji originally wanted Kudo Shinichi to come out and make gestures, but after waiting for a while, Kudo Shinichi did not appear as he expected.

Heiji smiled and said to everyone: "After killing the victim, it takes 5 to 6 minutes to complete the technique I mentioned, and Fan Sui's time is from 3:30 to 4:00, so he came back here with us

Mrs. Mura ruled out the suspicion, and of course the housekeeper, Mr. Koike, was also impossible. Although Mr. Takashi Mura and his girlfriend had also been to the second floor at that time, they did not have enough time, so the suspicion was also ruled out."

When Heiji said this, he turned to look at Muratoshi and said: "Only you, old gentleman, only you have this possibility! The evidence is the fishing line used to tie iron needles that I just found in the Japanese room.

Fishing line is a special kind of fishing line made of new materials, you don’t know."

Seeing Murasaki's somewhat panicked eyes, Heiji continued: "I remember that we met you on the way to the study room, and you seemed to be going to the Japanese room at that time. In other words, you went there after the murder.

Japanese room, you must think that your work is perfect, right? The fishing line I found in Japanese room’s trash can is the most powerful evidence!”

At this time, Xiaolan opened the study door, looked at everyone, and asked: "Have you seen Conan? And Guangyou, they disappeared just now."

Except for the two police officers, no one paid attention to Xiaolan, because all their attention was on the murderer. Seeing this, Muratoshi lowered his head and said, "Yes, it's me!"

A smile appeared on Heiji's face and he thought to himself: I won! Kudo!

At this time, a voice reached everyone's ears: "No, you didn't kill anyone at all! This old gentleman, he is simply lying!"
Chapter completed!