Conan's Almighty Extraction

Shiraiwa Maha stepped forward to check the situation of Professor Hirota, and found that Professor Hirota was dead, and the cause of death was probably the scar on the back of his head.

The next step is naturally to call the police, and then an acquaintance of Shiraiwa Maha leads a team to the scene, but this time the acquaintance is not the Megure police department, but the police officer Yokomizo who has already been transferred to Shizuoka Prefecture.

Police officer Henggou didn't expect to meet Baiyan Maha here, so he greeted him unexpectedly: "Brother Baiyan, why are you here?"

"Long time no see, Officer Henggou."

Bai Yanzheng responded with a smile and explained: "A friend of mine sent her own disk to Professor Hirota by mistake because of carelessness. I came here to get back that floppy disk."

"Well, let's talk later, I'll go to work first."

Police officer Henggou no longer chatted with Shiraiwa Maha, and arranged for his police officers to carry out on-site investigation.

From the analysis of the traces at the scene, it is very likely that Professor Hirota wanted to take something off the bookshelf, so he stepped on the bookshelf, and lost his balance, and the whole bookshelf fell down and pressed Professor Hirota.

Coincidentally, the back of Professor Hirota's head hit the decoration that fell earlier, causing excessive blood loss and shock, eventually leading to death.

A forensic doctor picked up the blood-stained ornament, compared it with Professor Hirota's body, and reported to Police Officer Henggou: "Officer Henggou, the shape of the ornament matches the wound."

Officer Henggou nodded and speculated: "It seems that this incident was indeed an accident. The best evidence is that the doors and windows of this room have been locked, and the only key to the room is also pressed in this scattered book. Under the books."

After inspecting the scene, the police initially concluded that Professor Hirota's death was probably accidental. However, Shiraiwa Maha, who had been investigating the scene for a while before the police arrived, raised an objection at this time.

"Officer Henggou, this is not an accident. Professor Hirota was killed by someone else."

Bai Yanzhenyu pointed to a telephone landline that was pressed by books on the ground, and reminded: "Look at this telephone landline, it should have fallen from the bookshelf from the scene, it has already fallen over, But the microphone, which is not fixed by anything, has not fallen outside."

"Huh? You are right, this is indeed an abnormal situation."

Police officer Henggou also reacted, and said in a deep voice: "All the locks in this room are locked, and they are locked from the inside. In other words, this is a murder case in a secret room."

After hearing that Professor Hirota was killed, Mrs. Hirota suddenly became emotional and kept asking: "Who killed my husband? Who killed my husband?"

"Madam, please calm down first." Police officer Henggou asked after a few words of comfort, "Can you tell me who is coming to meet your husband tonight?"

Mrs. Hirota pointed to Shiraiwa Maha's Haibara Ai, and replied, "If it's the two of them, there seem to be three or four people here tonight."

At this time, police officer Henggou noticed Hui Yuanai who was operating Professor Hirota's computer in the corner, and asked with a frown, "Brother Baiyan, who is she? How can she tamper with the things at the scene?"

"I'm sorry, Police Officer Henggou, she is a child of a relative of Dr. A Li. Dr. A Li has something to do tonight, so he entrusted me to take care of her, so I brought her along."

After Shiraiwa Maha explained Haibara Ai's identity, he smiled apologetically at police officer Henggou, walked over and hugged Haibara Ai off the computer chair.

When Bai Yanzhenyu picked up Huiyuan Ai, Huiyuan Ai put his arms around Baiyan Zhenyu's neck with his back, then leaned into his ear, and whispered: "Baiyan, there is no porcelain plate here, and all the information in the computer Disappeared."

"Well, I understand." Shiraiwa Maha responded, and then put Hui Yuan Ai down, but did not notice the reddish color of Hui Yuan Ai's ears.

Police officer Henggou didn't bother with the child-like Hui Yuan Ai, and asked Hui Yuan Ai to go to the side to wait for someone to re-survey the scene so as not to miss any important clues.

During this period, Police Officer Henggou asked Mrs. Hirota: "Ma'am, do you know who are the people who met with Mr. Hirota tonight? Also, did Mr. Hirota come out to see them off after the meeting?" ?”

"I'm not at home tonight. The wife next door went to the township meeting, and she just came back not long ago."

After recalling for a moment, Mrs. Hirota added: "By the way, when the wife next door and I were just about to go out, we met the first guest who came here. My husband said it was one of his students. I remember that he seemed to be surnamed Xi arrow."

"Very good, Oiwa, you go and bring that student named Hoshiya here now."

After getting new clues from Mrs. Hirota, police officer Henggou immediately ordered a subordinate named Oiwa to find the student named Hoshiya.

"Yes!" Police Dayan saluted, turned and left the scene.

After Dayan Police left, Officer Henggou continued to ask: "Madam, besides him, do you know the names of other guests?"

Mrs. Hirota shook her head and said apologetically, "Sorry, my husband only told me that there are two or three students who will come to see him today, but I don't know who they are."

Police officer Henggou rubbed his chin, and said to himself with some embarrassment: "So, we have to check all the students of Professor Hirota."

At this moment, Shiraiwa Maha made a new discovery, pointing to the landline phone covered by books, and suggested: "Officer Henggou, the indicator light on the phone has been flashing, there should be a recording left by someone inside, how about Let's listen first, maybe we can find the information of the visitor from inside."

"It makes sense, let's listen to it."

Officer Henggou agreed to Shiraiwa Maha's proposal, and after having his fingerprints collected, he pressed the play button of the recording with his gloves on.

----

"Hi, I'm Shirakura, Professor Hirota, our appointment is tonight, right?"

"I'm Morioka, what time should I go there tonight?"

"Professor, I'm Bai Cang, because I suddenly have something to do tomorrow, I'll go to your place now."

……

"I'm from the insurance company. I want to explain to you about the company's new insurance. I wonder if it's not convenient tonight? Since you're not at home, I'll call you later."

----

There are thirteen recordings on the phone, ten of which are left by the person named Bai Cang, two are left by the person named Morioka, and the last one is left by a salesman of an insurance company. .

After hearing the salesman's message, Haibara Ai, who had been silently observing everyone solving the case, suddenly shrank her pupils, her face immediately lost all color, became extremely pale, and her whole body trembled.