Early the next morning, Jiang Wen took Gray Yuan Ai to the Maori office first, picked up Conan in the car, and of course brought Dr. Asa along the way.

The four of them went to Professor Hirota's house according to the address given by Akemi Miyano yesterday.

"Hello, we are the ones who made an appointment with Professor Hirota last night to come to his house today and pick up some things." After Jiao Wen and the others arrived at the location, they said to Professor Hirota's wife who came to open the door.

"It's Mr. Jiao Wen, right, I've heard it, my husband mentioned you, four of you, please come in." Hongtian Dengzhizi said to Jiao Wen with a smile.

"We didn't disturb us so early, Professor Hirota's rest." Jiao Wen followed Hongtian Dengzhizi inside and asked her.

"Don't worry, my husband drank some wine yesterday and slept all night, and he should have woken up." Noboru Hongtian replied.

Then the group came to Professor Hirota's study, and Noboriko Hongtian knocked on the door, "Old man? Old man? ”

"Does Professor Hirota usually sleep here?" Jiao Wen asked at her.

"Ah, no, after drinking yesterday, he came back to the rental house to do some errands, and then when I came to knock on the door, there was no response, I think maybe he fell asleep, but I didn't expect him to wake up yet." Noboru Hongtian explained.

Then he turned around and twisted the handle again, and found that the door was still locked, and muttered, "It's strange, why is the door still locked, and it should have been up for so long." ”

At this moment, Conan jumped up and jumped hard, grabbed the window frame above the window, put his head close to the window, and looked in from the outside.

Inside the room, Professor Hirota was lying in a pool of blood, and his body was crushed by a lot of books, Conan quickly jumped down and asked Noboru Hongtian, "Is there a spare key here?" ”

"We don't have spare keys, and doors are generally unlocked." Hongtian Dengzhizi was stunned for a moment and said.

"What's going on? Conan. Jiao Wen also hurriedly asked.

"I saw Professor Hirota lying inside, bleeding from his face." Conan said to Jiao Wen very seriously.

Listening to his words, Jiao Wen frowned and thought in his heart, the time is not quite right, shouldn't Professor Hirota hang up on the night when Gray Plains was mourning Conan, it was okay to call yesterday, I thought that this plot had been slapped and disappeared by butterfly wings.

"Conan, get out of the way!" Jiao Wen said a word to Conan, and then gathered his strength, kicked on the door, and directly kicked the door lock open.

A few people walked in and found that Professor Hirota was indeed lying on the ground with his eyes open, as Conan had seen, and it seemed that he was out of breath.

"Dr. Asasa, please hurry up and call the police!" Jiao Wen threw a word at Dr. Asasa and ran to the side of the corpse to investigate.

I remember that the cause of the professor's death in the original plot seemed to be that he was killed by one of his students hitting him on the head with something, and Jiao Wen thought about looking for bloodstained items next to the corpse, and then soon found a trophy that had fallen aside.

Soon the police in charge of the area also arrived, and the medical examiner began to perform an autopsy on the body.

"Officer, according to all aspects of the corpse, it is basically judged that the time of death was about half past eight last night." The medical examiner said to the officer in charge.

"I see, I'm sorry for you." Officer Henggou listened, then circled the room twice, and muttered to himself, "It looks like this must have been an accident." ”

"Accident?" Dr. Asasa heard him and asked.

"Yes, I don't know yet, but there's a high chance of accidental death." Officer Henggou said and picked it up, the trophy that Jiao Wen found at the beginning, "It is estimated that his death may have been caused by this ornament, maybe when he fell, the back of his head accidentally touched this top, and judging from the books scattered next to him, Hirota was already trying to take something on the bookshelf, accidentally fell down with the bookshelf, and then accidentally bumped into this ornament." ”

"Officer, don't jump to conclusions." When Jiao Wen was following Conan, he saw something wrong.

"Huh? Did you find anything else? You must know that the doors and windows of this room are tightly locked, and there is no spare key, as for the original key, it is pressed under a book. Officer Henggou asked Jiao Wen.

"Officer, please look here." Jiao Wen pointed to the landline on the ground and said, "Judging from this thing, he may have been killed." ”

"Huh?" Officer Henggou was confused, not knowing what Jiao Wen was talking about.

"The situation in the whole room looks like an accident, yes, but if you look at the phone yourself, it turned over and fell on the floor, but its receiver didn't, it fell down together, and from this place, it looks like someone has put it here, although a book is placed on it to cover up, but it is obvious from this point of view, this room should have been deliberately messed up." Jiao Wen pointed to the phone and analyzed.

"If that's really what you say, then this should be, a kind of murder in a closed room!" Officer Henggou stood up from the ground and said very seriously.

"Murder in a closed room?!" Hongtian Dengzhizi's whole face changed, if it was an accident, she could barely accept it, after all, her husband was indeed about to arrive, the age when it was time to leave, but killing people was different, who would be so ruthless to an old man who was close to old age!

"That's right, all the locks in this room are locked, and they're locked from the inside." Officer Henggou said, looking around at the people present.

"Who is it! Who killed my sir. Hongtian Noboru Shiko was so excited that she asked Officer Yokogou.

"Please calm down, may I ask if there were any suspicious people who came here last night and saw your husband." Now that there is a possibility that he killed, Officer Henggou also began to ask who might have come over at the time of the crime.

"Last night, it was supposed to be three people here." Hongtian Noboru thought for a moment and said to Officer Yokogou.

"Then why did you guys come to Professor Hirota this morning?" Officer Yokogou asked, turning to Dr. Asa and Gawen.

"That's right, a friend of mine accidentally sent the disk to Professor Hirota, and we made an appointment to pick it up today." Dr. Asasa explained to Officer Yokomizo.

"All the data on the disk is gone, and the data on the computer is gone." Gray Yuan said to the others as he stepped on his chair and used the computer.

"Who is this little girl?" Officer Yokozo asked Dr. Asasa.

"I'm sorry, I'm sorry, she's a relative of mine." Jiao Wen walked to the side of the chair, hugged Gray Yuan and said.

Looking at Jiao Wen's face, Officer Henggou blinked, "I seem to have seen you somewhere." ”

"Maybe it's at the police station, I'm Officer Twilight's subordinate, my name is Jiao Wen." Jiao Wen stretched out his hand and said.

"Oh~ I remember, you've solved several big cases." Officer Henggou suddenly realized, shook his hand and said.

"It's just luck, Officer Henggou, we shouldn't have anything to do with this case, first of all, we only came in the morning, and secondly, no one should be stupid enough to take a child to the scene of their own crime." Jiao Wen argued.

"Of course I do, but have you found any other clues?" Officer Henggou's attitude suddenly became very good.

"Uh... I think we should check the people in the phone voice first. Jiao Wen pointed to the landline with the lights on and said.

"Okay, then let's listen to the phone call first." Officer Yokogou said as he crouched down and pressed the play button.

"I think they may have done it, maybe they found the drug information, and the missing record coincided with the record time of the thing I sent to my sister, so they killed and took the property." Gray Yuan said leaning into Jiao Wen's ear.

"I see, now that you've escaped from the organization, they must have thought that you would come here to retrieve that information, so let's strike first." Conan said from the side.

"Can you two not be so sensitive? It's a very simple truth, if it was really their case, there would be no need to make such a hassle and make a secret room murder. Jiao Wen rolled his eyes beside him and said, the two people in front of him were about to become frightened birds, "Let's listen to the recording on the phone first." ”

There are 13 recordings in the landline phone, including Mr. Shirakura, Mr. Morioka, and the last one is an insurance sales call.

"The last call, it should have been that person, right?" Conan approached Gray Plains and whispered.

"That's right, although the machine has changed the sound quality of the voice a little, but this tone and the voice in this general direction are indeed that person, vodka." Gray Yuan said with a calm face.

Jiao Wen stood to the side and touched his chin, also thinking about things, this vodka he remembered was taken away by the monster Gin at the time, and now his recording has appeared here again, so the question is, why didn't Gin kill this vodka? It can't be because of comradeship, right? Let's not talk about whether the believers of the old rulers have this thing, even the gin that turned out to be a killer should not have such feelings.

"Could it be that this case is what those people did!" Dr. Asasa was also aware of the problem with the last voice, and walked up to Conan's side and whispered to him.

"Isn't that right? It is unlikely that they were responsible for this case, and if they did come here to get the disks, they would not have left their voices in the answering machine on the spot. Conan came to his senses and said.

"That's right, this voice may just be a way for them to make sure that Professor Hirota is not there, but they should be in a hurry by now, and if they can't get the materials back, it will be a big trouble." Gray Yuan continued beside him.

"Gray Plains, Conan, you two be careful when you go out, maybe that group of people is around right now." Jiao Wen said to the two of them.

At the same time, he also has to prepare, but why is vodka still alive and well, but judging from the current situation, it is estimated that he is alive and well for a long time, and it will be a big trouble if he fights around here, and there are people everywhere around here.

After a while, the three people who had come to see Professor Hirota yesterday were called by Noboru Hirota one by one.

When they arrived, they were surprised to learn about Professor Hirota's death.

"You say Professor Hirota is dead?! How is this possible! Morioka said in disbelief.

"yes, he was fine not long ago." Mr. Hosoori also said that he had come here when Noboru Hongda and the wife of the next family went to the township meeting.

"I remember passing by Mrs. Hirota, and the person who came here was you, Mr. Hosoori." Officer Yokogou looked at the man and said.

"Yes, because my daughter is going to apply for Nanyang University this time, I came here to ask the professor to help my daughter write a letter of recommendation, but I saw that the professor seemed to have drunk a lot of wine, so I dispelled my mind and went back first." Mr. Hosoori explained.

"Did the professor really drink last night?" Officer Yokozo asked to Hongtian Noboru Shiko.

"Yes, he drank it in the evening." Noboru Hongtian nodded and said.

"So, Mr. Morioka, listening to your statement in the message on the answering machine, it seems that you have already made an appointment with Professor Hirota, right?" Officer Henggou continued to ask the next person.

"Yes, I made an appointment with him to play chess together, I and he are chess friends, it was the professor who invited me to play chess last night, you see on the floor, that is the chess pieces, we usually play chess in this room, if because I haven't made an appointment to start at a certain time, I only called twice, but both times it was transferred to the recording, so I came over to take a look." Mr. Morioka said, pointing to the chess pieces on the ground.

"So you were here last night?" Officer Henggou then asked.

"Yes, when I came, it was about half past nine, when the door was not locked, but I rang the doorbell several times and no one came out, I wondered if he forgot the agreement and fell asleep, and then came into the house by himself, but when I arrived at the study, no one answered when I knocked on the door, and the door of the study was locked again, in this case, I had to go back." Mr. Morioka explained.

"I see, but what about you? Mr. Shirakura, why are you making multiple phone calls in a row? Officer Yokogou said as he looked at the major suspect in the case, Shirakura.

A person who left a recording of ten phone calls in one breath either had a brain pump or had ulterior motives.