"This ...... What's going on? How is this possible?" Hattori exclaimed in horror, "No way, I've already let the fishing line run through the entire double pocket." ”

Wei said lightly: "This is because when the fishing line was passed, Officer Twilight was sitting. ”

"Fei Sang, what do you mean by that?"

"Because as long as you sit, the pocket will be folded, blocking the passage of the key into the pocket, and before the key can actually enter the double pocket inside, the fishing line will be pulled out of the tape, and the victim is about the same size as Officer Twilight, which is even more obvious." ”

"So," Officer Twilight remembered, touching his chin and saying, "I remember when I put my hand in the victim's pocket, the key was indeed in the double pocket. ”

"But ......" Hattori Heiji was a little anxious, and exclaimed, "This is likely to be a coincidence, no, at least one in ten times, right?"

Wei Liang glanced at Hattori Heiji. He said coldly: "Hattori-kun, this is really not like what you said, you should also think of it, this kind of thing is the same a few times you do it, think about it yourself, what direction was the key when it was in the victim's double pocket at the beginning?"

"Direction?" Hattori Heiji was stunned, thought back in a daze, and muttered: "The direction of the key?" Hattori Heiji shuddered violently and exclaimed, "That, that key ......"

"Yes, the key was folded at the time!" Yui said: "Even if the key really runs into the double pocket, it should only be the key ring to go in, and the key can't get in, because the double pocket is too narrow and not long enough! ”

"Is this possible?" Hattori Heiji said in shock, "Fei-san, can this be done? Besides, what about the fishing line I just found from the Japanese-style room." ”

Wei glanced down at the fishing line and said lightly: "In fact, it is precisely because of these fishing lines that I can be sure that your reasoning is wrong. ”

"This ......"

Without waiting for Hattori to ask, Yui showed the white object in his hand to everyone.

Seeing clearly what the only thing for everyone to see, everyone screamed in shock.

"This ...... These are fishing lines???"

"Yes," Yui nodded, and said, "This is what I just walked around the house and found by hand, to be exact, this should be a trap set by the murderer, in order to blame this old gentleman." ”

"Huh?" Hattori Heiji suddenly understood, and shouted: "The real murderer has long planned to frame the old gentleman, so you found the fishing line in many places, in this way, as long as the case is reported, no matter where the old gentleman is, as long as the search and the fishing line is found, this framing will be established." ”

"Exactly!" Yui nodded, relieved.

Therefore, she hates reasoning, and this interlocking explanation is too annoying.

"But," Hattori Heiji shouted again, "the old gentleman just admitted that he killed someone, what's going on?"

"That's because the old gentleman deliberately jumped into this trap! I don't know why. Speaking of this, Wei frowned slightly.

She has always been most annoyed by these bullshit things, but she didn't expect to really run into them.

"But, in that case, isn't this study a perfect secret room?How did the murderer kill someone?, do you want to say that the victim committed suicide?" asked Hattori Heiji.

Hearing Hattori Heiji ask, Yui relaxed, because this is her area of expertise.

"How could it be! The victim did not commit suicide, and the murderer also left clues to the real criminal methods," Wei said softly: "You all know, I'm not good at reasoning, so I only look at what I want to see, since the key just now has no trap, then, the murder weapon is more strange, it's still the question I just asked, you say, why didn't the murderer take this murder weapon?"

"This ......" Hattori Heiji was stunned for a moment, he felt that something had been overlooked by him.

Wei smiled slightly, raised a finger, and replied: "There is only one reason, that is, she can't take it away!"

"Can't take it with you?" Hattori was stunned, he had already vaguely thought of a possibility.

Yui looked up at the others and continued, "I remember Mr. Butler once said that Mr. Tsujimura is very fond of classical music, but Hattori-kun, do you remember what kind of music was put on when we came into the study?"

"It's an opera. "Heiji Hattori remembers it very well.

"Yes, it's an opera," Yui walked over to the desk, knocked on the desk, and said, "There is still a stack of books on the desk, blocking the front of the victim, why is that?"

Wei looked up at everyone and said expressionlessly: "It's very simple, this is because the murderer is deliberately covering up, the time when the opera is played is just the time when the murderer stabbed the victim with a poison needle, the opera is to attract our attention, and at the same time to cover up the screams of the victim when he is poisoned, and the book is to cover the painful expression that the victim may have when he is stabbed." ”

"This ...... How is this possible?" Hattori was stunned.

Wei glanced at Hattori Heiji lightly and said, "How could it not be? If this is not the case, how could the murderer not have time to take the poison needle away, after all, all of us were next to us at the time, and when the victim fell, everyone came over, and he didn't have that time and opportunity!"

"That's ......" Hattori Heiji understood, turning his head to look at someone.

That's the white-faced Tsujimura Koe!!

"Madame killed the master?"

"No, it can't be!"

Mori Kogoro said, "Yui, in this case, the victim was still alive at the time. ”

Yui exhaled and said, "Yes, Mrs. Tsujimura should have used some medicine to make Mr. Tsujimura fall asleep and put Mr. Tsujimura in that position, and then she stabbed Mr. Tsujimura to death with a poisonous needle while pretending to call Mr. Tsujimura! Moreover, if the sleeping pills were a little stronger, and the poison needles were highly poisonous, the poisoning would only be a moment's time, and even Mr. Tsujimura would not wake up at all. ”

"Wait, Yui-chan," Officer Twilight asked, "Wouldn't that be ...... if that sleeping pill was examined from the corpse?"

"No, it won't!" Hattori Heiji finally recovered at this time, took a deep breath, and said: "Because we have always believed that the deceased died before we entered the house, so, even if the test is in addition to sleeping pills, it will only be thought that the murderer made him take sleeping pills in advance in order to prevent the deceased from resisting, that is, the murderer deliberately found the detective here, taking advantage of the blind spot that no one will kill in front of them, so as to take himself out and carry out a psychological secret room killing, right?" Fei Sang?"

"Yes. Yui nodded his head.

Hattori Heiji turned his head to look at Yui and asked, "So, what about the evidence? Fei-san? You entered the door with us, don't forget that Mrs. Tsujimura entered the door at the same time as us! We didn't see her take out the poison needle!"

"Yes, Mrs. Tsujimura didn't take out the poison needle at all when she entered the door," Yui bent down and picked up the key with the keyring from the ground, opened the keyring lightly, and said, "But don't forget that Mrs. Tsujimura also took out something, didn't she?"

Yui's words had no beginning or end, which made others a little confused.

However, Heiji Hattori understood, and Officer Twilight, who was also experienced in handling cases, also understood.

"Keys, keyrings?"

They all looked at Koe Tsujimura.

Wei played with the keyring a few times, raised his hand, looked at Tsujimura Gongjiang, whose face was already white, and said indifferently: "Mrs. Tsujimura, I remember that your keyring is also the same as this one, right?"

Officer Twilight walked over and said, "Ma'am, can you show me your keyring?"

Mrs. Tsujimura lowered her head, but still handed over her handbag.

Officer Twilight searches inside, and soon finds the key, and immediately opens the keyring, which surprises Officer Twilight by what it looks like when it is opened.

"This ...... What is this groove?"

Right in the middle of the keyring, there's just a small long groove!

At that time, Mrs. Tsujimura took out the poison needle when she opened the door with the key, and then poisoned Mr. Tsujimura while our attention was on the opera, so this key ring with grooves is the simplest but most favorable evidence to prove that Mrs. Tsujimura is the murderer!"

"But why?" Officer Twilight wondered, "Why did Mrs. Tsujimura kill her husband?"

Yui slowly walked to the bookshelf next to him and took a photo to show to everyone. , said: "The reason, it should be this, right?"

"Hmm, isn't this a photo of Mrs. Tsujimura when she was young?" everyone looked over in confusion and saw that it was an old photo of Mrs. Tsujimura twenty years ago.

Wei pointed and said, "Don't you think this photo is a little familiar?"

"Familiar?" everyone was stunned.

Officer Twilight took the photo, and the others gathered around.

Heiji Hattori suddenly exclaimed, "Ah, Mrs. Tsujimura and Miss Sachiko Katsuragi seem to be ah!"

"So, it's really similar!" Mori Kogoro also found out.

"Huh?" Sachiko Katsuragi was directly stunned and hurriedly walked over.

"How is this possible?" the rest of the Tsujimura family also gathered around.

"It's true, you see, it's almost exactly the same except for the hair color!" said Heiji Hattori.

Before anyone else could say anything, he heard Tsujimura Kimie say, "Of course we are very similar! Because I am Sachiko's mother!"

"What did you say?" everyone was dumbfounded.

"How-how?" Sachiko Katsuragi was also completely stunned.

Only raised eyebrows, that's what she always found strange!

Even after 20 years, the connection between mother and daughter, who look very similar, has never disappeared!