Ke Xue: I got two Kaleidoscopes at the beginning

Maori Kogoro nodded and continued to explain his reasoning. "Yes, the criminal took advantage of the train entering the tunnel. If he could call Mr. Murohashi before the train entered the tunnel and then suddenly go over, even if he was discovered, he could use the excuse of a bad signal. That way, Mr. Murohashi wouldn't suspect the criminal's true intentions."

Noto Taisaku frowned and raised his question: "But what exactly did the criminal want to discuss with Mr. Murohashi?"

Maori Kogoro replied, "They are talking about the mystery puzzle event held on the mysterious train. The criminal used fake instruction cards to let Mr. Murohashi play the victim, and he played the criminal."

He continued, "Then, the criminals tricked my daughter into believing they had been chosen as accomplices and were asked to cooperate in solving the mystery of the missing body. Naturally, they caused my daughter and Mr. Murohashi to switch rooms."

Maori Kogoro paused, then continued, "This first-class carriage, Room B, was originally reserved by Mr. Murohashi, and the fake instruction card was prepared by the criminal to deal with emergencies."

"For safety reasons, the prisoner even had three children play detectives. So, whichever child playing detective goes to check Room B in Carriage 7, my daughter and the others will have to stay there for the time being."

"But what the criminal didn't expect was that his plan was soon exposed. My daughter and others planned to return to Room B of the first-class carriage, the scene of the murder," said Kogoro Mouri.

But Conan behind him also felt a little dry in the mouth.

"Here you go." Ye Yu beside him considerately handed him a glass of Snow King lemonade.

Noto Taisaku frowned, looking confused: "I know that the criminal used the pretext of a reasoning game to get Mr. Murohashi to go to Room B. But how did the criminal leave?" His voice revealed curiosity and confusion about the details of the case.

Mari Idenami then raised her own question: "Yes, if the criminal entered Room B with Mr. Murohashi, and then killed Murohashi and left, then the conductor should have been able to see the murderer at the door of Room A, right?" There was a hint of doubt in her words.

Anton Yu interrupted, "But the train captain said he saw a strange man peeking through the door, so the criminal must be that person, right?"

Debomari asked, "Which door is it?"

The conductor thought for a moment and replied, "It's the door at the end of the corridor. I saw a strange man in front of the door of Room E. I think it should be Room A where Mr. Noto is?" There was a hint of uncertainty in his voice, as if he was trying hard to recall the situation at that time.

When Noto Taisaku heard this, he immediately retorted: "Hey, hey, hey, you're going too far!" There was obvious dissatisfaction in his voice, and he was obviously displeased with the driver's accusation.

At this moment, Kogoro Mouri's voice suddenly rang out: "It's delicious!" His loud voice made everyone turn their heads to look at him.

Conan quickly continued in the voice of Mouri Kogoro: "Ah! No, that... let Ye Yu tell you next. I told him the truth of the matter." After that, Conan continued to drink the lemonade in his hand, as if nothing had happened just now.

No, brother, I'm trying to empathize with you, but you're trying to play tricks on me? You're repaying kindness with enmity, aren't you?

But even though Ye Yu thought so in his heart, the people around him all turned their eyes to him.

Ye Yu shook his head, looking somewhat helpless: "Ah, ah, there's really nothing I can do. I do know the figure of that suspicious person, but it wasn't Uncle Maori who told me, I discovered it myself!" He puffed his lips, obviously disagreeing with Conan's statement

"Okay, okay, please continue." Xiao Ai comforted her from the side.

Ye Yu cleared his throat, breaking the silence at the scene. His voice stunned everyone: "Ahem, that suspicious figure is actually you, Mr. Captain." His words exploded in the crowd like a bomb.

The conductor was bewildered, his voice filled with obvious confusion and uneasiness. "Huh?! You said I'm the suspicious person? Am I the criminal?"

Toru Amuro quickly understood what Ye Yu meant. He took over the conversation in a calm tone: "No, that's not it. Mr. Captain, what you saw at that time was the door of Room E and yourself standing in front of the door. In other words - a mirror, right?" His words made the captain feel a little relieved.

Ye Yu nodded and continued to explain, "That's right. The prisoner had covered the inside of the door to his room with mirrors. When the conductor was called to the door of Room E by Miss Izumi, the prisoner opened the mirrored door to prevent anyone from seeing him coming out of Room B."

Izumi frowned and continued to ask, "But if the criminal was in Room B at the time, how could he open the door of his room?" There was a hint of confusion in her voice.

Ye Yu smiled slightly. "It's very simple. Of course, he uses a versatile fishing line to tie the handle of the door and then passes it through the railings of the corridor window. He just needs to pull the fishing line to Room B, calculate the time and pull the fishing line, and the door will be opened."

He paused, then continued, "That's right. If you were to use this technique, the mirror would be exposed if it was too far away or too close. So, of the five rooms on the train, A, B, C, D, and E, only you, Mr. Anton, who's in room C, right in the middle, can pull this off."

"Mirror...mirror, right? Then tell me, how on earth am I supposed to move this huge mirror that can cover the entire door into the car?" There was a hint of panic in Anton Yu's voice.

"Isn't the answer obvious? It's the painting that the customer entrusted you to authenticate. As long as you put about three mirrors between the canvases of the painting, and then lay them down, wouldn't they just cover the entire door?" Ye Yu leaned against the car easily and continued.

Xiao Ai nodded and added, "Yes, that painting is indeed quite heavy."

"No... no, the frame of that painting is coated with a thick layer of gold, that's why..." Anton Yu wanted to argue, but Amuro Toru behind him didn't give him the chance.

"No, the frame is made of gilded wood, but it's only one layer. The real heavy part is the painting. Inside, there are three mirrors, just as Ye Yu said. And one of the mirrors is even deliberately painted the same color as the door."