The famous criminal in the world of Conan

What are those piled-up books trying to hide?

What is the opera played on the record meant to cover up?

Bai Masong has no impression of this case.

He did have an impression of Hattori Heiji, but as far as he could remember, the first time he saw Hattori Heiji appear was in an episode in Osaka.

Although he did not remember this case, the clues at the scene seemed to allow him to vaguely touch the truth.

"Sato," Bai Masong suddenly said, "You come and analyze these people."

According to Bai Masong's reasoning, this case should also be considered to be in line with his "scientific skills".

"Yes!"

Sato Miwako quickly agreed.

Just then, a spirited voice came from outside the door.

"no need!"

Everyone turned their heads to look over.

I saw the high school detective, Hattori Heiji, who had just left for a while, and he came back again.

"I already know the method of this secret room!"

Hattori Heiji said.

"What!?" Officer Megure exclaimed, "Brother Hattori, do you really know the locked room technique?"

As he spoke, Inspector Megure glanced briefly in the direction of Hakuba Matsu.

Inspector Megure is a well-informed person. He has experienced three detectives, Kudo Yusaku, Kudo Shinichi, and Mori Kogoro, as well as the top police officer Hakuba Matsu. In his opinion, his brother Hakuba is the most capable one.

But now, Brother Hakuba is still thinking, has this Hattori Heiji already solved the mystery?

Hakubamatsu glanced at Hattori Heiji who was in high spirits, and wanted to hear what he had to say, so he looked back at Inspector Megure, motioning him to take a look first.

On the other hand, Conan, who was suffering from a cold and white wine, also wanted to go out to solve the case, but when he thought that there was Bai Basong, who could always beat him, he felt at ease to recuperate.

After hearing the question raised by Inspector Megure, Hattori Heiji said with confidence.

"Officer Megure, your body size is similar to that of the deceased. Could you please be the deceased for a moment?"

"No problem," said Officer Megure.

"boom!"

Just as Hattori Heiji was preparing to demonstrate, Conan finally couldn't bear it anymore and fell to the ground.

"Conan!"

Xiaolan immediately picked him up and called out with concern.

"This little brother must have a fever, why don't you let him go to my room and rest for a while."

Takayoshi Tsujimura on the side said kindly.

"Well, okay, thank you so much Mr. Guishan." Xiaolan thanked.

"It's okay. My room is on the first floor. You can take your little brother there."

"Ok."

After saying that, Xiaolan took Conan downstairs and went to Takayoshi Tsujimura's room on the first floor.

"Ahem, Brother Hattori, now please continue with your demonstration."

Inspector Megure waited until Xiaolan carried Conan away and continued.

"Okay," Hattori Heiji said, "At the time of the crime, all the windows of this room were locked from the inside, and the only door that could be used for entry and exit was also locked with a key."

"This creates a secret room with no gaps. But this seemingly completely secret room still has a gap."

"Gap?" everyone asked in confusion.

"That's right, it's the gap under the door!" Hattori Heiji pointed at the gap and said with a smile.

"You're not saying that the murderer threw the key into the victim's pocket through this gap?" Kogoro Mouri looked doubtful.

Faced with doubts, Hattori Heiji remained calm.

"You're right. The murderer threw the key into the victim's pocket through the gap. All he needs is tape and the fishing line I just found to make it happen!"

As he spoke, Hattori Heiji took out a coil of fishing line from his pocket, then walked to the side of Inspector Megure, took out a needle, and gestured to prick Inspector Megure.

"The murderer first stabbed the victim's neck with an iron needle soaked in poison, killed him, and then found the victim's key in his pocket."

"Then, take out the fishing line, tie the iron needle on one end of the fishing line, and stick the other end to the tape on the keychain to secure it."

"Then the end of the needle was passed through the deceased's trouser pocket, and the deceased was placed as we saw at the beginning."

After Hattori Heiji finished saying these words, Inspector Megure was also arranged into the same state as when Tsujimura Isao died. Then, Hattori Heiji held the needle end of the fishing line in one hand and the key chain end in the other, stretched them out of the door.

"After that, we just need to hold both ends of the fishing line and walk out of the door to pull the fishing line out of the door through the gap. Then, we can lock the door with the key and pull the fishing line to pull the key in."

As he spoke, Hattori Heiji pulled one end of the fishing line, and the key was slowly, little by little, pulled in from under the door as he spoke, crawled across the carpet in the study, climbed onto Tsujimura Isao's desk, and finally, fell into Inspector Megure's pocket.

When they saw that the key really went into Inspector Megure's pocket, both Inspector Megure and Kogoro Mouri were shocked.

"Finally, with a strong pull, the stuck fishing line will separate from the keychain, and the key will remain inside. Then the fishing line can be rolled up and the evidence will disappear."

Hattori Heiji put an end to his reasoning with words and actions.

After saying that, a confident and complacent light flashed in his eyes, and he thought to himself, I am still more skilled in this competition, and this time, I win!

After everyone heard this, they all fell silent. Almost everyone was thinking in their hearts that he was worthy of being the son of the chief of the Osaka Prefectural Police Department and a famous high school detective in Kansai. His reputation was well-deserved.

Of course, this is only almost...

Bai Masong had no such thoughts at all. He continued to ask Sato Miwako as if nothing had happened.

"Sato, who do you think is most likely the murderer?"

"Ah?"

When Sato Miwako heard Hakuba Matsu suddenly calling her, she hesitated for a moment. Wasn't the case solved by Hattori Heiji?

"Sato!" Bai Masong said again.

"Oh, yes!" Miwako Sato answered loudly.

"Let me think about it. Judging from the alibi, it should be......"

"Hey, two officers," Hattori Heiji said with a little dissatisfaction, "Don't bother you to analyze, I have already deduced the real culprit."

Bai Masong shook his head slightly and spoke in his cold, emotionless voice.

"You were going in the wrong direction from the beginning, let alone trying to figure out the real culprit."