The famous criminal in the world of Conan

“But…”

Officer Megure still looked confused and asked,

"Then how does this plastic bottle get in?"

Bai Masong didn't say much, and said to the manager calmly,

"Please open the door of the room."

"Ok."

The manager replied.

The manager took out the key, inserted it into the door lock, and turned it.

This key is the real key. For convenience, the key just now was the key for other doors. Although the keys are different, their sizes are the same.

"Crack!"

The manager opened the door and heard a "swish" sound. The plastic bottle that was previously stuck in the door was pulled back in an instant by the powerful elastic energy of the rubber band.

The plastic bottle was pulled back so fast that no one could see clearly!

Only a flash of white light was seen, and the plastic bottle disappeared.

Inspector Megure was stunned. He quickly ran into the bedroom, and everyone who was anxious to see the result followed him.

When they entered the bedroom, they saw a plastic bottle containing a key, lying quietly next to the pillow with a long knife stuck in it.

Bai Masong already knew the result, so he walked over calmly.

At this moment, everyone was looking at Baimasong with admiration.

This is especially true for Nanatsuki Koshimizu. She had already thought of the complete technique when Baibamatsu was halfway through his speech.

However, the more she thought about it, the more she felt that this technique was extremely ingenious, and the more she admired Bai Masong.

If it were her, she would probably be able to figure it out, but not so quickly.

At this time, I only heard Bai Masong say lightly,

"The first clue is the long knife found on the victim. This long knife was responsible for cutting the rubber band that formed a loop, causing the plastic bottle to fall."

"The second clue is a plastic bottle with a ring containing a key. This is to increase the difficulty of the locked room. At the same time, the ring can be used to return the plastic bottle."

"The third clue, the open lattice window, is to allow the rubber band and the weight to pass through so that they can leave the room with the clue."

"The fourth clue is that the deceased fell between the lattice window and the bedroom door. This is to ensure that the rubber band will not be cut by the long knife when it is stretched in the middle."

"The fifth clue is that the recorder playing the scream is to attract everyone's attention and let everyone open the door. At the same time, the scream can also cover up the sound of the plastic bottle rubbing against the blanket and the sound of the weight falling to the ground."

"The sixth clue is that the one centimeter carpet in the room is to reduce the friction sound of the plastic bottles, making it difficult for you who come in to notice it."

"The seventh clue is that the seven-centimeter carpet in the corridor can cover the plastic bottle hidden outside the door."

"The eighth clue is that there is a gap under the door of the suite, which allows the rubber band to pass through."

"Ninth, the lights in the suite are turned off. The lights in the corridor are on, but the lights in the room are turned off so that people cannot see the movement of plastic bottles when they first enter the room."

"At the same time, this is also the reason why the murderer chose to commit the crime in the dark."

"Because during the day, the house is also lit, the movement of the plastic bottle cannot be concealed, and his trick will be seen through at a glance!"

Bai Masong analyzed the nine clues he had summarized one by one against the locked room techniques, and everyone nodded in agreement.

After this explanation, everyone has basically fully understood this technique.

At this time, Inspector Megure asked again.

"Brother Bai Ma, we have cracked the secret room, but who is the murderer?"

In response to Inspector Megure's question, Hakubamatsu smiled and looked at the three people on the same floor who were listed as suspects: Hanai, Kimura, and Koshimizu Nanatsuki.

"The murderer must ensure that the door of President Murakami's room is opened tonight, but screaming is not necessarily a guarantee."

"At this time, he must call the hotel front desk and ask them to open the door."

"So, the murderer is——Mr. Hanai."

"brush--"

Everyone looked towards Hanai.

At this time, Hanai's face was completely pale. He stammered and tried to explain.

"No, it's not me, you, what proof do you have................................"

"Evidence, huh?"

Bai Masong interrupted coldly,

"As for the evidence, the rubber band is very thin. Passing it through the grid and tying the knot are delicate tasks. You can't do that with gloves on."

"Even if you remember to wipe them off afterwards, the lattice window is so small that you can't wipe off the weights on the outside. Your fingerprints will definitely be on them."

"How about it, do you want to test it?"

When Bai Masong said that he didn't bring gloves, he was already in despair.

Because he really didn't wear gloves, and he wasn't that careful. Not to mention the fingerprints on the rubber band outside, he didn't even wipe them off, let alone the fingerprints on the rubber band outside.

Finally, Hua Jing couldn't bear it anymore, he slid down, burst into tears, knelt down and confessed his guilt.

"I am the secretary of President Murakami. Originally, I was loyal to the president, but, but the president...................................................................................... (a thousand words omitted here, because the author is too lazy to think of the motive for the crime.)"

Bai Masong and the others listened to the murderer's complaints in silence. When Hanai finished speaking, Officer Megure also said to Takagi Wataru,

"Takagi, handcuff him and take him away."

"Yes."

Takagi Wataru immediately came over and handcuffed Hanai.

"Um, officer, officer!"

After Hanai was handcuffed, he suddenly started yelling at Baimasong.

Bai Masong's eyes turned cold, and he walked over, clenching his right fist slightly.

"Why, you want to resist?"

Hanai felt Bai Masong's murderous aura and shook his head hurriedly.

"No, no, what I meant is that this secret room technique was not invented by me. Someone told me about it!"

"what?!"

Upon hearing this, Officer Megure asked hurriedly,

"Are you telling the truth? Tell me, who told you that?"

Hanai hesitated for a moment and did not answer, but asked,

"Officer, can I reduce your sentence if I say this?"

"You've surrendered yourself."

Bai Masong said coldly.

Hua Jing no longer hesitated and said directly,

"I wanted to kill the president, so I asked someone to consult, and finally found someone called a criminal planner."

Criminal planner?

Hakuba Song and Koshimizu Nanatsuki looked at each other.