The famous criminal in Conan's world

Unusual long knives, tape recorders, and squeezed bottles......................

Bai Ma Song seemed to have thought of something. He turned his head and looked at the door connecting the living room and the bedroom, and then at the open lattice window.

Also, there was a body that was in a line with the door and the lattice window.

Bai Ma Song called Gao Mushi over.

"Gao Mu, go under this window and see if there is any heavy object like a stone weight with a rubber band on it.

Bai Ma Song pointed to the lattice window of the bedroom and said to Gao Mu.

""Okay, Inspector Hakuba."

Although Takagi Shigeki didn't understand Shiramasatsu's idea, he knew that it was right to follow the big boss Shiramasatsu at this time.

After Shiramasatsu gave Takagi Shigeki instructions, he also walked out of the bedroom with the plastic bottle and came to the corridor again.

He compared the plastic bottle with the blanket on the corridor and found that his guess could be verified.

At this time, Shiramasatsu was just waiting for news from Takagi Shigeki.

Soon, Takagi Shigeki came back with a weight.

It is worth mentioning that the weight is not the usual type. It is more like a slender iron block with a small ring on it and a rubber band tied to it.

"Inspector Hakuba, is this the thing?"

Takagi Wataru asked

"That's right."

Hakuba Song nodded, took the weight from Takagi Wataru, and examined it carefully.

After reading it, Hakuba Song said to Officer Megure,

"Officer Megure, bring them all here. I have solved the mystery of the locked room."

"What?!"

Inspector Megure was surprised. As expected, Brother Hakuba has always been trustworthy.

"OK, I'll get everyone over here right away.".......................................................

Soon after, Inspector Megure led everyone to another suite.

The layout of this suite was exactly the same as the deceased's room. After asking the manager, Hakumasatsu used this room as a demonstration.

At Hakumasatsu's request, Inspector Megure took everyone directly to the bedroom of the suite.

When everyone arrived at the bedroom, they could see that Hakumasatsu used a pillow to act as the deceased for the purpose of demonstration.

At this time, a thirty-centimeter-long knife was also stuck on the pillow.

Seeing that everyone was present, Hakumasatsu began his story.

"Before I talk about this secret room technique, let me sort out the clues for you."

"First, the long knife on the body of the deceased. Second, the plastic bottle with a ring containing the key. Third, the open lattice window. Fourth, the deceased fell between the lattice window and the bedroom door. Fifth, the tape recorder playing screams. Sixth, the one-centimeter carpet in the room. Seventh, the seven-centimeter carpet in the corridor. Eighth, there is a gap under the door of the suite. Ninth, the lights are off in the suite."

Bai Masong bent his fingers and sorted them out to everyone present, and then said

"First, let's talk about the fifth point, the recorder playing the screaming sound. This is very important."

"Have you ever thought about why you were in such a hurry to open the door?"

Bai Masong's question made the manager who opened the door at that time, Hanai, Kimura, and Koshimizu Nanatsuki all lower their heads and think.

"It was because of the screams!" said Nanatsuki Koshimizu.

"It was because of the screams that we felt there was danger inside, so we couldn't wait to ask the manager to help open the door."

"That's right,"

Bai Masong nodded and continued

"This is the murderer's purpose."

Bai Masong turned to the police officers present and asked,

"Everyone, do you remember the murder case in the bathroom a few days ago? At that time, Miss Qingdao Quandai asked Detective Maori to come to her house and used Detective Maori to create the illusion that the door of the bathroom was locked with tape."

"So, this case is also..................."Sato Miwako said thoughtfully

"That’s right, in this case, the murderer also took advantage of this."

Bai Masong confirmed.

"Before you, Koshimizu, opened the door, although this place was locked, it was not a secret room. However, once you opened the door, this place became a secret room."

After listening to Bai Masong's words, Koshimizu Nanatsuki also lowered her head and began to ponder. She was actually very smart and capable. Now she just needed some guidance.

Koshimizu Nanatsuki was thinking, but the incumbent Officer Megure had no time to think.

He fully exerted his ability to make a joke and said impatiently,

"Brother Bai Ma, stop keeping us in suspense and tell us how to do it!"

Bai Ma Song saw this and said nothing more. He took out a rubber band and a weight. The weight was the one Gao Mu brought back.

"The secret room method is like this"

"First, we need a relatively long and elastic rubber band. First, we need to pass the thin weight through the lattice window."

"Then, holding the weight in one hand, use the other hand to pass one end of the rubber band through the grid, then through the small ring on the weight, and circle it around the small ring to make sure they are locked tightly."

"Then pass the rubber band through the small ring through the grid adjacent to the previous grid and pass it out"

"Then, take the other end of the rubber band and pass it through the small ring on the plastic bottle. This time, do not wrap it around, just pass it through directly."

As he spoke, Bai Masong picked up a plastic bottle that he had taken directly from the hotel. It was the same type as the one in the secret room.

"After passing through, pull the rubber bands at both ends together and tie them up, making sure they are tied tightly."

"Next, we just need to stretch the rubber band that has formed a loop, and put it on the long knife that is inserted into the dead body, but don't let the long knife touch it."

���After that, he continued to stretch the rubber band that had passed over the long knife, all the way out of the bedroom door and out of the suite door."

While Bai Masong was talking, he kept pulling the plastic bottle in his hand, and pulled it out of the door.

Following Bai Masong's actions, everyone followed him out.

Because there was a gap in the suite door, the rubber band connected to the plastic bottle could pass through.

Bai Masong waited until everyone came out, then he held the plastic bottle in one hand and closed the suite door with the other.

Secret Room Technique

"Finally, after we closed the door, the plastic bottle was stuck outside the room. We took out the key, locked the door, put the key into the plastic bottle, and took the carpet from the corridor to cover the plastic bottle. Then, everything was done."