After the preliminary investigation of the scene, they went to room 2101, where Jiang Yuanshi's man stayed, and found that the door was covered with a metal lock from the inside and could not be entered from the outside.

Officer Henggou asked someone to bring a cutting tool and cut off the metal latch. Then they entered Jiang Yuanshi's man's room.

On the floor at the entrance of the room, the clothes worn by Jiang Yuanshi's man during dinner in the restaurant at night are discarded, and there is a room card of room 2101 next to it. In other aspects, it is the same as the original layout of the room, without any abnormality.

"The French window on the balcony is open. Below is the bronze statue of Mr. Jiang Yuan where he fell."

Officer Henggou went to the balcony and looked. He speculated, "it seems that Mr. Jiang Yuan fell from here."

"Look over there. His gloves are still clamped on the railing. I don't think this case is necessarily the murder they think. It may also be a simple accident."

"I guess he might want to dress like this and jump off the balcony to scare the contestants living in the downstairs room. As a result, he accidentally fell down because he drank too much at night, thus losing his life."

Maori Kogoro came over, pointed to the white gloves swinging in the wind on the railing and said his reasoning.

"Uncle, you're not right."

Hearing Maori Kogoro's confused reasoning, Bai yanzhenyu shook his head and retorted: "this is the 21st floor. Even if Jiang Yuanshi's man is brave, he won't turn over the balcony without taking any protective measures. Besides, even if he is ready to scare people and doesn't bring a room card, how will he return to the room later?"

"Well, that's what I said..." Maori Kogoro looked stiff and obviously realized that the reasoning just now was too subjective.

Officer Henggou looked at Bai Yan Zhenyu and asked in some doubt, "well... What do you mean by the contestant?"

"Well, we joined a detective tour group. As long as we find the sponsor code named night Baron, we can stay here for free."

After explaining the content of the activity, Bai yanzhenyu looked at the other contestants gathered and concluded: "the real murderer is among the members of our tour group, and the most suspected one is the real night baron."

"In that case, we must ask all members of the tour group about some information, such as where they were at 10 p.m. when the crime was committed, and who can prove it..."

After learning about the event, police officer Henggou sent someone to borrow a room from Izu hotel as an inquiry room, called the members of the detective tour group in turn for questioning, and asked them to return to their respective rooms after questioning.

Qian Tiancong, the first one to be questioned, said that he and Xiao Lan Conan enjoyed the night scene at the prospect platform and didn't leave the prospect platform until more than 10 o'clock. However, because he was the one who watched the watch at that time, it was possible to deliberately mislead the time, so we can't rule out his suspicion for the time being;

Xiuzi shangtiao and xiaowulang Maori have been drinking in the bar on the second floor, but during this period, xiaowulang Maori got drunk and could not prove whether Xiuzi shangtiao had left the bar;

The old man and the housekeeper of Jincheng just stayed in the open-air restaurant below. However, due to the chaos at that time, no witnesses could be found to testify for them;

Shiro imano, the data man, stayed alone in his room from 9:45 to more than 10 o'clock, reading the e-mail sent to him with his laptop, and no one could prove it for him;

Akiko Sasayama said that because he was angry with his fiance, he locked the door and watched the video tape in the room. Similarly, no one could prove it.

As everyone had doubts and needed further investigation, police officer Henggou and Maori xiaowulang went to look for relevant clues.

After Akiko Sasaki, who was last in line, finished the inquiry, Bai yanzhenyu, Conan and Xiaolan were also asked by police officer Henggou to return to the room, so the four took the elevator back to the 19th floor where the room was located.

When the elevator reached the 19th floor and opened the door again, Bai yanzhenyu and others were surprised to find a man dressed as the Duke of the dark night watching several people in the corridor.

"Duke of the night!"

"Be careful!"

As soon as Baiyan Zhenyu and Xiaolan's complexion changed, they immediately blocked Conan and Akiko sasama from attacking them.

The dark night Duke's eyes behind the mask flickered slightly. Instead of launching an attack, he ran to the stairs of the survival passage.

"Don't try to escape."

Baiyan Zhenyu won't miss the opportunity to catch the murderer directly. He suddenly broke out at an amazing speed and soon caught up with the Duke of dark night and attacked him.

The Duke of dark night didn't seem to expect Bai yanzhenyu's speed to be so fast. He responded in a hurry. Although he prevented Bai yanzhenyu's attack, his escape was also stopped.

"Eh? You have two skills. Come again!"

Baiyan Zhenyu heard a light sigh and found that the Duke of the dark night had a good fighting ability. He immediately stopped retaining it and fought with him.

Conan, who came after him, found that Baiyan Zhenyu was as strong as the Duke of dark night. He quickly reminded: "sister Xiaolan, go and help brother Zhenyu."

However, Xiaolan, who knows Bai Yan Zhenyu's strength, can't believe everything in front of her, because she knows that among the other participants, only his idol, Maeda Cong, has such strength, that is, Maeda Cong is likely to be the real murderer.

Seeing that Xiaolan didn't help Baiyan Zhenyu, but stayed where she was, Conan was surprised and reminded: "sister Xiaolan?"

"Well, I see."

Xiaolan, who came back, endured her loss and joined the battle to subdue the Duke of the dark night with Baiyan Zhenyu.

In fact, during the battle, Baiyan Zhenyu also guessed about the true identity of the Duke of the dark night. After taking off his mask, he sighed: "Mr. Maeda, it's really you. Why did you kill Jiang Yuanshi man?"

"No, I just have a grudge against him."

Qiantian Cong stopped resisting and let Bai Yan Zhenyu control him. He said relieved, "I admit that I did everything. Give me to the police."

Akiko Sasayama came over, looked uncertain at Qian Tian Cong and scolded, "what do you want to do?"

Qiantian Cong lowered his head and answered softly, "Mingzi, I'm sorry, I can't be with you in the future. You should live a good life."

"Congjun, you are a fool!"

Akiko Sasayama looked at his fiance affectionately. He couldn't help jumping into Maeda Cong's arms and sobbing in a low voice.

When the Henggou police officer who heard the news was ready to arrest Qiantian Cong, Akiko Sasayama suddenly left his arms, stopped him in front of the people, and said, "Congjun is innocent. I am the real murderer of the man who killed Jiang Yuan."