In the Shiraku Family Courtyard, Gao Cheng followed Conan downstairs and happened to see Twilight talking to Uncle Maori.

"First there was a fire, and a few hours later someone committed suicide by jumping from the third floor......" Twilight glanced at Uncle Maori with a shaky beard, "It's really a god of death, Detective Maori......"

"It's just a coincidence, the accident happened just in time," Uncle Maori emphasized, "Besides, no matter where you go, you will be involved in a crime, which is the fate of a detective......

"That's why I want you to stay at home."

"Officer Twilight," Gao Cheng nodded to the officers who kept the evidence at the scene and carried away the body, and approached the scene, "Did you find anything?" ”

"I didn't find much of a discovery, but ......" Twilight subconsciously replied, and when she saw Gao Cheng, her beard suddenly shook, "There is another one......

"Huh?"

"Ahem, I mean, it's uncertain what Motive Lady killed herself......"

Gao Cheng looked at Twilight suspiciously, but did not answer.

It is also obvious that the police will decide that the suicide is obvious, and even he can't solve the mystery of the fat lady jumping off the building.

He had a vague impression of this case, and he remembered that it was also a serial murder case in Conan, but he couldn't remember anything about the case, and like the cases he had experienced in the past, he might only have unreliable intuition left for reference.

He always felt that Hibiki Haga was the most suspicious, not only in his background, but also in the first fire.

But Hibiki Haga risked his life to save the fat lady, which didn't look like a fraud at all, and subjectively he didn't want this musical genius to be a murderer......

Gao Cheng waited for the investigation of the group with a complicated expression, and soon followed back to the fat lady's room on the third floor, and the forensic personnel took the first step to collect evidence on the spot.

"At the time of the incident, the door was locked," Gao explained, "and the door to the storage room was also locked from the inside, and only the windows were open......

Twilight muttered with her hands behind her back, "There are no signs of a struggle at the scene, and there are no traces of anyone climbing outside the window......

"If someone really invades, they can only be hung from above."

Gao Cheng stood by the window for a while, taking advantage of the time of the police investigation to re-observe the room.

The broken Stradivari replica was still in place, and Uncle Maori accidentally kicked it, his eyes widened suddenly, his heart was about to jump to his throat, and he hurriedly squeezed out a "pure" smile towards Gao Cheng.

Seeing that the uncle's face turned blue, Gao Cheng helplessly explained: "That copy seems to have been broken by Mrs. Xuanyin herself." ”

"Yes, yes?" The uncle wiped his sweat, "But how can there be a replica here?" ”

"It's a replica," Hibisuke Haga observed, picking up the broken violin, "There are many replicas known for imitating Stradivari in the past, and there are countless ...... makers."

Officer Twilight also noticed this, and looked at Hibisuke Haga in surprise, "Who is this?" ”

"That's what I mentioned Mr. Hibisuke," Uncle Mori said, "and we were all downstairs in the room listening to Mr. Hibisuke playing a requiem, and then we saw Mrs. Aine fall out of the window......

"But I don't understand," Twilight frowned, "why did you smash the replica?" And the reason for jumping off the building to commit suicide......"

The uncle guessed: "Could it be that I always thought it was genuine, and suddenly found out that I was deceived, and I was angry......

"This is impossible," the housekeeper interrupted directly, "the old man specially took the genuine product for identification, and there was an identification mark on it...... But the case here is real. ”

The old man Choichiro, who was wearing pajamas, held his violin and said, "The real thing is here, hidden in the curtain at the head of the bed...... Ayin, that guy, is too uncherished. ”

"Uncle, can you let me take a look?" Hibisuke Haga took the violin from the old man's hand, looked into the sound cavity and said, "The label is indeed Antonio Stra Divari, this one should be genuine, otherwise I can also play a song, and it will be easy to distinguish the ...... after playing."

"That's not necessary," Twilight wiped her sweat secretly, "I see that these violins all look the same, it doesn't seem to matter if they are genuine or not, it's just that the instrument ......."

"It's okay, it's okay?" Uncle Maori stared at Twilight with wide eyes, "Don't you know about the police department?" Stradivari is a famous piano worth hundreds of millions of yen! And Mrs. Xuanyin has always regarded this piano as a substitute for her son!! ”

"Yes, that's right," Twilight said in a sweat as she was startled by the excited uncle, "so the old lady killed herself because she took the wrong violin......"

"Not really!" Conan interjected anxiously, "I also checked the bed when I asked the housekeeper to open the door and come in, there was nothing there, it must be someone who secretly replaced Stradivarius with a replica, and put it back after the incident, just after we left this room!" Right, Brother Joto? ”

Gao Cheng, who found out that there was a piano in the room, immediately attracted everyone's attention, scolded Conan secretly, nodded stubbornly, and said: "That's true, that's right, when you come, Officer Dusk, we will go down, and no one is watching here at that time......"

"In that case, let's investigate the fingerprints on this."

The old man stroked Stradivari and said, "However, for me who can freely enter and leave the storage room, the piano has long been stained with my fingerprints......

"Mine is quite a few," Hibiki Haga looked at Gao Chengdao, "Yesterday at noon, I stayed in this room to proof......read Stradivari for the birthday party in the evening, preparing for the birthday party in the evening."

"Here?" Twilight said.

"Yes, this is next door to the storage room, and it happens to be a piano to assist in the tuning," Kosuke Haga looked at his niece who was still in a very low mood behind him, "After the proofreading, I called Renxi, who was going to play in the evening, and handed the piano to her......"

Shiraku Renxi nodded: "It was like this at the time, so I also had my fingerprints, because I wanted to hear what the timbre was like after calibration, so I immediately took it out of the piano case and pulled it ......"

"What about the others then?"

"I'm the only one, Uncle Hibiki went out, and grandma said before that it wouldn't affect his school tone and just take a walk in the garden......"

Shirakuren looked back at Uncle Mori.

"Then in the evening, after showing it to Mr. Maori, the annex happened to be on fire, and the Red Butler took Stradivari back to the storage room......"

Officer Twilight glanced at the old man and the others: "In this case, all four of you will have the opportunity to secretly change the violin." ”

"Officer," several forensic officers reported, "the deceased's toe lines were detected on the windowsill and chairs, but the windowsill had only one foot, and it appeared that he had jumped off the windowsill directly......"

"Oh? No trace of hesitation wandering? ”