"The police department," Uncle Maori shook his head, "I think it's a suicide, maybe someone changed the real thing, but at the time of the crime, this was an absolute secret room, no matter how you look at it, it was a suicide." ”

Twilight was still a little hesitant, after all, most of Maori's judgments were wrong when she was sober.

"Is there a spare key in this room?"

"Except for Madame's own key, it's just me." The housekeeper responded.

"Well, the key to the room was found in the pocket of Mrs. Ayane's dressing gown, so it seems that there is no other possibility......"

"I'll just say it," the uncle glared at Conan, who always liked to interject with a stinky face, "It's not a serial murder at all, Mrs. Ayin's name is A, not H ...... at all"

"Wow!" Suddenly, a crisp piano sound interrupted the uncle, and the brisk rhythm of flowing water made the whole room feel refreshed.

Hibisuke Haga unexpectedly looked at Gao Cheng, who was playing on the piano in the room.

"DEFGAB," Gao Cheng stopped his fingers, and the notes stopped abruptly, "the order of the letters is scale, so G is followed not by H but by A." ”

"What?"

"If the murderer was a musician, he would definitely arrange it like this, right?"

"This ......," said Uncle Maori, stunned, "if the next letter is B, the person with B in his name ......"

"It's Jinqu Hongsheng," the housekeeper calmly pushed her glasses, "Is it me next?" Speaking of which, when I first came here, the master did say, 'If you're also in our family, it's exactly a complete scale.......'"

"Did I say that?" The old man seemed to care about everything else, just guarding his Stradivari violin, coughing twice from time to time.

"Anyway," Twilight said in a deep voice, "we need to investigate further, so please stay in your room first, with the officers, of course." ”

Gao Cheng closed the piano cover, and saw that the old man Choichiro was the first to leave, and hurriedly called for Shile Lianxi.

"Miss Lianxi," Gao Cheng asked carefully, "why did Mrs. Aine and your grandfather separate rooms?" ”

"Because my grandfather was a heavy smoker, he didn't quit smoking until now he had lung cancer, and my grandmother hated the smell of smoke, so it was like this for a long time......"

"If your grandfather dies, who will succeed Stradivari?"

"This, grandma and grandpa Saburo are gone, it should be me, right? Although Grandpa said that he would put it in his coffin and take ......it away," Shiraku Renki looked at Hibisuke Haga, who was being questioned by Officer Twilight on the other side, "But I think Stradivari is more suitable for Uncle Hibiki." ”

"Well, I see, thank you."

Gao Cheng withdrew his gaze from Hibiki Haga and turned his gaze to the open window.

It's not ......

After a pause, Gao Cheng walked past the many police officers and returned to the downstairs room with Conan.

"Joto," Conan asked as he walked, "did you find anything?" That secret room......"

"First of all, it is certain that the two incidents are man-made, the first fire, and the second jumping off the building, both have a secret room situation, plus the connection of several cases in the past, as long as you catch these, you will definitely be able to find the murderer......"

Gao Cheng walked to the table where he was sitting before and asked Conan, "Do you remember Hibiki Haga's every move at that time?" ”

"Yes, yes," Conan wondered, "you doubt Mr. Hibiki?" ”

"He's the only one closest to the window, and this is Mrs. Ayane's room above."

Gao Cheng looked at Conan expectantly.

In fact, throughout "Detective Conan", Conan solves cases most of the time with his excellent natural ability, his smart mind, active thinking, and bottomless knowledge make Conan like a fish in water in various cases, so there are often no obvious reasoning methods, and there is no need to spend a lot of energy pondering those reasoning methods like him.

This is the difference between a genius and an ordinary person, for example, he doesn't have the ability to remember instantaneously, Conan has, the kind that is integrated into his bones, and every time he robs a case with this little monster, it is stressful.

However, with this guy by his side, there is no need to be in vain......

"Mr. Hibisuke came up with his violin, just as the clock struck twelve," Conan said as he walked into the room from the outside, reminiscing as he walked to the window and opened it, "and began to play......

"Stop!"

Gao Cheng stopped Conan and followed him to the window.

"Why does he have to open the window?"

"Miss Hasuki said that this has always been the case when playing the Requiem, because the upstairs is the room where the old lady and Mr. Choichiro live, so that you can hear it upstairs......" Conan said, holding his chin, "but I also think it's too coincidental, just when he was playing, I saw the old lady jump off the building after a sound......

"You heard a strange noise, didn't you?"

"yes, that's why everyone looked out the window......"

"That's when Gao Cheng continued, staring out the window, "and then I remember that Miss Renxi hid in Hibiki Haga's arms and cried, and we soon left here too. ”

Conan thought and nodded, "At that time, Mr. Xiangfu asked the housekeeper to call an ambulance, and Sister Xiaolan and I also followed......"

"In other words, at that time, only Hibiki Haga was left here, and Miss Renxi who was crying all the time."

The clues in Gao Cheng's mind seemed to be gradually connected, he closed his eyes and stood by the windowsill, and as he entered the high-speed thinking mode for a minute, all the details were presented in his mind.

All the moves he saw were reproduced in Hibiki Haga.

"Puzzles, all solved......"

"Huh?" Conan came back to his senses.

……

In the fat lady's room on the third floor, Officer Twilight still had a headache for the case, but Uncle Maori looked positive.

"The police department, it must be suicide," the uncle pointed to the door, "There are only two entrances to this room, but the storage room is locked from this side, and the door key is only owned by Mrs. Xuanyin and the housekeeper, and Mrs. Xuanyin, who is in the secret room, stepped on a chair and climbed on the windowsill and jumped out, no matter how you think about it, it is suicide......"

"Isn't there a third entrance?" Gao Cheng and Conan walked into the room together, "the window was open all the time......"

"Stupid!" Uncle Maori said disdainfully, "Do you want to say that someone came in and out of the window?" The Twilight Police Department has already checked it just now, and there are no suspicious traces on it at all! ”

"What if Mrs. Inaya goes out by herself?" Gao Cheng said with a smile.

Without waiting for the uncle to refute, Twilight took the first step and said excitedly, "Have you already solved the mystery of the secret room, Brother Chenghu?!" ”

Every time Gao Cheng finds out the truth without making a sound, when he is with Uncle Maori, it really makes people feel like they are on a roller coaster......

"Could it be that Mrs. Aine was led down by the Requiem?" Twilight suddenly became suspicious.

"To some extent," Gao Cheng thought of Yuga Hibiki's figure, and quickly fixed his gaze, "In short, before solving the puzzle, you first need to bring 4 suspects over, and that Stradivari should also be brought, because that violin is the key to solving the case." ”