Gao Cheng silently walked out of the village office, and while the twilight was being interrogated, he found the old policeman from the police station on the way to the public hall.

"Uncle, do you still remember that case more than ten years ago? Did Mr. Aso really commit suicide? Gao Cheng asked very concernedly.

At the end of the minute, that magical state disappeared, but the train of thought did not disappear, leaving him with many doubts without clues.

"Hmm...... That's what the eyewitnesses said," the old policeman slowly recalled, "I remember that it seemed that the sightings were the former village chiefs, Kameyama and Kawashima...... Ah, by the way, there are also the village chief of Kuroiwa and Nishimoto, the ...... that the four of them saw with their own eyes"

"Aren't they the three of them who were killed this time?!"

Gao Cheng remembered the reasoning he had just made in a minute, and continued to ask, "Is there any relationship between the four of them?" ”

The old policeman nodded and said: "A few of them and Aso grew up together, I remember that the five of them went to learn piano together when they were young, and later when Aso became a famous pianist, Nishimoto often went to his overseas performances to cheer up." ”

After saying this, the old policeman reacted and said, "Ah, now there is only one Xiben left." ”

The corners of Gao Cheng's mouth twitched.

This old man's reflex arc is inevitably too long......

Returning to the village office with the old policeman, Gao Cheng continued to ask, "What about Dr. Chengshi?" Does she have anything to do with Mr. Aso? Is it Mr. Aso's daughter? ”

The old man shook his head: "Mr. Aso's daughter died in that fire a long time ago, and Dr. Chengshi only came a few years ago, but ...... Speaking of which, Aso still has a son who should still be alive, because he suffered a serious illness when he was a child, so he has been treated in the hospital......"

"Is it true?"

Gao Cheng sighed lightly, originally he thought that Asai Chengmi just had a special hobby of being a pseudo-mother, that is, the legendary women's clothing boss.

Now he knows the real reason why he is disguised as a woman, and I'm afraid it's all because of the fire more than ten years ago.

If you didn't guess wrong, the Aso family might not have committed suicide at all, so the head of Kuroiwa Village looked frightened before they died......

Gao Cheng clutched the wooden knife Toya Lake and followed the old policeman into the hall of the village office, where Mu Du was interrogating the group.

The suspicion of Narumi Asai has been naturally ruled out, leaving only Masato Shimizu, Nishimoto, Hirata and Reiko's fiancé Monday to be suspected.

As for the secret message of the score, Conan was not stumped for long, this guy just didn't know enough about the piano.

After retelling the deciphered message to everyone, Conan's gaze fell on Gao Cheng, who was following the old policeman, and the corners of his mouth rose slightly.

"It's him! It had to be him! When Nishimoto learned the information about the score, he immediately cried out in horror, "That guy is really alive...... Keiji Aso is really alive!! ”

"He's dead!" The old policeman said, "The bones and teeth found at the scene of the fire at that time have also been compared, and it is absolutely true that it is their family." ”

The old policeman recalled the tragedy and sighed: "Everything was burned down, and only the sheet music in the fireproof safe was left......

"Music, sheet music?!" Everyone present was shocked.

"Where are those scores now?" Maori asked anxiously.

The old policeman slowly recalled: "In the warehouse of the public hall...... But the key to the warehouse is in the police station, haha......"

"Then why don't you hurry up and get it?!" Twilight yelled with a dark face, "Go! ”

"Ah...... Be! The old policeman was startled and hurried out of the village office.

"Wait a minute, I'll go too!" Conan thought of something and hurriedly chased after him.

On the night road to the police station, Conan followed the old policeman and asked as if he were chatting normally, "Did Mr. Aso really let go and burned the family by himself?" ”

"Well, because it was the former village head, Mr. Kameyama, as well as the head of Kuroiwa, Mr. Nishimoto, and Mr. Kawashima, they saw it," the old policeman nodded, suddenly stunned, and reacted, "That little brother also asked this question before, and he specifically asked me about Mr. Aso's son......"

"What?!" Conan was startled, and suddenly thought of Gao Cheng's strange appearance after reading the score before, "Chengto...... Brother Gao Cheng, did he say anything? ”

……

At the village office, Gao Cheng called Asai Narumi outside alone.

"Joto-kun, what's the matter?" Asai Narumi looked at Gao Cheng's back uncertainly.

"Dr. Chengshi, you sent me that letter of entrustment, right? In the name of your deceased father......"

Gao Cheng turned to face Asai Narumi: "I have solved the case this time, including why you killed those people, and why Mr. Nishimoto is so afraid." ”

Asai Narumi's face changed, and he looked at Gao Cheng silently.

"It wasn't much when Mr. Kawashima died, but," Gao Cheng said in a deep voice, "When it was the turn of the village chief of Kuroiwa, you leaked a big flaw, and that was the bloodstains, which by no means looked like it had only been about five minutes, I think it was probably using the automatic turning device of the broadcasting station...... The cassette starts from the blank side, and when it is automatically turned over, it gives you more than 30 minutes of extra time......"

Gao Cheng glanced at the silent Asai Narumi and continued: "If you want to hide from the police here, only you, who were in charge of the post-mortem work at that time, moved Mr. Kawashima to the piano room after drowning, I think it is also to support the coroner, as a doctor, you know the autopsy process very well, and deliberately let the coroner bring Mr. Kawashima's body back to Tokyo for autopsy......"

"Actually, I knew you were a man from the beginning, but I didn't expect you to be Mr. Aso's son."

Gao Cheng looked up at the full moon in the night sky, and he thought of Taeko Dougaki in the previous case, and Director Ochiai in the museum incident...... Even murderers aren't necessarily bad guys, so Asai Narumi brought him and Mori Kogoro to him, probably in the hope that someone would stop him.

"Go and turn yourself in, Dr. Sung Si."

A look of surprise flashed across Asai Narumi's face: "Won't you hand me over to the police?" ”

He had heard of the competition between Gao Cheng and Mori Kogoro before, and this time it was obviously a good opportunity to suppress Mori Kogoro......

Seeing that Gao Cheng didn't respond, Asai Narumi smiled bitterly: "You are really a very powerful detective, Joto-kun, I originally thought it wasn't so fast, at least Mr. Mori didn't suspect it at all." ”

"I don't know what happened to Mr. Aso, but," Gao Cheng turned to leave, "I will definitely find out the truth, let Nishimoto get the punishment he deserves, and gamble on my reputation as a detective." ”