The gardener explained to them: "Before his death, the great master once said that he would give his treasure to the person who solves the mystery of the castle."
"Oh, that's it..." Dr. Ali nodded.
"By the way, my daughter hasn't arrived yet?" the lady in the wheelchair suddenly asked.
"Ah?" The gardener was startled.
"Isn't she going to come back today to celebrate my birthday?" Mrs. Tai said nonchalantly, "Ask her to come to my room immediately when she comes back. I will wait for her!"
After saying that, Masuyo Mamiya supported the wheelchair and walked away into the house.
The gardener quietly said to Dr. Ali: "It has been like this since the fire."
"Maybe she was greatly stimulated..." Dr. Ali sighed, feeling that this old lady was really pitiful.
Her husband died, her son-in-law died, and her daughter was killed in a fire. Even she herself became mentally unstable.
"Is there a room where I can see the chess set in the courtyard?"
Conan suddenly asked Mr. Gardener.
The gardener didn't know what the child was going to do, but he still led the group to a room that clearly overlooked all the chess sculptures.
Everyone stuck their heads out of the windows and exclaimed.
"Wow! Great!"
"The chess pieces are arranged so neatly!"
I saw that the chess pieces on the lawn were all arranged in a lawn square that was trimmed into a chessboard style. The black chess pieces were placed in a standard letter "G", and the white chess pieces were placed randomly around the black chess pieces.
"Ah! Yuanta, please don't squeeze!"
Ayumi said dissatisfiedly, and several people heard Mitsuhiko's voice coming from the window of the next room:
“You can see it from this room too!”
Yuantai heard the words and rushed to the next room. Yuan Huaiyu followed him, turned back to Dr. A Li and said:
"I'm going to look after those two children. The children in this room leave it to you, Dr. Agasa."
"I'll go over and have a look too!" Conan, who was lying on the window sill and thinking hard, immediately wanted to follow Yuan Huaiyu when he heard that he was about to leave the room.
As a detective, Kudo Shinichi likes this kind of puzzle the most. He enjoys the sense of accomplishment when solving the puzzle very much.
And he took it for granted that Yuan Huaiyu, whom he regarded as a leader in the detective profession, might have some clues.
Faintly, he had a desire to compete with Yuan Huaiyu in his heart. He hoped that he could solve the mystery faster than Teacher Yuan.
Because if the great master left behind any riddles, this chess diagram on the grass that has been passed down from that era to this day may be the most critical key to the old riddle, or it may be the riddle itself.
Therefore, Conan followed Yuanhuaiyu, wanting to know Yuanhuaiyu's movements as soon as possible.
This is also the lesson he learned from the last gun threat incident at the football field - if he didn't follow Yuan Huaiyu, God knows what key clues he would miss and fall behind.
The two of them walked to the next room together and came to the window. Sure enough, they could clearly see the chess set.
"Hey! Conan!" Ayumi excitedly waved to him from the next room.
He waved to Ayumi, but suddenly his whole hand froze in mid-air as if he noticed something.
He retracted his body and stared at the window next to the wall, recalling the layout of the room just now in his mind.
[Wait a minute... In the room just now, the window was also against the wall...]
But when he and Ayumi waved to each other just now, there was still quite a wide gap between the two windows!
【What is the space design here...】
Conan took advantage of the fact that Yuanhuaiyu, Yuanta and Mitsuhiko's attention was still focused on chess and not on himself. He turned around and walked to the wall between the two rooms, stretched out his hand and knocked on it.
"Crack." is not the sound that should be made by knocking on a solid wall.
[This means...there is something wrong with the wall in the middle!]
Conan glanced at Yuanhuaiyu and found that he didn't seem to realize this, and he couldn't help but feel secretly happy that he was one step ahead.
He looked up and down the wall, and finally found the clock hanging on the upper side of the wall.
He suddenly had an inspiration, moved a chair, put some books on it, went to the clock, and opened the cover of the clock.
[Probably from the past... turn the clock on the wall to a specific angle...]
He didn't adjust for long when the part of the wall in front of him suddenly rotated, bringing his unstable center of gravity into the space behind the wall.
"oops!"
The wall quickly closed. Genta and Mitsuhiko, who heard the sound, looked back, but saw nothing except books scattered on the floor and fallen chairs.
"Eh? Wasn't Conan still here just now?" Mitsuhiko asked Genta in confusion.
"Hmm...why did he disappear all of a sudden..." Yuantai scratched his head.
Yuan Huaiyu, who was standing aside, looked at the wall that swallowed Conan, a smile appeared on his face, and then he shook his head helplessly.
He knew that no matter what, this kid had adventure in his blood.
If after entering the secret passage, Conan could shout loudly to let everyone know about the existence of such a secret passage, maybe a series of things that followed would not have happened.
But after all, he is a son of a plane who is not afraid of death. Edogawa Conan, a primary school student from the God of Death, relied on the protagonist's halo to protect his body, so he broke in fearlessly.
Yuan Huaiyu has not yet realized that there is another reason why Conan chose to explore the secret passage alone, and that is because he wants to unlock the secrets in this castle before him.
…
"It turns out this is no ordinary castle..."
Conan sat in the narrow gap between the two walls and sighed.
He stood up, dusted himself off, and first turned on the flashlight attached to his watch.
He walked forward and soon saw a staircase going down ahead.
In the dark and silent space, he walked down the stairs for an unknown amount of time until his foot suddenly kicked something.
He used a flashlight to shine, but was horrified to find that what was blocking his path was a corpse that had turned into bones!
The corpse was wrapped in torn cloth, and the two empty eye sockets and slightly open lower jaw seemed to be accusing him of something.
Conan was completely unaware that just when his attention was completely focused on the bones, a black figure behind him raised a brick and hit him hard on the back of the head!
"pound!"
…
"What? Conan is missing?"
Ayumi was a little panicked.
"But wasn't he still in your room just now?"
"Who knows!"
"We just turned around and he suddenly disappeared!"
Mitsuhiko and Genta expressed that they were also desperate.
Haiyuan Ai looked at Yuan Huaiyu: "Where is Teacher Yuan? Have you seen Edogawa-san?"
Yuan Huaiyu shook his head: "I'm just like the two of them. I just didn't notice that Conan disappeared."