The third floor is where the old lady lives. There are only two study rooms and a bedroom on the entire floor. So, the rest of the space on the third floor is most likely used as a secret room.

Perhaps to take care of the old lady, there were many more lamps on the third floor. But when the wind blew, it looked even more eerie, and a few flickering flames appeared and disappeared in the corridor like ghost lights.

Ai Huibara followed her memory and walked towards the room she was in that morning. The sound of her running footsteps echoed in the empty castle, making an ethereal and eerie sound, like the sound of high heels outside the door in the ghost stories she had heard since she was a child.

And when the rhythmic footsteps were followed by a series of chaotic clapping sounds, the horror of the castle became even more obvious. Huibara Ai glanced at the huge and weird shadow reflected on the wall like a crow, and quickly ran to the corner of the corridor, listening quietly to the heavy and light sounds gradually approaching, and she suddenly ran out of the corner.

The corridor was empty. Huibara Ai ran straight to the entrance of the staircase and turned on the flashlight.

Found out..

"Habara-san, are you going to explore the secret passage?"

The three members of the Junior Detective Team huddled together and laughed, with well-behaved expressions on their faces. Dr. Agasa, who was standing behind them, touched his head awkwardly: "Hahaha, we all come here to use the restroom!"

Huihara Ai: "..Forget about the three of them, why are you, Doctor, joining in the fun?"

Dr. Agasa said as a matter of course: "In such a dark place, it is safer to have an adult by your side."

No, when there is no danger, the doctor is the biggest danger.

Haibara Ai sighed helplessly, saying that the actions of the three members of the Detective Boys League were completely within her expectations.

"There's really nothing we can do about you."

"But, Doctor, please go and call the police now," she looked at Dr. Agasa calmly, "It's best to call a police officer who can respond quickly. You can go find Officer Megure."

"Why, why are you calling the police all of a sudden? Did something happen to Xin Xiaoyuan and the others?"

Guangyan suddenly realized something and his eyes widened: "Could it be that Conan and Brother Qichuan are in danger?"

"Yes," Huihara Ai nodded. "Based on the level of these two people, they should be able to solve any difficult locked room by now. But there is no news now, I am afraid something has gone wrong. Not to mention my brother, he is not in good health and has night blindness, so he can't be of much help in this situation."

"What should we do?" Ayumi's voice was trembling and she was crying. "Is there a bad guy in this castle? Are they going to be killed?"

Haibara Ai:...Why did you think of such a cruel place.

It may not necessarily come to this.

She was speechless for a moment, but still comforted him: "No, we called the police only because we were worried that they wouldn't be able to get out and we wouldn't be able to get in. At that time, we could only ask the police to help us save them."

Realizing the seriousness of the situation, if it was just this, Ai wouldn't have to call the police. I'm afraid Shinichi and the others might really be in danger of their lives. Dr. Agasa nodded and said, "Okay, I'll call the police now."

Seeing Dr. Agasa disappear around the corner, Huihara Ai turned around and said helplessly, "You guys, don't run around, okay?"

"Got it," Genta waved his hand in dissatisfaction, "Haiya, you really sound like Conan when you talk like that. We are not children, don't talk to us in such a coaxing tone!"

You are not children, so why am I a child?

Huihara Ai nodded tiredly, but now she was the only fake child who could barely be considered an adult here to stabilize their emotions: "In short, don't run around, don't move around, and be sure to stay together."

Unfortunately, before she could finish her words, Yuantai rushed out impatiently, completely ignoring orders.

"Okay, okay, let's go, don't waste time!"

"Yuanta!" Ayumi exclaimed, "Don't run around!"

"This guy!"

It wasn't just Haibara Ai who was tired. Mitsuhiko knew that they couldn't just run around in the complicated situation of the secret room. The castle was too big, and it would be difficult for them to get together again once they were scattered. And this kind of darkness was really a natural enemy for children. If there was really any dangerous person in this castle, then these scattered children would be giving away their lives.

He turned on the light and shouted to Yuan Tai, "Yuan Tai, don't run around. Be careful, there are ghosts in the castle that want to catch children!"

Although these words are childish, they are useful. Yuantai was startled, and it seemed as if countless hands were crawling on his back in the dark night. He felt panic in his heart and returned to the small group in an instant in fear.

"Hurry up, hurry up, be careful not to get separated, and pay attention to teamwork."

The other three: ..you are a devil;

They quickly found the study room they had been in in the afternoon. The study room had already been tidied up and was very clean inside, completely different from the mess it had been in the afternoon.

Ayumi closed the door and carefully looked around the study, wondering, "But where could the secret passage be?"

"There is a mechanism. As long as you turn the clock, when it is adjusted to a fixed time point, the mechanism will be triggered. In the afternoon, the chairs and books here suddenly fell to the ground. The cover of the clock was also opened. Edogawa Conan may have triggered some mechanism here, which caused the door of the secret room to open."

"And according to Terumitsuhiko and Genta, my brother just leaned against the wall after saving Genta. So he probably disappeared around here as well, so now we just need to try the object on this wall."

Haibara Ai put the chair and books away, opened the door on the wall, turned the clock inside, and after hearing a click, the wall suddenly started to rotate at a very fast speed. Thanks to Genta who was blocking her side, Haibara Ai was not knocked out.

They looked at the wide-open door of the secret room and breathed a sigh of relief.

Success!

The stabbing pains from the back of his head made Qichuan Yuan feel like he was lying on the tip of a needle. The dizziness in his brain also made him feel confused, as if he had lost track of time and day. Qichuan Yuan suppressed the urge to vomit in his chest, frowned, and opened his eyes.

However, the darkness before him made him dazed for a moment, and then waves of surging fear and disgust hit his chest again and again, almost suffocating him. He held his breath, pinched his palms hard, and tried his best to stay calm.

"Don't be afraid, don't be afraid..."

It seemed as if someone in his memory had said this before. He unconsciously imitated and comforted himself. Some tiny red flashes appeared before his eyes. He couldn't see clearly what it was. Qichuan Yuan took a deep breath and held his breath.

"I will always be with you, don't be afraid..."

The gentle soothing voice seemed to appear in his ears again, and this time Qichuan Yuan recalled the voice of that person, that arrogant and irritable curly-haired police officer.

It's hard for Jinpei Matsuda to say such disgusting words at that time, Gen Sugawa thought with a smile. It was as if Jinpei Matsuda was retorting with an unhappy look on his face when he teased him in such a forced way. He sighed softly, and the fear in his heart dissipated a little.

Sometimes the loss of vision will amplify other senses. The smell of old dust, mixed with a little damp earthy odor, and the rustling sounds of ants crawling are all particularly obvious in the complete darkness. Qichuan Yuan tried to distract his thoughts, closed his eyes and caught some slight sounds to divert his attention.

Suddenly, a heavy sound of footsteps was heard, and Qichuan Gen's heart tensed up. Who was it? Could it be Conan?

No, Conan's footsteps were much more brisk, but these footsteps were dragging, like the heels rubbing on the ground, which made them sound like an older person.

The man didn't turn on the light, so he probably didn't notice that there was someone sitting on the ground. Logically, Qichuan Yuan could have taken advantage of him to subdue him. However, Qichuan Yuan was almost paralyzed now, so he could only huddle against the wall quietly without making any sound.

The figure gradually approached, looking tall and thin, unlike the two male owners, who were much more muscular. With such a body shape, Qichuan Yuan could only think of the gardener in this castle.

The man seemed to be very familiar with the route here, and walked towards the door with a clear goal. It seemed that the darkness had no effect on him. He was getting closer and closer. Qichuan Yuan leaned against the wall motionlessly, silently weakening his presence.

There was still one person's distance, Qichuan Yuan held his breath, up and down, it should be the head.

Qichuan Yuan, whose head was still aching, silently raised his hand to touch his head, then silently retracted his legs.

He waited quietly for a while and found that the man on the ground was motionless, lying on the ground in an awkward posture, as if he had fainted.

Sugawa Gen: ..Pfft;

Forgive him, such a tragic thing happened to this person, he didn't really feel like laughing, he just suddenly remembered some funny things.

Suddenly, there was a dull friction sound, and it was like the sound of a stone suddenly loosening. The wall beside him suddenly flipped over, and a little light leaked in through the gap. Unfortunately, Qichuan Yuan's attention was now all on the man on the ground. He watched the wall swing over and hit the man on the head at lightning speed.

The man's body twitched unconsciously due to the pain. But he was still in a deep coma. Qichuan Yuan tried hard to suppress the corners of his mouth that were crazily raised. His head suddenly hurt, and he dragged the man inside out of a guilty conscience.

Finally, the secret room was opened. Outside the wall, Huiyuan held up the flashlight sadly. She paused and saw that her brother didn't seem scared at all. Instead, he dragged someone inside in a good mood. After noticing the movement, he even waved to her with a smile.

"What a coincidence, Ai-chan, you're here too."

Huihara Ai:...what a coincidence;

Why are you laughing so happily? Are you suffering from claustrophobia?

It's a waste of time.