After entering the secret passage, ash Hara AI and bu Mei's trio opened the multi-functional watch given to them by Dr. Ali, walked slowly along the stairs, and soon came to the place where Conan's blood was left.

Guangyan, after all, was a child. He didn't recognize that it was slightly blackened blood after oxidation. He asked, "what's this?"

Ashara AI's heart tightened and anxiously explained, "this is blood, and from the situation that the blood dried up, it should have flowed not long ago."

"Wow, classmate Huiyuan, you are so awesome..." Bu Mei exclaimed and said admiringly, "it feels like Conan."

"This is not the time to say this," ash Hara AI said more sadly instead of being happy because of Bu Mei's praise. "This blood stain is probably Conan's or Baiyan's..."

"Eh? Isn't it?" the three of Bu Mei were startled by ash yuanai's words, and couldn't believe the possibility.

At this time, Guangyan's flashlight inadvertently swept to the nearby steps, found the text engraved on the stone steps of the stairs, and immediately exclaimed, "look there, it seems that some text has been engraved..."

Ash yuan AI and others came forward. After reading the content of the text, they frowned and thought about it one by one.

Looking at the handwriting on the steps, bu Mei asked anxiously, "are these words the clues left by Conan or brother Zhenyu?"

Ash yuanai was very calm and denied: "no, from the content of the text, it should not be left by Conan or Baiyan, and didn't you notice that the score is very old."

Mrs. yuan scratched her head and asked, "who will leave this text?"

"I don't know..."

Ash yuanai's eyes showed a dignified and fearful look, and he analyzed in a deep voice: "however, it is obvious that there are words left behind. Therefore, at present, we can see one thing, that is, the person who left the words can't engrave any more, so he will stop here."

"Can't carve it?" Guangyan, the smartest of the three, keenly perceived the truth and said in a trembling voice, "classmate ash yuan, what do you mean..."

Ash yuan AI nodded and said coldly, "yes, maybe that man died here!"

After ash yuanai said these words, the secret room was quiet. The bold Bu Mei trio really felt fear.

"If I guessed right, Conan or Baiyan should have found these words or something else. When they were looking at these words intently, they were knocked unconscious with sticks or stabbed with knives from behind. These blood stains were left on the ground."

While analyzing and guessing the situation of Baiyan Zhenyu and Conan, ash yuanai continued to look for more clues around. Unexpectedly, he found Dr. Ali's glasses not far away.

Bu Mei took ashara AI's arm in horror and asked in a trembling voice, "how could Dr. Ali's glasses fall in such a place? Did Dr. Ali have an accident?"

"It's very possible, because Dr. Ali hasn't returned to the guest room to rest... Next, you must be careful..."

Ash yuanai reminded everyone to keep quiet while exploring clues around. She found that a nearby wall was slightly different, so she went over and pushed it. As a result, the wall suddenly rotated and threw her, bu Mei and them out of the secret room.

"Ah!"

The three people who fell on the outside corridor shouted softly, and then got up from the ground. As a result, they found that Yuantai was locked in the secret room.

"Damn... Why can't this door open?!" ash yuanai tried to open the secret door on the wall, but found that the secret door didn't move.

Ash yuanai didn't dare to continue wasting time here. He made a quick decision and said, "there's no way. It seems that this door needs a specific mechanism to open from the outside. Now we return to the room on the second floor and go in there to meet with Mrs. yuan."

"OK." Guangyan and bu Mei have regarded ash yuanai as the backbone, did not object to her proposal, and ran to the room on the second floor with her.

When they arrived at the room on the second floor, they found that the door of the room seemed to be locked and could not be opened.

Bu Mei looked at the closed door and said incredulously, "what's going on? Didn't we go in through this door just now?"

"This shows that someone has been following us just now. The reason why he locked it was to prevent us from turning back from the original channel and escaping from here to the outside, but he didn't expect that we happened to come out of the door just now..."

Ash Hara AI's forehead burst into a cold sweat, but he was not too flustered. He calmly said, "Mrs. yuan... He may have fallen into that man's hand!"

"No... Yuantai..." Bu Mei covered her mouth and tears flashed in her eyes. Fortunately, she was sensible and didn't cry at this time.

"Since we can't enter here, we can only find other entrances, and we must rescue Baiyan while they may still be alive, otherwise our lives will be in danger..."

After taking a deep breath, ash yuanai ordered, "let's go and have a look at the other rooms on the second floor."

The three carefully searched the entrance in other rooms on the second floor, but found nothing. They soon came to an unusually spacious room at the back.

While trying to find the secret way, Guangyan reminded: "this is the studio of Uncle Jiangong. He said that he can draw safely here. There should be no secret way..."

"Well, although the possibility here is very small, we should also look for it." ash yuanai carefully observed some messy studios and accidentally knocked down a pile of newspapers.

Bu Mei hurried to help pick up the newspaper. At the same time, she asked, "how can there be so many newspapers here?"

"These old newspapers are used to wrap paintings or wipe brushes, but strangely, the newspapers here are very old newspapers, eh? Is this?!"

Ash Hara AI casually explained the reason and accidentally found the front page news in the newspaper, which reported the fire in the castle four years ago.

When ash yuanai finished reading the contents of the newspaper, Guangyan and bu Mei searched the room separately. Suddenly, Guangyan found that there seemed to be something on the ground outside the door, so he went to check the situation.

"Are these... Conan's glasses?"

Guangyan looked at his glasses and the dark corridor in front of him. He made a decision and got up and rushed into the dark corridor.