In front of the ruins made of piled rubble, Conan, Kaito, and Lupine reached an agreement, then took a flashlight to shine around, and finally walked to a cave together:
"...There doesn't seem to be any hidden passages in the walls around here. It seems that this cave is the only way out."
"Then let's set off now and see what's in this underground palace!"
The three people looked at each other and then walked into the cave together.
It was pitch dark inside the cave. The three of them walked carefully. It didn't take long before they passed the cave, which was only twenty meters long, and stood in front of a corridor about fifteen meters long and three meters wide and high.
The walls, ceiling, and floor on both sides of the corridor are all made of masonry, and there doesn't seem to be anything unusual about it.
Conan, Kaito, and Lupine stopped in front of the corridor, and then used flashlights to shine around. After a while, smiles appeared on the faces of the three people:
"...I see! This looks like an ordinary corridor at first glance, but there are some dark holes in the walls on both sides. Something should come out of them. As for the 'button' that triggers the mechanism, it should be there. on the ground……"
"That's right." Conan nodded, then shined the flashlight on the ground and said with a smile, "... Just look carefully at the shape of the bricks on the ground and you will find that most of the bricks here are 40 cm x 20 cm. Rectangular structures, only a few are square structures of 30 cm x 30 cm..."
"...Moreover, the distance between these square-structured bricks is just enough to move, which means..."
"As long as we step on these squares, we can pass by!~" Lupine III chuckled:
"...The mechanisms in this castle are surprisingly simple!"
Kaito also nodded in agreement and said with a smile: "It's normal for the mechanism to be simple, right? This is the underground palace of his castle after all. In my opinion, Mr. Kiichi built this underground palace because he wanted to use it as an adventure and entertainment place for his little friends. Yes! Therefore, the things that will come out of the dark holes in the walls on both sides are most likely blunt wood or the like, which will never hurt anyone..."
"That's true. Who would build a mechanism that can really kill people in their own castle!~"
Conan, Kaito, and Lupine were talking, and then Conan took the lead and was the first to step onto the square floor tiles. He turned his head and looked around, and said with a smile:
"……Safety!"
…
Exit Xiyi's office.
Under the leadership of Shu Yunwen, everyone walked down the stairs and stood in front of a corridor. They stopped and looked back and forth——
Before entering the underground palace, Chengshi had already checked all the mechanisms in the underground palace.
According to Cheng Shi, there are two entrances to this underground palace. No matter which entrance you enter, you will eventually meet on the same road. The end of this road is the palace where the mask is hidden.
Before the meeting, the length of the two roads and all the agencies, including the order of the agencies, were the same...
Shu Yunwen was thinking about it when Uncle Maoli held a flashlight in his hand and looked around curiously: "...Really, classmate Yunwen, didn't you say there are many institutions in the underground palace? We walked from the office to the underground palace and didn't encounter any. Go to an agency..."
Shu Yunwen turned to look at Uncle Maoli, then curled his lips and said:
"...That was the staircase just now. There was only a mechanism to close and open the entrance and exit! But here, the mechanism has officially started. There is only one road in front of us, but it goes around and there are many mechanisms. Like It's the corridor in front of us, and there are mechanisms inside..."
"Is there any mechanism in the corridor ahead?" Xiaolan looked worried, "...it won't be dangerous, right?"
"Uh... this..." Shu Yunwen was not sure what to say, but Nanatsuki Koshizui had already said: "... Yunwen, the trap you are talking about is something that will appear on the wall here. ? Also, the way to crack the mechanism seems to be related to the shape of the bricks on the ground. As long as we follow those square bricks, we should be able to pass..."
After Yuesui Nanatsuki finished speaking, Shu Yunwen was slightly stunned, and then said: "...The type of mechanism you mentioned is correct, but the method of cracking it is wrong! The square brick in the middle of this corridor will trigger the mechanism. If If you step on all the square bricks, the mechanism will activate..."
"...If you want to pass safely, you have to avoid the square brick in the middle and step on the rectangular brick next to it..."
As soon as Shu Yunwen finished speaking, the corners of Yueshui Nanatsuki's mouth twitched twice:
"...What? The middle square brick will trigger the mechanism when stepped on? Then why did Mr. Xiyi deliberately place a series of square bricks in the corridor?"
By the way, since this is not the correct answer to the "puzzle", why did you leave the "brick shape" clue?
Are you trying to trick people?
Yuesui Nanatsuki complained in his heart, while Shu Yunwen spread his hands and said: "I don't know what he thinks. In short, you must be careful! Well... forget it, I'll walk in front and you follow me. Whichever brick I step on is the same brick you step on, don't step on the wrong one, do you understand?"
Shu Yunwen spoke and walked at the front, leading everyone through the first mechanism easily. The general stared at the road leading to the front and laughed:
"...The mechanisms here are quite simple, and there doesn't seem to be any danger. Let me tell you, little brother, we don't need to follow you all the time. We can also act on our own..."
As soon as Gan Jiang finished speaking, he wanted to walk forward by himself. Shu Yunwen immediately grabbed Gan Jiang Yi's bag and frowned:
"There's no danger? Do you really think so? Do you think the institutions here are just toys?"
The general turned to look at Shu Yunwen, who raised his foot and stepped on the corridor he had just passed. Then he heard a "rumbling sound" coming from the corridor, and holes in the walls on both sides appeared. One by one, metal spikes stabbed towards the opposite wall.
In just four seconds, the spikes pierced the opposite wall and then retracted, leaving only a little dust in the corridor.
Everyone looked at this scene with dumbfounded expressions of disbelief——
Were all the metal thorns that popped out of the wall just now?
Such dense metal thorns, if you are really stabbed, you will definitely die!
What the hell is Mr. Xiyi doing? Why would he install such a dangerous mechanism under his own castle?
Everyone was stunned, and Shu Yunwen looked at General Qian again: "Mr. Qian, don't you want to act on your own? Please leave now!"
"Uh... forget it." Gan Jiangyi was sweating profusely and backed away with a dry laugh, while Xiaolan looked worried: "...Classmate Yunwen, the other agencies in the underground palace are just like the ones here. Is it dangerous?"
"Yeah...that's right!" Shu Yunwen nodded.
"Then, if Conan encounters the mechanism, wouldn't it be..." Xiaolan stuttered, thinking back to those spikes just now...
Well, would that be a good guy who would be directly dressed as a candied haws of sugar?
