Two minutes later, the space behind the underground gate that was opened.

"This is definitely a construction machinery-level workload," Qianyu's eyes glanced at the scene above, with a certain tone, but a little sigh. "But even though I have considered the construction machinery, I never thought there would be such a luxurious building below."

At this moment, the group was in the interior of a huge egg-shaped underground palace. The height of the entire space was more than 15 meters, and even the highest point was completely covered with bricks. Obviously, the place was excavated and refined in a way beyond the reach of ordinary human resources.

"A such space, I think it should be a room related to [Egg of Memories], right?" Conan expressed his agreement. "If it was for the sake of solidity, it would definitely not be the towering egg shape, but would rather be hemispherical shapes."

"Hey, the coffin in front...yes, are there two locks on the coffin, and one is obviously locked back?" Police officer Shiraki's scream pulled their attention back to the ground - Qian Yu had previously focused all his energy on the most macro spatial structure, and instead ignored such conspicuous things in front of him.

In front of them, the light of a flashlight was projected directly onto a coffin, and in the middle of the coffin, two different locks were placed on the center of the coffin.

"Go and have a look!" As he said this, Jiroki Suzuki had already walked out of the crowd and rushed towards the direction of the coffin, and the others hurried over to see this.

The coffin is made of wood with very exquisite patterns carved on it. A wooden lock that is quite consistent with the elegant temperament of the wooden coffin is hung in a straight position. But at the same time, there is also a rather rough iron lock hanging on the wooden lock, locking the entire wooden coffin again - unless the two locks are opened at the same time, the wooden coffin cannot be opened.

"I think this should be the coffin of my great-grandmother?" Kasaka Natsumi guessed so much. "There is only the spiritual throne of my great-grandfather in Yokosuka's cemetery, but my great-grandmother is gone..."

This is her great-grandmother's coffin? Well, maybe it does provide something that everyone doesn't know, but it doesn't help at this time, because this is not what everyone cares about now.

When will a person put a second lock on a locked coffin?

If Qianyu is asked to look at a person's worst malice from the perspective of speculating on a person's worst malice, he can easily give a possible answer - that is, to make the owner of the first lock unable to open the coffin.

"Miss Natsumi," Suzuki Jiroki's attention was focused on the coffin itself. "This coffin... do you know anything about this? Can we open it and see? If we do nothing about this coffin, maybe we will never know the truth."

"Well, open it." Kasaka Natsumi agreed to Suzuki Jiroki's request without hesitation - the secret about [Egg of Memories]. Even if she is reluctant, she must helplessly destroy the sleep of her ancestors. "However, it seems that there is no professional here who can unlock the lock?"

"Children," just as everyone looked at each other, Officer Nakamori spoke - but he seemed to be talking to the children. "I had some instructions from my superiors before, saying that if there is any strange non-spoken task that cannot be performed, I will ask you if it will."

"..." Qianyu gave Conan a questioning look, and then got a helpless lip response from there.

[I guess my dad can do such a thing, and he must fully squeeze out the last part of his child's ability.]

"Okay, okay," sighed, and Qianyu stood up. "I understand. Dr. Agasa gave me some professional tools before coming. I think it might be for this time."

As he said this, Qianyu opened his backpack and took out the unlocking cube. "I may need some time to rest assured."

Unlike the complex mechanical locks at the entrance of the secret passage before, these two locks are the simplest padlocks, so the unlocking cube just trembled for a moment before opening the two locks separately.

Such a simple lock... Is the owner of the second lock really just planning to use such a simple lock to stump a senior like Mr. Kiichi Kasaka? This is really an incredible guess.

Although I have such questions to understand, now does not seem to be the most reasonable time to think about such things. As long as I open the coffin and find out, everything will naturally be solved.

"Okay, the second padlock is also opened." Qianyu took the Cube back into his backpack, watched Kogoro Mori and Officer Nakamori walk forward and slowly lifted the heavy wooden coffin wall.

"Squeak (swish)—" Accompanied by the wooden moans and the twitching of the hydraulic piston, the coffin lid was slowly lifted up by the two of them. "Why is this thing so heavy? We both have such a hard time lifting it, at least 100 kilograms, right?"

[100 kg?] Qian Yu raised his eyebrows, because after using the auxiliary unit to simply estimate the volume of the coffin lid, he did not think that the coffin lid of this volume could reach a weight of 200 kg (pulling the coffin lid from one side only requires lifting half of the weight of the coffin lid.)

But just before he got the answer to this question, new questions emerged.

"..." Qianyu is shorter, so he has a better perspective than adults to look inward when the coffin is half-opened. Compared to Conan, who is also there, he has higher dark vision, so he can see the inside clearly earlier than Conan.

But he saw nothing—or in other words, what he saw was [nothing].

When there was already a considerable amount of light projecting in, Qian Yu could only see the darkness in the coffin...

Or, it is because no matter how sharp the eyes are, you can only see a darkness when you look at the darkness?

When the coffin was further opened, Qian Yu confirmed this: the coffin was covered with a layer of black cloth, and the black cloth was not flat, and it looked like something was placed under it.

When confirming this, Qian Yu saw more - a silk thread was connected to the proximal side of the coffin lid, and the other end was pulled towards the bottom of the coffin. As the coffin lid was opened, the silk thread was constantly pulled out from the bottom of the coffin.

That's right, it's an agency, but such an agency is...

Before Qianyu could speak the warning words, the thread broke and the opening of the coffin suddenly became smooth.

Immediately afterwards, the black cloth covering something was also pulled out to one side by a force from nowhere, showing the things covered below to everyone standing in front of him.
Chapter completed!