Ke Xue: I picked up a bottle of sherry at the beginning.

Quan Yi and Conan squatted beside the deceased, their faces solemn. Compared to facing the murder scene directly, this situation where the body was obviously dumped was more difficult to deal with.

"The water temperature of this stream is about 20 degrees." Quan Yi narrowed his eyes, then sniffed gently and said softly. His ability in autopsy was much better than Conan's amateur method, so his judgment was relatively accurate. "Based on the degree of decomposition of the body and the lingering stench of decomposition, the deceased has not been dead for too long."

"It's not changed much in appearance, just a little swollen from the blisters," Quan Yi said with a frown. "Although the stream water is running and doesn't have many microorganisms, a corpse that looks unchanged must have died not long ago, only a few hours at most."

"That's right." Conan nodded. "And judging from the band-like strangulation marks on his neck, the deceased must have been strangled to death and then thrown into the water."

"To prevent his body from floating up, they put a lot of stone lanterns on top, right?" Xiao Ai said softly, "If that's the guess, it should be pretty close, right?"

"Who...did this?" Mitsuhiko's upper and lower teeth were chattering, but he still managed to speak.

"I don't know." Quan Yi shook his head. "But I think I'm increasingly convinced that there are treasures in the house behind me."

"It's possible." Conan wrapped his hands with a handkerchief and searched the pockets of the body. He then pulled out a driver's license. "Tamei Terunaga, 42 years old... Is this all you have?"

"There should be something on him." Quan Yi frowned.

"Got it!" Before he finished speaking, Quan Yi took out a stone-like object from an inward pocket at the bottom of the deceased's trouser leg.

"What is this?" Yuan Tai looked at Quan Yi and Conan, and for a moment he forgot his fear and asked curiously, "Is it a treasure?"

"No... this..." Conan frowned and looked at the thing in Quan Yi's hand, "It's just a stone."

In Quan Yi's hand, there was a strangely shaped stone. The stone was not big, and looked less than half the size of his palm. Its shape was like half of a traditional ancient Chinese yin-yang fish. On the top of the stone, there was a word "Yan" carved.

·· ·······Request flowers····· ·····

"Call the police." Quan Yi said calmly, "Xiao Ai, call the police right away. Use a satellite phone. I don't think there's any signal here."

Xiao Ai nodded, took out her phone and started dialing.

"Should we return to the camp?" Mitsuhiko asked, "It seems dangerous here..."

"Not only is it dangerous, there's something strange about this house..."

"There's something strange in the house?" Conan frowned. "What do you mean?"

"There's a pocket sewn on the inside of the trouser legs, and there are these trousers and vests..." Quan Yi smiled, "They must be treasure hunters."

.. 0 0

"Treasure Hunter?" Conan blinked, "Are you sure, Izumi-kun?"

"That should be right." Xiao Ai's cold voice came from the side. The two turned around and found that Xiao Ai was holding a wet leather notebook in her hand. The notebook was only the size of a palm and looked like a notebook for taking notes. "This was found in another pocket of this person. His identity seems to be a treasure hunter."

"This is filled with information about treasures from all over Japan." Ai gently twisted the stuck-together pages apart, "There's even a detailed map."

"Is this true?" The children's eyes widened when they heard this. The treasure hunt plot they imagined in their minds actually became a reality, which made them excited.

"That's right." Xiao Ai glanced at Quan Yi and saw him nod before continuing, "He even remembers the treasure hunt in great detail."

"Read it to me." Quan Yi narrowed his eyes slightly, a gleam in his eyes, "I think this experience may contain clues to his murderer."

"'I've found a partner who can help me'." Xiao Ai whispered, "'This time, I will definitely be able to defeat that dirty thief'..."

The world's most expensive diamond

"Dirty thief?" Conan was startled, then turned to look at Quan Yi, who smiled and shrugged, "You guessed right."

"But that guy...is there anything here that interests him?"

"Maybe this is it." Quan Yi turned around and no longer paid attention to the corpse. He casually put the stone engraved with the word "Yan" into his pocket, squatted down and stared at the stone lantern. Although the children didn't understand what Quan Yi and Conan meant just now, they saw that Quan Yi was focusing on something else, so they hurried over.

Although he had a vague memory, Quan Yi still carefully examined the words written on the inner wall of the stone lantern.

The text was in regular script, written entirely in ancient Chinese. Quan Yi gently stroked the words carved on the inner wall and read them out word by word.

"The Nio Cave lies between the sun and the sun itself, a place where the elders gather and flourish to the utmost. The Nio Stone is there," Izumi whispered. "Those who do not fear the Nio's wrath, grasp the stone, which is larger than your fist, and recognize the eternal truth of the eternal good. Sanmizu Kichiemon..."

"Misui Kichiemon?" As soon as Izumi finished speaking, Mitsuhiko suddenly opened his eyes wide, "I remember it was at the end of the shogunate..."

"That's right." Conan smiled slightly, "It is said that he continues to provide financial support to a mechanical puppet master of the Shogunate faction."

"Mechanical puppeteer?" Yuan Tai looked confused. "Does such a thing really exist?"

"Of course they exist." Mitsuhiko said impatiently, "Now there are also mechanical dolls, just like some hotels use these dolls to serve tea or wine to guests."

"That's truly an amazing craft." Conan chuckled. "Compared to today's robots, the puppets back then did have a lot of craftsmanship that we haven't figured out yet."

Quan Yi tilted his head and said nothing. After all, he was just a holiday guy. He only had a superficial understanding of such things and could not compare with Conan at all.

"This mechanical puppet of Sanshui Kichiemon was very popular among officials at the time because it was so lifelike." Conan smiled slightly, "So he became a wealthy man in his generation, and people called him Mechanical Kichiemon."

"So..." Mitsuhiko's eyes suddenly widened, "Could it be that there's a Niou doll made by Kichiemon Mimizu hidden in here?!"

"Niou's puppet..." Genta shuddered when he thought of Niou's terrifying appearance and the puppet waving its sword towards him.

"That's impossible." Quan Yi smiled. "Even if there is one here, it's from one hundred and forty years ago. The doll has been stored in such a dilapidated house. In one hundred and forty years, it would have turned into a pile of rotten wood. How could it possibly have any power?"

"That's true..." Genta and Ayumi looked at each other and both smiled with relief.

"The Stone of Nio..." Xiao Ai stood beside Izumi and after thinking for a moment, she whispered, "Could it be that the Stone of Nio is hidden in this house?"

"That's right." Quan Yi chuckled and pinched Xiao Ai's face. The latter rolled her eyes but did not resist. "If it is hidden, it is the immortal Nioh Stone that has been passed down through the ages."

"Immortal and passed down through the ages?" Conan was pondering the meaning of that sentence. When he heard Quan Yi's words, he suddenly raised his head and said, "You mean, the Nioh Stone hidden there is..."

"That's right." Quan Yi smiled slightly, "Now you understand why he came here."

Quan Yi slowly turned around and looked at the ancient house in front of him, with a slight smile on his lips.

"Izumi-san, Conan, Ai-chan..." Ayumi looked at the three of them with a bitter face, "What on earth do you three mean..."

"That's right." Yuan Tai said with a distressed look, "I can't even understand the words written on this stone!"

"That's simple." Conan smiled. "'The Nio Cave is between the sun and the sun, where the elders gather and where prosperity is greatest. The Nio Stone is there.' Isn't that what it says?"

"We just don't understand this." Mitsuhiko said speechlessly.

"To put it simply, Niou resides next to the sun, and many respected elders gather in a prosperous place. That's where the Niou Stone is." Izumi smiled. "Is this translation simple enough?"

"So, this Nioh Stone is the treasure?" Mitsuhiko was the first to react. "But what exactly is the Nioh Stone?"

"The so-called Niou refers to the Kongo Rikishi." Conan explained with a smile, "And the stone he possesses is naturally the diamond."

"Diamond?" The children looked at each other and had some guesses in their minds, but they were still not very sure.

"Diamond is translated into English as diamond, which means the king of gemstones." Xiao Ai said in a cold voice, "Change it to a more familiar translation, which is diamond."

"Diamond!" The children suddenly realized and couldn't help but exclaimed.

"Actually, these ancient texts contain other hints as well." Izumi smiled. "'Those who fear not the wrath of the King of Mercy, grasp in their palms a stone larger than their fists, and discern the truth of eternal fame and immutability.' Think about it, besides diamonds, what other treasure could possibly be described as 'eternally famous and unchanging?'"

"Legend has it that diamonds arrived in Japan around the end of the shogunate," Xiao Ai nodded and said, "The timeline fits perfectly!"

"The next words are the key." Conan's face showed a mysterious smile. "Translated, it means something like 'People who are not afraid of Niou's wrath, hold the gem larger than the palm in your hand, and then understand the eternal truth'..."

"A gemstone larger than...a fist?!" Mitsuhiko's eyes widened suddenly, "Could it be..."

"This diamond..." Even Conan was stunned. "Surprisingly... No wonder it attracted him here."

"Ah, that's right," Quan Yi smiled. "Currently, the largest diamond in the world is the Cullinan, weighing 3106.75 carats. It's pure and transparent with a light blue hue, about the size of an adult man's fist, and a top-grade gem diamond. To this day, it remains the largest gem diamond ever discovered and has become legendary. The Cullinan was purchased for £150,000 and presented to King Edward VII of England in 1907. It was crafted into nine large diamonds. The largest, Cullinan I, is set in the King's scepter, Cullinan II is now set in the King's Crown, and Cullinan III and IV are set in Queen Mary's crown. If this diamond is the size of a human fist, then it truly is an astonishing treasure."

"Wow!" The children all looked excited.

"Brother Quanyi, how about we go in and look for diamonds!"

"Yes, Brother Quan Yi!"

"It just so happens that it has started to rain." Conan looked at the falling raindrops and smiled, "How about we take shelter in the courtyard? Izumi-ge... ge."

Quan Yi glanced at Conan with a half-smile: "Hiding from the rain..."

Conan laughed dryly, knowing that his excuse was a bit lame.

"Then go!"

"Good!" The children looked at each other and shouted excitedly.

"But you must be careful before you go in!" Quan Yi turned around and warned them, "Everyone, follow me obediently. Conan, you walk at the back. Don't make loud noises and don't touch things casually, especially you, Genta, do you hear me?"

"I heard it!" 5.5 The children said in unison again, with Yuantai's voice being the loudest.

"By the way, Izumi-nii, I've been curious since the beginning," Ayumi couldn't help but ask, "Who is this 'he' you've been talking about?"

"He." Conan chuckled, "He's our old rival."

"A man who travels the world searching for and stealing large gems, calling himself a gentleman... a thief named Kaito Kid."

"Phantom Thief...Kid?!" When the children heard the name, they were stunned for a moment, and then they looked even more excited.

"Will he come here too?" Ayumi's eyes lit up, and she was obviously thinking of the scene when she once ran into Kaito Kid on her balcony. "Or is he here now?"

"Not only Kaito Kidd is here, there should be someone else here too." Izumi said.

"Someone else...?" The children were stunned.

Quan Yi looked at the body lying on the ground. "Ah, the one who killed this poor man was his so-called 'partner'."

Conan's professional fake smile

Even though they were afraid, they still had to go in. However——

"Take a closer look. If you really decide to go in, this house is truly creepy," Quan Yi said deliberately. "It looks much more realistic than a haunted house in an amusement park."

After hearing Quan Yi's words, the children, who were already very well-behaved, couldn't help but shudder collectively and followed Quan Yi even more obediently.

Conan frowned.

(I've noticed this before... Why is there so much fresh dirt at the corners of the house where the walls meet the ground? It looks like it's been washed by water. Such wet dirt, can't it be caused by just this little rain?)

How is this going?

Conan looked back at Quan Yi, who smiled and said nothing.

"If... the Niou Cave is between the sun and the sun, then the treasure should be in the place closest to the sun, right?" Genta thought for a moment and suddenly said, "Then should we just go to the roof?"

"That's true at first glance," Quan Yi said, "but there's a good chance this is a trap. Anyway, all of you, follow me and don't run around. Do you understand?"

Yuan 27tai and others immediately nodded obediently.

Quan Yi gently pushed open the door of the house.

There was a sound of old wood rubbing against each other, accompanied by a burst of dust, but it didn't feel like it was blowing in his face. Quan Yi couldn't help but smile.

Someone had indeed been to this house.

Conan walked at the end of the team, looking around vigilantly. Izumi walked in the front, Ai was a little further back on his right, and in the middle were the children who were both excited and a little scared.

"This house was built by Jiji Kichiemon. I imagine there are many mechanisms inside." Izumi turned around and warned the children again, "You must be extremely careful."

(Who knows if there are other mechanisms in this house besides those shown in the plot...)

After the children answered "yes", Quan Yi took the lead and walked very carefully step by step. Seeing this, the children also followed him on tiptoe. Fortunately, there were no accidents all the way to the stairs.

"Next is this staircase." Quan Yi said softly, "Don't act rashly."

The children nodded hurriedly.

Conan turned on the watch-shaped flashlight on his wrist, and the children saw this and turned on the flashlights on their watches as well.

(I think it was on the fifth level...)

Quan Yi took out the small stone he had found outside when he came in from his pocket, took out one and threw it into the fifth box.

"Trap!" Xiao Ai couldn't help but exclaim.

Along with the slight sound of gears turning, all the stairs folded up in an instant, and the steps turned into a smooth ramp in an instant. If someone was climbing the stairs just now, they would quickly slide down, but this was not the most fatal thing. At the bottom of the stairs, the part that was originally thought to be the floor made a creaking sound, and a hole was opened, and the hole was filled with steel spikes that flashed with cold light!

The children were frozen in fear, while Izumi narrowed his eyes. "If you step too hard on the stairs, there's a trap... You really can't be careless in Kichiemon's house."

"So, what advice do you have for the gentleman next to you?" Quan Yi raised his head, looked at the darkness beside the stairs, chuckled, and shone the flashlight in that direction.

"Well done." As the flashlight lit up, a middle-aged man's voice rang out from the darkness. Then, a burly middle-aged man in a jacket emerged. "Bringing a bunch of kids treasure hunting?"

"We are not treasure hunters!" Conan saw the middle-aged man and suddenly had an idea. He pretended to be a child and spoke.

"Hmph, it doesn't matter." The middle-aged man snorted, obviously not believing Conan's words. "My name is Sudo Yunzo. Since you are here, you must be careful. Otherwise, you may die here."

"Yeah." Izumi smiled slightly and slowly walked to the stairs. Holding the handrail, he stepped on the slope twice. The slope turned back into stairs, and the pit at the top of the stairs disappeared. "The traps in Jiemon's house are probably enough to kill someone ten times."

"That's right." Sudo Yunzo looked at Izumi with a hint of surprise. "But Jiji Kichiemon is a very difficult person to deal with. I advise you not to act rashly based on appearances alone, otherwise you will definitely suffer a great loss."

"That's right." Izumi smiled at Sudo Yunzo and said, "Thank you for your advice. Well, as a thank you, is there anything we can do for you?"

"No need for help, just answer a question for me." Sudo Yunzo snorted and said, "Have you seen any strange stones?"

Upon hearing this, Conan and Ai's pupils shrank suddenly, and the children subconsciously raised their heads and looked at Quan Yi. Sudo Yunzo couldn't help but squint his eyes when he saw this scene.