The envelope and stationery are very elegant, and when you touch it, you can feel the uneven dark lines, and the edges are bronzing.

The content is machine-typed and elegantly typed. After ignoring those euphemistic points and ignoring those polite words, the two large pages that were sprinkled with joy were condensed into one sentence.

- My ancestor hid a treasure in the castle, but we can't find it, please come and help find it, if you can find it, thank you very much.

The letter also included a deposit, a detailed address map, and other items, and it was clear that the person who wrote the letter was looking forward to "Sleeping Kogoro".

But it's a pity that Maori Kogoro has ruthlessly abandoned him for the sake of his idol - even if he doesn't leave it and Conan is not there, this mystery can't be solved.

In short, what a miserable customer.

Speaking of which, I'm pretty miserable. Xiaolan and Sonoko are out shopping, Conan follows the doctor on a spring outing, and Maori Kogoro is on the way to the concert happily, only him, he can't rest for a while after catching the cat, and he has to continue to work hard.

Bai Shu played with the letter, anyway, the letter didn't say the specific time, he simply knocked on the potato chips, watched the TV for a while, and waited for a customer to come to pick up the cat, then reluctantly changed into light sportswear, ready to go out.

Kogoro Mori had taken the train, his car was parked in front of the door, and the keys were left on the shoe cabinet.

Shiraki got the key, followed the map, and drove to his destination.

The castle was surprisingly far away, far from the suburbs, and if it weren't for the fact that a photo of the castle was attached to the letter, Bai Shu would have suspected that the client's ancestors had hidden a mine for their descendants in a natural scenic spot.

The car meandered for more than an hour, and before you knew it, the surroundings were completely like a deep forest, and the lane gradually changed from asphalt to cement, and then from cement to dirt road.

- I don't know how this family usually goes out into the city, or maybe they are rich enough to stay at home every day without having to travel.

It soon darkened, not only because it was dark, but also because dark clouds were gathering in the sky.

Soon, small plows of rain trickled through the foliage and landed on the car window.

The white tree turned on the wipers and watched as it turned from drizzle to moderate rain and finally poured down. When the dirt road began to get muddy, he finally saw a castle through the cascading foliage.

This castle is not left over from modern times, but was built later, the main body is basically the traditional castle image, and there is a tower extending on the left, the top of the tower is charred black, at first glance it looks like a haunted house.

The outermost layer of the castle is surrounded by a fence with sharp tops.

The white tree drove up to the fence and found a manicured clearing on the side of the gate that could be used for parking. At this time, there is an old Beetle car parked on it, which does not fit the style of the castle painting.

When passing by the car, Bai Shu probed to look inside, and through the trunk, he could see that there were some barbecue grills and small school bags and other things in the car, and there was no one inside.

He stared at the familiar car and thought for a moment, then took out the letter, looked at the signature at the checkout again, and suddenly realized.

"Fortunately, I didn't laze the pigeons of the customers. Hard-working people are lucky, and the ancients don't deceive me......", he muttered and took out an umbrella from the shelf, stepped out of the car and opened it.

The air in the forest was very fresh, the ground and the gate were wet and damp, and Bai Shu jumped over the puddle in a few steps, walked to the waterproof doorbell and pressed it, and after ten seconds, someone picked it up.

A middle-aged man's voice came from the earpiece.

Shiraki reported the name of Mori Kogoro, and after a while, he saw the castle gate open and someone walking all the way.

It was a man in his fifties, well-dressed, with a wide face, eyebrows and beard that had grown into a downward slashing figure-of-eight appearance, like a low-profile version of Lu Xfeng.

He pressed the remote control, opened the iron door, and reached out to shake the white tree, "Welcome, I'm the palace man, that ......"

The man craned his neck, looked behind Bai Shu, didn't see anyone else, and wondered, "Excuse me, what about Mr. Maori?" ”

"He encountered a murder case on the way here, and he is busy solving the case, and he will rush over when it is dealt with."

Bai Shu came as soon as he opened his mouth, anyway, there was a murder in Rice Flower Town every three or five times, so he didn't have to worry about this lie being discovered. And there is no need for Maori Kogoro to appear here, and the "treasure" of this house is not difficult to find.

His expression was so natural that he didn't doubt it, he nodded and sighed in disappointment.

If you encounter a murder, there is really nothing you can do, but fortunately, this mystery of his family has been left for many years, and he is not in a hurry.

Mamiya quickly cleaned up his mood and said politely, "Please come in first, I'll show you around our castle." ”

From the outside, the castle has a strong European style. The lawn in the courtyard is built in the shape of a Western chessboard, and many one-person-tall stone chess pieces are placed on it, and the black and white colors are staggered to form a strange pattern.

"It's a strange design, isn't it?" , Mamiya Mitsuru noticed Shiraki's gaze, and he explained simply:

"These are the last words left by the old lady when he passed away 15 years ago, and he asked us to keep this 'chessboard' as it is. In addition, he also said that he would give the treasure to the person who solved the mystery of the castle, so we all felt that the clue to the treasure was hidden in this game of 'chess'. ”

He paused slightly, so that Bai Shu could check his surroundings, but he didn't stop for long:

"I can't see anything famous from this angle, I'll take you upstairs to see, if you look down, the pattern will be clearer."

At this point, the sun has completely set.

Mamiya walked up to the high second-floor window and looked down to see that the plan was not working.

- Although there are a few stone street lamps installed in the courtyard, the light is still too dim, and those black chess pieces seem to be crumpled and melted into the night.

"Tsk, I don't have any lights in my house...... Why don't you stay here for one night and wait for the Maori teacher to come tomorrow and then investigate together? We have a lot of guest rooms, and there are a few passers-by who come here to spend the night today. ”

As soon as he turned around from the window, he saw Shiraki bowing his head slightly, staring at a notebook spread out in his hand.

The style of the book is ordinary, the color is even more ordinary, and nothing is written on the page, but for some reason, the young detective looks at it very seriously, as if it is really written on it.

Looking at this scene, he felt a little strange for no reason, he touched his arm and cleared his throat, "...... What's wrong? ”

"Oh, it's fine."

Bai Shu came back to his senses, closed his notebook and smiled at him, "I just think this puzzle is very interesting, today is really the right one." ”

The palace couldn't see it, but in Bai Shu's eyes, there were more than ten names densely written in the notebook.

It's simply ......

It's his paradise!

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