Friday, April 15, night, Angel's Pavilion.

When you find a black crystal, the question arises, where should this black water be used?

Oda Nobue said: "Okay, scan the size of this black crystal and pair it with the Angel Valley building data we collected to see if we can find a place to put it."

"It must be the Higashinoka," said Maori, "so we don't let you go in, and there is the little Taurus without a horn on the fireplace."

"That," Conan raised his hand and said, "the cow in the puzzle may not refer to real cows, but to the Chinese character "ox".

"The word "niu?" Yuan Tai was puzzled.

"This is it." Mitsuhiko gestured for a moment.

Yamazaki said: "In this way, the disappearance of the cow's horns refers to the word "wu". Wu of the twelve earthly branches refers to the south."

"The first sentence is to say Nanzhiguan." Lan said.

Oda Sakurako said, "In this case, the second sentence 'When the tail becomes the head' refers to Kitanoka. The head faces south, and the tail naturally faces north."

Haruko Oda pointed out: "Wait, is this 'time' in the 'time when the tail becomes the head' referring to time?"

Maori pondered: "The noon of the twelve earthly branches refers to the south, Zi refers to the north, and Zi is at twelve o'clock in the middle of the night."

Haibara looked at the detective watch, "It's less than an hour before midnight."

"Okay, then everyone will continue to take action and search for the venue buildings they are responsible for. The exploration teams around the world will continue to work hard, and don't take it lightly."

"yes!"

Oda Nobue continued to operate through the radio, while Maori, Ran, and the Youth Detective Group all went to Kitanoka.

Nobue Oda learned from people who are doing data analysis that one hour is not enough to pair all of them.

"Okay," said Nobue Oda, "in terms of data, first match the Kitanoka, then match the Higashinoka." Then he said with some worries, "If I had known that time was so tight, I should have brought a computer car to analyze the data specifically. Now it is too late to send the data back through the satellite network, and it is not enough time to send it back directly."

Oda Sakurako smiled bitterly and said, "Who knew that there was only 10m dedicated line here, only one-tenth of our satellite network," then added, "But from this point of view, Mr. Takazo Isekawa really no longer plays investment in person."

"Hehe," Haruko Oda looked at Yamazaki, "Sir, how about using your permissions to open a faster satellite network dedicated line? Anyway, someone pays."

"Yes." Yamazaki smiled, "If this mission fails, it will be the three of you who will bear it."

Oda Nobuoya said itchy: "Ha, I'm so angry when I talk about this. Lord Feng actually assigned this task to us directly."

"Who told you to be lazy?" Yamazaki smiled, "Now, as long as the mission fails..."

Oda Harukoya said itchyly: "Master Feng has an excuse to throw us into the Antarctic and go to play with penguins, which is more boring than the Arctic."

Oda Sakurako said, "Actually, I want to go and see it, it should be very interesting."

"Which side of you are from Sakurako?"

"I'm telling the truth. Haruko, you want to go too, don't you?"

"Traveling is almost the same. I'll be so boring that I'll be so bored for a quarter."...

Talk about Antarctica, the data was transmitted to Shi Feng Bao's host through the satellite network, and it was all done in a few minutes at an average speed of more than 1g per second.

Haruko Oda said enviously: "Ah, when can we use this speed?"

"This is actually a temporary squeezing of speed for other users, and it is a priority issue." Yamazaki smiled. "After the new generation of satellites are enabled, with your permissions, you can easily reach this speed when the system is idle, which is enough."

Oda Sakurako said: "Well, it turned out to be there, there was no match. There was no small space in the entire building complex that matched the black crystal."

Haruko Oda said: "The data will not be wrong, then it means that our data is insufficient."

"The scanning board of the ray car can only be lifted to six meters, nor can it scan into underground space. The drone is not enough in terms of details." Yamazaki said, "I suggest that the drone take a group of multi-angle shootings over various buildings."

Oda Nobue smiled and said, "I think so too."

Nobue Oda ordered the drone to take photos and scan the buildings from multiple angles, and then transmit the data back to the host computer protected by Shifeng again.

Not long after, the result came and found a place that matched the black crystal, on the searchlight of the Higashi Pavilion.

On the way to Dongnoka from the underground maze, Maori, Ran and the young detective team came to meet, as well as Yuriko Matsuaka and Secretary Zhong.

Dongnoku Hall.

There is a gap in the mirror of the searchlight on the rooftop, which is suitable for placing black crystals, which is completely consistent.

And with the addition of black crystal, the searchlight shines on the ground with a dark shadow.

"So that's it, this is the flute." Maori said with a toothache, "but no matter how you look, how it looks like..."

Lan Jie smiled and said, "The Horn."

Haruko Oda asked, "Secretary Zhong, didn't you mean it was wrong?"

"How is that possible," said Secretary Zhong, "I don't know that there is this black crystal."

Oda Sakurako said, "I believe this, because no one has ever entered the secret room of Minami Pavilion before."

Yamazaki said: "The underground maze should have been dug early in the morning, and the secret room and searchlight in the Minami Pavilion should have been made by someone else later."

Nobue Oda said: "Indeed, the secret room in Minami Pavilion is based on an underground maze, and the project volume is not large, so this searchlight is even simpler."

Next to the exploration team captain Katayama Masahiro couldn't listen anymore and interrupted.

"This shape, according to these architectural styles, may be the Italian Ocalina flute, which is generally called the earth flute in my country. In 1928, it was introduced to my country by Akita Kawa Takashi of the Tokyo University of the Arts to transform the twelve-hole pottery instrument."

Everyone was sweating profusely, it turned out that they were making a mistake.

Maori changed the topic, "The question now is where this searchlight should be shining."

"Northien Pavilion, uncle, Northrain Pavilion." Conan said.

Yuanta asked, "Why is Kitanoka?"

Mitsuhiko said, "Of course it's the position of the oxtail."

Maori blushed in embarrassment and argued: "Of course I know it's Kitanokuen, I meant to take something."

"Really?" Azumi looked disbelieving.

"Only he knows this," Haibara said.

"These little ghosts." Maori pretended not to hear it, and shone the searchlight at Kitanoka.

Conan reminded: "Try to the angel's mouth, uncle."

"I know!" Maori shouted at Conan.

The magic sound penetrated the mind, and Conan retreated with his triangle eyes.

Mao used a searchlight to shine the mouth of the angel in the Kitan Pavilion. The shadow of the angel and the shadow of the black crystal looked like an angel standing on the ground playing the flute.

"The angel fell down and played the flute. That tune was my treasure." Maori said excitedly, "The treasure is in the flute."

Yuan Tai asked, "Didn't you say you have to wait until midnight?"

Conan said: "That's why we thought too much. It starts at 9:00 pm and ends at 9:00 the next day. There is only one chance at twelve:00 pm. No one can solve the puzzle in three hours."

Mitsuhiko asked, "Don't we just unlock it?"

Haibara said: "If there weren't so many people, the road from the underground maze to the East Nobunaga would have to be explored for a long time."

"That's true." Ayumi replied.

While speaking, the searchlight was fixed, and everyone rushed from the underground maze to the dark shadow of the flute.

When everyone arrived, an exploration team had arrived.

Nobue Oda asked, "What's the situation?"

Captain Yamada Masaei shrugged, "The portable detector has no response. If there is a treasure, it will be less than ten meters underground. If you cannot dig, you can only wait for the satellite to pass tomorrow morning."

Maori asked, "The building over there is..."

Captain Yamada Masaei said: "That is a forest hut. We checked it. There is no underground space. The only possible passage should be through the underground maze. It is either from the main hall, the Bullfighting Hall or the East Hall that idle people do not enter."

Oda Sakurako agreed: "Well, it makes sense. The fewer people know this thing, the safer it is."

Haruko Oda said: "However, in terms of project volume, the Higashinokuan is most likely."

Nobue Oda said: "Forget it, let's take a break, keep your energy up, and wait until tomorrow's satellite data comes out."...

The next day, Saturday, April 16, morning, Angel's Hall.

Yamazaki got up and took a bus back. Now the overall situation is settled. There is no need to stay here anymore. It is better to go home early so as not to be muttered by Midako. I will be in the game today...

In the morning, Angel's Hall.

When the satellite passes over the sky, the data is transmitted back to the host of Shifeng Preservation, and then the analyzed finished products are transmitted to the satellite cart to avoid delaying the calculation time.

The underground space data diagram of Angel Valley has come out, but some places are not complete.

The diagram of the underground maze is basically clear, and near the forest hut, there is only a diagram where the angel fell, there is space there, and no detection of how deep it is.

However, the place where the angel fell, the passage to the underground maze, and the diagram from the entrance to the Bullfighting Hall were marked, which was enough.

Finding the access port in the underground maze is part of a section of the wall. Pushing hard can make the wall flip. Behind the wall is an abandoned sewer that can accommodate one person.

There is a lot of dust and a lot of footprints.

Haruko Oda asked, "Secretary Zhong, someone has discovered it here?"
To be continued...