"......" Qianyu looked at the file in his hand about the mahjong card serial murder case, thinking about the clues.

Judging from the letters on the back, the murderer should have wanted to use eight mahjong tiles to represent some words - in addition to the current upside-down L used to represent the beginning of the [, there should also be an upside-down L used to indicate the end of the word]. The remaining six tiles on A, A, E, H, Z and a certain letter should form a word that expresses the murderer's desire to commit the murder.

Unfortunately, the auxiliary unit does not have the ability to recognize text, and there are no modern words with six letters that have such a strange match. (Mainly there are z and the first few words are too rare, and z is more common in Old English)

Wait a minute, in addition to the letters that may express the appeal, it seems that the murderer also deliberately took it to the place where the body was found after the murder to dump the body...

So, what do these locations represent?

Taking out a detailed map of Japan, Chiba began to mark the locations of the bodies found in the file.

Considering that there is no regularity in the locations of these crimes, it is almost certain that the connection between these points can only be discovered by macroscopically connecting them on a map at the level of the Kansai region.

However, the problem is that the map of the Kansai region is only printed on a single piece of paper, so its accuracy simply cannot support the act of directly marking the location of the crime at the macro level. Therefore, Qianyu can only be recorded from the map records of each county or even the city level one by one, and then the results can be obtained by calculating the latitude and longitude marked on the edge of the map in the auxiliary unit.

Then, Qian Yu discovers that the final result of these six points on the map is not regular, and it is not the six points that any well-known seven-vertex pattern belongs to, and it is not - wait a minute?

Just after Qian Yu retrieved all the patterns composed of seven vertices in his mind and confirmed that they did not match the relative positions of these six points, the additional search function of the auxiliary unit directly found a pattern that matched more than 90% of these six points in the local resources of the auxiliary unit - and the main mismatch was due to the mismatch in the position of details, if the six points were slightly corrected, the matching degree with this pattern was almost 1!

In fact, the additional search function is generally difficult to search for anything useful, after all, it is only a function to search for the preset military-related super mini knowledge base inside the auxiliary unit, and these things are of little use in the life that Qian Yu can come into contact with. But this time, the additional search function really found what Qianyu was looking for, and the reason was very simple.

The matching results of the search results show that the positions of these six points almost coincide with the relative positions of the North Star and five of the Big Dipper, and the Big Dipper and Polaris are the main tools for determining direction with the help of the starry sky - this will of course be included in the preset content by the auxiliary unit, and will naturally be within the search range of the additional search function.

So, the remaining two points that are not marked are where the next two cases could have occurred?

The approximate coordinates of one of them are near the Maritime Self-Defense Force Air Base (Atsugi Air Base) in Ayase City, while the other is near Shiba Park in Tokyo.

"......" Qian Yu glanced at the two coordinates, and then remembered what Matsumoto Kiyocho had told him before.

————

Managing Officer Matsumoto didn't ask Chiba and Ash Hara too many questions, but only asked them to recall the scene at the time, and then gave them a detailed summary of the two sets of serial murders, and vaguely expressed the hope that they could look for clues hidden in them, and once found, contact him directly through his mobile phone.

…………

It's right next door to the Tachibana House, in the Kudo House.

"Huh?" A figure who was holding a book and preparing to leave the main entrance suddenly stopped, then looked into his pocket, and then took out a mobile phone from inside———— with the sign "Juice" on it

"The places of death of the six deceased who had mahjong tiles around coincided with five of the North Star and the Big Dipper, and there is reason to believe that the two remaining potential dead would be killed in the remaining two locations."

"Oh?" Matsumoto raised an eyebrow—or perhaps Irish would be more appropriate at this point—to raise an eyebrow. "This guy is quite capable, isn't he?"

If this is the case, it is better to let the people of the organization set up control in advance, as long as they can catch the murderer dragging the body in any of these places, they can get the token before the police.

However, it is not this matter that should be dealt with now, but ......

Irish looked at the book in her hand, the corners of her mouth slightly hooked.

…………

In one office, Matsumoto Kiyocho placed a plaster cast on a scanner, read out the fingerprint scan, and then placed the book on the scanner.

Just then, his phone rang again.

After seeing Gin's name on his phone, Matsumoto Kiyocho frowned slightly, and then connected the phone. "Hello?"

"Where have you been?" Gin's cold voice came. "I haven't been back to my residence yet, so it doesn't seem like something that can be explained without a legitimate reason, right?"

"Are you suspicious of me?" Matsumoto Kiyoshi snorted coldly.

"Forget it," Gin said he didn't doubt Irish's loyalty, and then changed the subject. "How's the case going on over there?"

"There are some clues," Matsumoto Kiyoshi said perfunctorily, looking at the computer that had already completed the fingerprint scan of the scanner and was comparing it in the computer. "Considering that the police have intervened, I may need the manpower help of my own people, because the Metropolitan Police Department is no longer under my control."

"What's going on?" Gin frowned.

"The police took over our physical evidence identification work, and it is said that we have the approval of the State Public Security Commission above."

"......," Gin on the other side of the phone was silent for a moment before continuing. I see, so what kind of help do you need? ”

"Controlled in Shiba Park in Tokyo and Ayase Park in Kanagawa, we now suspect that the killer may have taken the victim there to dump the body." When Matsumoto Kiyocho said this, he suddenly found that the computer's evaluation had come out.

[Matching: 98%]

"Oh yes," a smile suddenly appeared at the corner of Matsumoto's long mouth. "Gin, do you remember Shinichi Kudo?"

"Who's that?" Gin asked.

"That high school detective, the one you killed with that drug." Matsumoto Kiyoshi reminded.

"I drugged you to kill you?" Gin frowned slightly, and then relaxed. "You should know, right? I never remember the names of the people who died at my hands—I killed so many people that I couldn't remember them even if I wanted to. Forget it, I'll hang up, I'll give you the contact information of my subordinates later, and you go and give him an order directly. The password is 'Everest'. ”

With that, he hung up the phone, leaving only Irish with the phone still in his hand. And on Irish's smiling face, there was murder.

"Should some of you count the sins you have committed?" Irish muttered.

“Gin！”