"The place where the bomb was planted was neither under the seats of the Circle Line train, nor on the shelves, nor under the body! It's between tracks! ”

"Between tracks?"

"That's right! Those bombs will explode if they don't shine for more than a dozen seconds! When a loop train passes over a bomb, the light will be obscured for a few seconds until the entire train has passed! If the length of a car is 20 meters, ten cars are 200 meters, and a speed of 60 kilometers per hour is equivalent to a speed of 16.7 meters per second, which means that it takes 12 seconds to travel 200 meters! ”

"The maximum buffer time for a bomb to detonate is the time it takes to pass at a speed of 60 kilometers per hour, so please move the loop train to a different track immediately, and if you let the train leave the loop track, there will be no danger of stopping!"

"I see? Minister Sakaguchi, did you hear that? You've got the solution you want! It's up to you whether you want to do it or not! "The Twilight Police Department, who had just been trained by Minister Sakaguchi as a grandson, immediately stiffened his waist after receiving the reasoning support of Kudo Shinichi.

"Yes! I understand! After 3 minutes, turn car No. 11 to the cargo line at Shibahama Station! Start preparing now! Minister Sakaguchi, who knew that there was not much time, did not hesitate at all, knowing that his future might be gambling on this phone call, although he didn't trust this high school student named Kudo Shinichi very much, but seeing that the Maori Kogoro who was still clamoring just now had died down, he still gritted his teeth and decided to make such a crazy bet.

"Car 11, car 11! Switch tracks after 3 minutes! ”

"Shibahama Station confirms the start of the track line connection!"

"The freight train moves to the emergency evacuation track as soon as possible!"

Just when Conan once again played the role of the savior to solve the bomb game on the loop, Yuichi, who had joined Takagi and the bomb disposal team and his policemen, marked the place where Teiji Moriya buried the explosives on the floor plan of the Moriya Mansion drawn by himself, and took the bomb disposal expert to turn in from the backyard and investigate the field, and after confirming that it was foolproof, he took Takagi and several policemen to step into the Moriya Mansion through the front door.

"Butler Tanaka? I visited in the morning, you should still have an impression, right? We have some questions about the recent arson cases that we need to check with Professor Moriya, he should be there, right? The car on that side hadn't been seen when it came in the morning! If I'm not mistaken, it's Professor Moriya's car! You're not going to tell me he's not home, are you? As soon as I entered the door, although I was a little surprised that the Tanaka housekeeper didn't leave, but the acting skills still got a little bit of the true inheritance of Kiko, Yuichi immediately hid his inner surprise, and asked Tanaka the housekeeper teasingly.

"Sir, he'...... It should be at home! I'll go and see, people are old! Some things just can't be remembered! Excuse me! Officer Kudo, please wait a minute! Without asking them in the slightest, the Tanaka butler smiled perfunctorily at the policemen before turning around and walking towards the main house.

And Yuichi, who was happy to buy time for the bomb disposal troops, did not express any dissatisfaction, and after politely making a gesture of invitation to Tanaka's housekeeper, he waited in place to admire it.

After a few minutes, Teiji Moriya, who had a pipe in his mouth, stood at the door of the main house with a smile on his face, "Officer Kudo! Welcome! Welcome! We meet again! Tanaka said, "You have something you want to ask me?" No problem! Come on, come on! Let's talk! ”

"Come into the house and talk? No problem! Thank you, Professor Moriya, huh? Professor! Your yard is a little deserted this afternoon! When I came in the morning, there were a bunch of servants mending the lawn nursery! ”

"Hahaha! Although I am an architect, I am very frugal in my life, and the servants are hired temporarily! I'm done and I'm going home! In fact, Tanaka is the only one at home who helps me take care of the house! ”

"I see? Professor Moriya is really low-key! While hypocritically responding to the hypocrisy of Emperor Moriya, Yuichi followed Emperor Moriya into the tiger's den in Longtan that he watched Emperor Moriya arrange for an afternoon.

"Huh? Is Professor Moriya watching the news? What interesting facts do you have to hear today? I've been busy with the case for a day, and I haven't paid attention to it! As soon as he entered the living room, Yuichi saw the big color TV on the TV stand, and asked politely after casually glancing at the contents on it.

"Ahh Oh, yes! People like to look at these things when they're old! Unlike you young people, there are plenty of entertainment! If you want to talk about big things, it's not a big deal, it's just that there seem to be several explosions, one of which even injured a child, and I don't know if it's okay, now people! Too impetuous! Not good! Not good! ”

After hearing that Emperor Moriya and Yuichi were talking about himself, he smiled noncommittally, and instead of taking the offer, he continued to follow his own routine, "Since Professor Moriya watched the news, I think you have seen several arson cases that have happened recently?" Any thoughts? ”

"What's the idea? Is Officer Yuichi playing dumb riddles with me? I don't understand what you mean? ”

"Don't you understand? All right! Let me explain it to you more clearly, except for the murder of the Kurokawa family a few days ago, there are no enemies in the other few houses! So I tried to find clues from their enemies, and I encountered obstacles in my work, so I started to find the common ground of several of them when I wanted to merge several arson cases, don't say I really found one! ”

"Oh? What do they have in common? ”

"You designed and built them! And it was designed by you before the age of 35, which caused quite a stir at the time! ”

"Oh? Is it? After all these years, I've almost forgotten it! If it weren't for Officer Youyi, I wouldn't have been able to remember this stubble! ”

"Huh? Is it? We just saw a picture of these buildings together in your private exhibition room a few days ago, right? Professor Moriya, did you really forget? Why don't we go back to your private showroom for a review? ”

"Good! I have no problem! I just don't know what you mean by this, Officer Yuichi? What are you suspecting? ”

"I suspect that the crux of these arson cases is that you designed and built these houses, and someone is targeting them, either your enemies or yourself! Professor Teiji Moriya, who pursues symmetrical beauty! ”

"Huh! Officer Yuichi's reasoning is very interesting! If you're the one who wants to ask me, I think I can take my time to remember and cooperate with you, if you doubt me! Sorry, please show the evidence! Otherwise, a few people are not welcome in Moriya House! Hearing Yuichi's words, Teiji Moriya slowly put away his smiling face, took the pipe off his mouth and fiddled with it a few times, and then picked up a beautiful lighter on the coffee table in the living room.

"Oh? Does Professor Moriya want proof? I guess there's something I'm looking for in the basement of your house, right? The explosives made by Toyo Gunpowder are completely different from the dynamite powder made by the dirt workshops outside, and as long as there is a little residue, I can determine if it is the missing batch! Seeing the bomb disposal expert who came in quietly, he nodded, and Yuichi, who drew the last card of Teiji Moriya, stopped going around in circles with Teiji Moriya, and directly pointed out the place where Teiji Moriya hid explosives.

"Oh? Going to the basement? No, I wanted to wait until Shinichi Kudo, who solved the loop riddle, came and let you witness the surprise I prepared for you, but since you performed so much better than him, I'll give you this surprise first! I'll give him another gift from Shinichi Kudo! Hahaha! Want to know the power of those explosives? Let's try it out! I hate everyone in the Kudo family who ruined my dreams! All of them! After knowing that he couldn't hide it, Emperor Moriya smiled indifferently, and suddenly pressed the lighter in his hand with a hideous face.