"Report Officer Twilight! We measured and found that the estimated focal length of the reading glasses fragments that fell from the scene was very small, which is very strange. ”

"That's right." Conan, who was eavesdropping on the sidelines, smiled successfully.

The moon emitted a white glow that shone on the roof of the building, including those who were watching the police work.

"Are you back?" Kojima Mizuse's face was full of smiles, and he said to the young detective group that had been assembled. However, he felt that the eyes of these children were different from before.

"The case has been solved." Conan said with a little seriousness.

"Oh? Do the police know who the arsonist is? ”

"No, we unraveled it." Conan said with a weird smile at him.

"Huh?" Kojima Shui Se showed a blank expression, as if he didn't understand what Duoduo was trying to say.

"A remnant iron rod was found on one of the bookshelves at the scene of the crime, but this happened to be on the Kong Ming lantern."

"You want to say that this was an accident caused by a Kong Ming lantern?"

"No, it's not an accident, it's man-made!"

Artificial! These kids don't seem that simple!

"Mr. Kojima-sama, you must have been shocked by our answer, right? Because that arsonist, that's you! ”

！！！

The water color of the island suddenly turned pale, as if it was a dream. When he came to his senses, there were already a few beads of sweat left on his forehead.

"You, what did you say? Did I hear me right? Kojima Mizusei thought he had misheard, but the kid did say that, "You said I did it, little brother?" But I've been staying here all along, so you're thinking too much, can I still control the Kong Ming lantern? ”

"Of course you can control it, that is, use your toy plane."

The island was shocked again, but he remained confident.

"Do you think it's possible? If I really try to use an airplane to control the Kong Ming lantern to light the bookshelf, what should I do? (1) If I want to control the Kong Ming lantern, I have to attach it to the plane, but then the plane can't break free. Even if the plane does fly back after the fire, it will leave the melted wreckage of the plane at the scene, not to mention that the plane I have on me is intact. Second, there are countless people in this building and the people on the street below, you can ask, surely no one will see a Kong Ming lantern flying to the scene of the crime, although everyone's attention is in the air, but this is too risky. You'd better stop playing detective games, okay? ”

"I'm quite confident, so I'll explain them one by one according to the reasons you just said." Conan continued to attack, "You are right, it is simply impossible to fix the Kong Ming lantern on the plane. However, there is a way to control the lantern without having to fix it – put the plane inside the lit lantern and control the aircraft remotely because the propellers of the aircraft you are using are smaller, so they don't get stuck......"

Before Conan could finish speaking, Kojima Mizusei interrupted: "Whimsical, how do you make it land if you put it inside?" The Kong Ming lantern keeps going up, and if it is not fixed to the plane, it is easy to fly out of control! ”

"What's the hurry, I was about to explain this. You should know the principle of the Kong Ming lantern - the flame causes the air inside the Kong Ming lantern to be heated and expand, and a part of the air escapes, which will make the gas density inside the Kong Ming lantern less than the air density, and the Kong Ming lantern can rise under the action of air buoyancy. But what if your plane can cool the gas inside the lantern a little bit, but not extinguish the flame? ”

Hearing this, Kojima Shuise's face turned pale again, and this time he didn't look so confident.

"That's right, your plane has a jet pipe, which is originally used to accelerate, but it can spray cold air to cool the gas inside the Kong Ming lantern, and according to the thermal expansion and contraction, the gas from the outside enters the Kong Ming lantern, so that the density will not be much different from the outside world, plus the effect of gravity, the Kong Ming lantern can slowly descend. The plane then slowly pushed the lantern forward inside, so that it could fly diagonally downward. If you accidentally fly low, you can use the remote control to stop the release of cold air and make it rise. After that, the Kong Ming lantern was controlled to enter the bedroom, and the flame of the Kong Ming lantern was used to burn the book, causing a fire, and the bookshelf was just opposite the window, so it was predictable that the bedroom could not be seen. The plane can be easily flown out after ignition and detour back to it. I felt a little hot when I was hit by your plane, and I thought it was weird. ”

"Hmm...... It did look interesting, but no one saw a Kong Ming lantern flying in. What you said still doesn't hold water. ”

"No, you used a trick to wrap the outside of the Kong Ming lantern with a bunch of cardboard in your bag in advance, because it was getting late, and the black cardboard was neither transparent nor reflective, so that others would not see it."

"Hahaha, it's really imaginative, but then I can't see the Kong Ming lantern, so how can I control it?"

"No, you can see it, but it's just a small point of light. After wrapping the cardboard with adhesive tape, you dig a small hole in the cardboard at the top, and the light of the Kong Ming lantern can be seen through the small hole, but this will only form a point of light, and even if people see it, they will not suspect it, they will only think that it is a firefly. On this windless night, the Kong Ming lantern will not rotate on its own, so naturally you can determine the position of the Kong Ming lantern according to the light point. ”

"Is that so? If you completely wrap it in black cardboard, how can the outside air come in? Then how do I get the Kong Ming lantern to go down? How do you light a book when the fire is inside? If you force it to drop it internally, isn't it the same as fixing it? You're contradictory to say that, so this technique doesn't hold up at all. ”

"Don't be in a hurry to deny it. Because you don't wrap the underside of the flames with cardboard, you just use cardboard to confuse the people in the building. But in this case, people on the street may see the Hung Ming lantern with a relatively large flame in the sky. Therefore, for the sake of prudence, you have resorted to another trick - if you fix the convex lens lens with a very small focal length under the flame, the flame will be outside the double focal length of the convex lens, and the people below will see that the flame above will be very small, and they will naturally think that this Kong Ming lantern has risen very high, so they will not doubt it. The evidence is the fragments of reading glasses that fell from the scene. You bought a Kong Ming lantern from an old lady on the street this afternoon, and you made it yourself. So, can you hand it over? ”

The island was speechless, and his face was pale, like moonlight. It was amazing to be seen by a child how carefully prepared he was!

"The modus operandi has basically been explained. Here's a look at your crime – first, you must have been on this building with a telescope to observe his home. According to my speculation, you find that his bookshelf is layered, but the suspense mystery novels on the upper layer are covered with dust, and the bottom layer is clean, so you think that Mr. Zhu hates reading mystery novels, and he won't even flip through them. And you find that there are only a few mystery novels on the top layer, and you start to prepare this plan. You give him "Sherlock Holmes" anonymously first, and he doesn't think about anything, just put them on the top level. You added some oil to the book in advance to make the Kong Ming lantern light the book better. The evidence is that your consumption records were found in the Rice Flower Town Bookstore, and it happened that there was a copy of "Sherlock Holmes Detective Book" in it. ”

"Then tonight, after you have prepared everything for the Kong Ming Lantern technique, Mr. Fushimi will also go out for a walk with his family according to his usual routine. So you go to the top floor opposite the community, smash the windows of Mr. Zhu's house with ropes and heavy objects while people are not paying attention, and deliberately leave rope traces on the railings, and then return to the building to start your Kong Ming lantern technique. This is to confuse the police, let the police fall for you, go and investigate the people who were at the top of the community at the time, and you have a full alibi! After igniting the fire and flying back to the plane, you came to us again to use us as a tool to make an alibi, so that no one would suspect you. Am I right, Mr. Kojima? ”

The water color of the island has collapsed......

"Indeed, you are right. But I just want to teach him a lesson! I am an upper-level employee at the zoo and run a 'dog home' on my own. But this guy came to my store that day to bully someone else's foster dog with me, and even broke one of the puppy's legs! However, he did not apologize, but said, 'It's just a cheap life, what's so pitiful?' I hate this sentence to the core! Animals are our friends, and they also have meaning in this world. The relationship between man and animal can no longer be that of prey and hunting, of stupidity and the spirit of all things. Despise and trample on is pathetic, ignorant, contemptible. ”

Indeed, the nobility of life does not lie in a certain character, but in the fact that all lives are the same and equal. Human beings trample on other life in the universe, despise them, and even pity them with condescending arrogance.

"So, I wanted to teach him a lesson in this way......"

Hearing this, Conan sighed.

At this time, Bai Ling was impassioned: "Mr. Kojima Mizuse, indeed, you really have a transcendent outlook on life, and you treat life with a fulfillment and equal attitude. People like Mr. Fushimiji are truly hateful! However, you only overlooked one thing this time. ”

Conan paused, and then Belltron said, "That is, the meaning of the Kong Ming lantern. It is an excellent traditional Chinese cultural custom that embodies the wisdom of ancient Chinese people. People put Kong Ming lanterns to bless themselves and give their best wishes to others. However, now it has become your tool for committing crimes! ”

The water color of the island "woke up" and lowered his head. I really don't like a few children: "Who are you guys?" ”

"My name is Conan Edogawa, and I'm a detective."

"We are a group of junior detectives!" Although the other three didn't understand Conan's reasoning very well, they also helped check the bookstore anyway.

"I hope you'll turn yourself in, sir." Conan finished his last sentence.

"Hmmm......"

More than ten minutes later, Kojima Mizuse stated the facts of his crime to the police and followed them.

The Junior Detective Corps watched their distant shadows fade away under the street lamp, and they also learned a lot unconsciously.

Shaohua circulated, and dreamed back several times......