……

After his words, Officer Shiratori felt that the sweat on his forehead had not stopped, and his hair felt a little soaked with sweat.

"But~~~" Hearing Officer Shiratori say this, Takagi disagreed a little, "When we first entered here, the door to the living room was originally closed. ”

"A murderer who escaped in a hurry, would he deliberately pay attention and close the door?"

Hearing Officer Takagi say this, Miwako Sato also recalled what she looked like when she entered this house, and said in a somewhat low tone.

"And we suspect the murderer, the window that entered the glass was cut. The same goes for the locks on the windows, the locks are fine. ”

“……………”

Looking at Officer Shiratori's appearance, Conan also began to fall into the ground. "Uncle, you're starting to feel something wrong now."

Speaking of which, Conan looked back at the chubby person in charge with a strange gaze.

"Suspicious of this place from the beginning. No one has been there except for the victims. Isn't that weird? ”

“………………”

was conan, a little ghost, and looked at it in a cold sweat. But the chubby person in charge, obviously with good psychological qualities, stood there pretending not to understand anything, and it would have been better if there was no cold sweat on his forehead.

"This little brother is right, it seems that we need it. Carefully inspect the house again. ”

Hearing Miwako Sato say this, Officer Shiratori was a little unhappy. "You mean that at the time of the crime, there was indeed only one victim in this house."

The murder weapon flew towards her by itself. What about the last stab the victim in the back, causing her to die unexpectedly? ”

Speaking of which, Officer Shiratori looked a little speechless, still insisting on his own opinion, believing that the victim was killed by the murderer who entered the house from the outside.

"If that's the case, you should have discovered that kind of mechanism when you found the body in the first place?"

"Ahhh

At this time, our Conan child suddenly ran to the side of the treadmill, pointed to the part of the bicycle, and asked with a puzzled face.

"It's weird, what the hell is this line?"

"What~~~"

For Conan, a little ghost, three times and two discoveries, and occasionally some important information, Officer Shiratori felt that his heart was a little unbearable.

"What kind of line are you talking about?"

"See for yourself~~" Conan said, pointing to the bicycle, "You see that there are several turns in here, and it looks like something like a kite string." Right? ”

"Yes~~~" After a closer look, Officer Shiratori also found out, just as Conan said.

"It's really a coil of thread on this!"

"Do you know what these lines are all about?" After seeing this suspicion, one of the questions asked by Miwako Sato was the chubby person in charge.

"I don't know~~~"

If you listen carefully and carefully, you will know that even if the chubby person in charge has not changed color, his voice is obviously much hoarse.

"I think it must have been when packing, the thread used, or something rolled up!"

As for Officer Shiratori, until now, he still thinks that his wrong reasoning is correct.

Conan sighed helplessly in his heart, pretended to be a curious little ghost, and pulled the thread out of the bicycle.

"But, uncle, look at the end of the line."

Not yet, before he could finish his words, Conan saw that the other officer in charge of the Shiratori police officer was full of unhappiness, and he didn't pay attention to Conan's ** at all, and in desperation, he had to say to Miwako Sato.

"Auntie, there's a small circle tied to this."

"It's really yes~~~" After a closer look, it's indeed the same as what Conan said.

"It's a little weird to say that it's used to hold a package."

"That's right~~~" At this time, the chubby person in charge pretended to be suddenly enlightened. "After that, when you mentioned that, I remembered."

"About half a year ago, I had a few friends' children who came to live at home. I still remember when they were around this bike, playing games. ”

"I don't think it's good, it's just that they're playing a prank, so this thing is left behind."

"In that case~~~"

Looking at Miwako Sato, still thinking about the clue, Officer Shiratori said comfortingly, "It's a waste of effort to think about it now, it's just a kite string, what can he do?" ”

"Please wait a minute~~~~~"

Officer Takagi, who hadn't spoken since just now, finally figured out what was going on after hearing Hyaktori say that it was a kite string.

"I'm guessing ~~~" Looking at Miwako Sato, looking at herself, Officer Takagi felt that he was stammering a little when he spoke.

"I'm just assuming, murderer, if it's on the top of the bookshelf, with duct tape and something, after fixing the knife."

And then. Then tie the kite string to the axle of the bicycle. The victim just kept pedaling the scooter. ”

The thread would slowly roll, and eventually the bookshelf would fall down. In this case, can the knife automatically stab the victim in the back? ”

“………………”

"It's an interesting idea, but is it really going to work this way? Isn't the other end attached to the bookshelf? ”

Although everyone was very surprised, Officer Shiratori denied this method at the first time. Provide himself with a strong conjecture, but before he could finish his sentence, the Miwako Sato spoke.

The probability of this statement is indeed very high, because next to that shelf, there is another bookshelf full of books. So we can determine the direction in which she fell. The victim he wanted to murder must have been sitting on a bicycle. ”

"At that time, the victim was just right. I can't see this bookshelf falling. ”

"But the pedals of the bicycle suddenly become heavier, even if the victim doesn't notice it, he will definitely feel that something is wrong."

Looking at Officer Shiratori. Saying such a dizzy word, Miwako Sato said with a smile.

"Why don't you know? A bicycle like this is originally designed to slowly increase the load on the athlete. ”

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