"Then I put the Japanese sword that was used as the murder weapon against the rubber band. The sword is just used to tie the rubber band. It feels like it should be closer to a slingshot, or a bow that uses the Japanese sword as an arrow."

Everyone gradually saw the final conclusion of Kyoko Kirigiri's explanation.

"Finally, lengthen the wire and let the other end pass through the backyard, over the fence, through the bamboo forest, all the way to the top of the cliff, and tie the weight I just mentioned here."

"Tie the metal wire firmly to the heavy object, and then kick the heavy object down to the bottom of the valley. Then the heavy object falls into the river and floats in the rapids, pulling on the metal wire."

"This pulling force becomes the force of constantly pulling the bow. But the Japanese sword turned into an arrow will not be shot out immediately because it is blocked by the icicle at the other end of the wire."

Wu Yuyue finally had a panoramic picture in her mind from Kirigiri's description.

The principle is very simple. For example, the door and the rubber band are a bow, and there is an arrow on the bowstring. This arrow is a Japanese sword.

The thing that pulls the bow is the weight on one end of the metal wire, and the icicle is a delay device that prevents the arrow from being launched immediately.

"At this time, you can take out the jack stuck in the door, and the force of pulling the bow will become the force of holding the door."

Thus, from the water wheel to the sword dojo, from the backyard to the cliff, the installation made of metal wires was completed.

"The coil attached to the icicle is continuously pulled, allowing the ice to melt little by little. Ice has a characteristic that it melts when pressed. However, the wire will not cut the icicle quickly because it is cut by the wire.

The open area will be frozen immediately and closed again."

"And the metal wire is almost completely sunken into the ice, moving slowly towards the other end of the icicle. Finally, when the metal wire comes out of the icicle - the force holding the knife in place will disappear, and the rebound force of the rubber band will

The murder weapon will be ejected."

While everyone was observing the situation inside the door, the murderer had been waiting for the moment when the Japanese sword was launched.

"But...how to aim at the target?" Yu suddenly thought of something and couldn't help but ask like a curious baby, "How could a Japanese sword hit the victim by such a coincidence?"

"This is when the armored warriors need to be used. Those two armors are not just props used to create the terrifying atmosphere of the haunted house murder case."

"...What's going on?"

"Aren't the armored warriors standing side by side in the center of the room, one on the left and one on the right? And the victim fell in front of the armored warrior. So let us imagine what the scene was like not long ago when the victim was not dead.

What? I said, Sister Yu, I have already mentioned this, you should understand, right?"

"Ah...could it be that-"

The two armored warriors both kept their elbows bent. If the victim had lost consciousness at that time, then the two armored warriors should be able to hold the victim's armpits and force him to stay upright.

"The armored warrior is a bracket that holds the target in place, right?"

"That's it. The reason why there are blood stains on the armor must be because the armored warrior was supporting the victim at that time."

The victim was stabbed with a knife and his body fell forward due to the force of the impact.
Chapter completed!