Ke Xue: Shinichi and I are childhood friends

Back in the dean's room, Youya made a new discovery.

There was some paint at the end of the nails on the right hand of the corpse.

"This is..." Youya frowned slightly.

Miyano Shiho came over to take a look and said, "This seems to be nail paint?"

Youya was stunned: "Nail paint? This old lady is quite fashionable, but why is it only at the end of the nails?"

"Then I don't know, maybe it was removed?" Miyano Shiho said casually.

Youya frowned and searched in the dean's luggage, but did not find the removed nails.

I can only remember this temporarily and continue to observe.

He found a little white crystal on the collar of the corpse.

Youya pinched some crystals and rubbed them, and couldn't help raising his eyebrows: "This seems to be... salt? But the corpse did not show any signs of sweating, could it be..."

With a vague guess in mind, Youya and Miyano Shiho went to the bathroom on the first floor together.

The blood in the pool was not drained, and the strong smell of blood was nauseating. There was no choice but to ask Naoki Oishi for two masks to barely cover the smell.

After a careful inspection in the bathroom, he found nothing, and there was no container that could be used to transport blood.

But he found a package of bath additives that had been opened and half used. The ingredient list showed that there was some inorganic salt in it.

It should be Naoki Oishi and his wife who used it to prepare bath water.

"So, the murderer killed the dean here and bled him, and then moved the body back to the second floor?" Yuya pondered.

The reason why there was salt on the collar of the body might be that the murderer touched the water in the bathtub when bleeding, and a small amount of salt was precipitated after it dried.

"If this is the first crime scene, how can a body be moved to the second floor without being discovered?"

With such questions, Yuya went to Naoki Oishi to ask for the floor plan of the hotel.

"Floor plan..." Naoki Oishi searched the room for a long time before he found a tattered piece of paper. "Sorry, this is the only one I have..."

Although the floor plan was a little tattered, the layout of the hotel could still be barely recognized from it.

Yuya took a pen and marked everyone's room on the map one by one.

"Huh?" Yuya pointed to a small square at the edge of the second floor and asked. The words on it were already blurred. "What is here?"

Naoki Oishi looked at the floor plan, hissed, and scratched his head hard: "This, I don't know either."

Yuya lowered his eyes and asked: "Hey uncle, isn't this your hotel?"

Naoki Oishi laughed awkwardly: "Ahaha, when I took over this hotel, I just made some repairs on the original basis, and didn't renovate it in a big way, so it's normal that there are some things in the hotel that I don't know."

Yuya looked at him speechlessly and had to go to the place marked on the floor plan to check it out in person.

There was a separate wall next to the deceased's room. Yuya didn't pay much attention to it at first, thinking it was just an extra short wall.

Yuya frowned, turned around and walked into the deceased's room, and found a square pillar at the door - at first he really thought it was a pillar, such corner pillars are actually very common.

But the floor plan also marked that there was something here...

Yuya raised his hand and knocked on the pillar a few times, and his eyes widened in surprise - it was empty inside!

Could it be that...

Yuya walked quickly to the outside of the room and knocked quickly on that section of the wall. When he knocked to the middle, a dull "dong dong" sound came from the wall, as if knocking on an iron plate.

"Mio, help me find one..."

Before Yuya finished speaking, Miyano Shiho handed him a nail clipper.

Yuya was stunned for a moment, smiled at her, took the nail clipper, then pulled out the iron sheet for grinding, and slowly scratched from the top of the wall to the bottom.

Soon, as the iron sheet slid down, a small piece of paint on the wall suddenly lifted up. Yuya raised his eyebrows, stretched out his hand and pinched the piece and tore it hard.

Hiss! A rectangular piece of cloth was torn off, revealing an iron door.

"What is this?" Yuya was surprised. Why is there an iron door here?

Naoki Oishi looked at the iron door, thought for a while and said tentatively: "Could it be... a passage for transporting goods?"

"Passage?" Yuya turned his head and looked at the uncle.

"Huh," Naoki Oishi gestured with his hands, "I run a hotel, so I know that some hotels will install an elevator on the floor to facilitate the transportation of goods. But this mansion was built a long time ago.So it is not an elevator, but manpower or machinery?"

"So that's it, is it similar to the garbage passage?" Yuya suddenly realized.

"Yes, yes, it's similar to that one." Oishi Naoki clapped his hands vigorously.

"But why is it sealed? Uncle, did you do it?" Yuya asked in confusion.

Oishi Naoki shook his head repeatedly: "It's not me, I didn't even know there was a passage here."

Yuya frowned and carefully observed the cloth in his hand. He found that it was painted with a layer of paint of the same color as the wall, which was not completely dry. No wonder he didn't find it at first.

Yuya pushed open the iron door, turned on the flashlight function attached to the mobile phone, and looked inside. It was indeed a place similar to the garbage passage, but because it had not been used for a long time, it was already a little rusty.

Yuya shrank back, touched his chin and asked Oishi Naoki: "Uncle, what's under this?"

Oishi Naoki thought for a while and replied: "It seems to be... a utility room in the basement? "

"Basement?" Yuya's eyes lit up, "Take me to see it."

"Okay."

The three of them walked around the stairs and came to a staircase that extended downward.

Oishi Naoki said: "This is the basement below. I use it as a storage room. Some things that are not often used are stored in it."

Yuya nodded and led the way down.

According to the approximate location shown in the floor plan, Yuya found the lower entrance of the passage in the basement.

This place is covered by a piece of cloth like the opening on the second floor, but because the lighting in the basement is not enough, it cannot be found without careful observation, so it is not painted like the second floor.

Lifting the cloth, there is also an iron door behind it.

"It seems that this was deliberately covered up." Yuya turned on the light of his mobile phone and found that there were obvious fresh traces of friction at the bottom of the passage, which was obviously left recently.

"Could the murderer use this passage to transport the body? "Shiho Miyano asked tentatively.

Yuya nodded. He found a drop of dark trace at the bottom of the passage. He put on gloves and wiped it with his fingertips. He found that it was fresh blood that had dried.

And with the size of this passage, people can pass through it as long as they curl up, not to mention an old lady as thin as the dean.

"If this passage is used, the body can be transported directly to the second floor without being seen by everyone, and it is a vertical route up and down to the door of the deceased, which is very secretive."

Yuya took off his gloves and put them in a plastic bag: "This drop of blood is still fresh. Let the police test it later and we will know whether it is the dean's blood."

In fact, it is basically certain that it was left by the dean without testing.

"Uncle, did you see anyone enter the basement?" Yuya looked at Naoki Oishi.

Naoki Oishi recalled and his face suddenly changed: "This... Today, it seems that only my wife and I have come down."

"What about between 9 and 10 o'clock? "Yuya asked.

Oishi Naoki was stunned: "Then I don't know, my wife and I were in the room at that time."

He immediately breathed a sigh of relief, almost forgetting that he and Midori had alibis, and it was not night when they came down.

"Is that so..." Yuya looked around the utility room, "It seems that we need to check here carefully..."

"Well, this is..."

Suddenly, Yuya found obvious signs of disassembly at the edge of the opening.

Why is there this? Could it be that there was originally an iron door here like the one above?