Chapter 977 The Secret of Tomato's Appearance

After all, Yui Uehara is a police officer, so she immediately understood the hidden message in Yuya's words: "Could it be that the person who killed Mr. Bo Gu is here?"

Yuya nodded.

Yui Uehara pondered and said, "When Xiaolan checked the water temperature, she didn't find anything unusual. When she finished cleaning and was about to go back to take a bath, she found tomatoes floating in the bathtub, and then she found the body in it."

"From this perspective, the crime must have occurred between these times. If this is the case, then the possible perpetrators are only Ms. Tamae, who was in the kitchen the whole time, and Mr. Nida, who went to buy something a kilometer away."

"But, didn't we analyze it before and found that these two people could not have committed the crime?"

Yuya said, "Yes, it does seem so on the surface. However, even if it is Mr. Nida, it would be impossible to cover the entire bath with tomatoes without running back and forth two or three times."

"But it's almost impossible not to be discovered by Xiaolan and the others who are cleaning the rooms and corridors on the first floor."

After listening to Yuya's words, some smart people secretly glanced at Kazuaki Sumika - if Jinta Shinfu and Minegishi Tamae were not the murderers, then she was the only one left, right?

It can't be Ran Mouri or Shiho Miyano, right?

Uehara Yui was even more confused: "If that's the case, could it be that two or three people committed the crime at the same time?"

Yuya shook his head in denial: "That's even more impossible."

"What's going on?" Uehara Yui asked somewhat unhappily. She didn't like the way these detectives only spoke halfway.

Yuya said slowly: "Since the crime was not committed during that period, then isn't there only one possibility left?"

Uehara Yui was stunned for a moment, but as a police inspector who had handled many cases, she guessed it immediately and couldn't help but widen her eyes: "You mean, the body was in the bath from the beginning?"

As soon as she finished speaking, she denied it herself: "It's impossible. If that's the case, how could Xiaolan not have noticed it when she checked the water temperature?"

Yuya looked at Ran Maoli and asked, "Ran, when you checked the water temperature, did you put your hand to the bottom of the pool?"

Mao Lilan was stunned for a moment and shook her head: "No, I just touched the shallow water and there was nothing..."

She suddenly shuddered. If things were really as Yuya said, then didn't she just test the temperature of the water that was soaking the corpse?

The little face turned a little paler.

Seeing this, Miyano Shiho held her hand to comfort her, and Suzuki Sonoko also hurried over.

Mao Lilan's testimony further confirmed Yuya's statement. Uehara Yui frowned and said, "If that's the case, the body can be pressed to the bottom of the pool with a barbell, but how can we do that with so many tomatoes? It's impossible to string them together with a rope and press them with a barbell, right?"

Yuya looked at her strangely, thinking that this female police officer had a very rich imagination, but this was obviously impossible.

He held up a finger and said slowly, "This is actually very simple, but seeing is believing. Let's do an experiment. Sera-san?"

Sera Masumi responded, brought a tomato and a kettle, placed them on the table, and then threw the tomato into the water with a splash.

Yuya gestured, "You can see that the tomatoes are sinking. I think everyone has seen this in supermarkets and places like that, right?"

Mao Lilan, who goes to the supermarket most often, immediately agreed: "Yes, the merchants want to show that the sweeter tomatoes are different from ordinary tomatoes, so they sink to the bottom of the water, right?"

Yuya said, "Similarly, if it's a bath, since the bath additive at home makes the water opaque, you can't see it from above, right?"

Suzuki Sonoko couldn't help but ask: "So, how do you make a tomato float?"

Yuya said, "This is actually very simple. You must have done an experiment in science class, right? Make an egg float in water."

Suzuki Sonoko was stunned for a moment, then understood: "You mean, add salt?"

Yuya nodded and gestured to Sera Masumi.

Masumi Sera cooperated and took out a bottle of salt and started pouring it into the water.

Soon, the tomato shook a little, then slowly floated up, until it finally floated completely on the water.

Yuya explained: "The reason why tomatoes sink to the bottom of the water is because tomatoes are sweeter and have a higher density than water, so they sink to the bottom of the water; but after adding salt, the density of salt water is greater than tomatoes, so the tomatoes will float to the surface."

"In the same way, you can achieve the same effect by simply adding bath salts to the water in the bath."

"The reason why the tomato didn't appear when Xiaolan tested the water temperature for the first time was because the murderer added bath salts to the water, making the water density reach the maximum value that allowed the tomato to float. Then, when you went to the bathroom the second time, you only needed to add a little more bath salts to the bathtub, and the tomato would float up immediately."

"The second time..." The scene of going to the bathroom for the second time to take a bath appeared in front of their eyes. Several girls were stunned and couldn't help but look at Kazuaki Sumika who was the first to enter the bathroom at that time.

Seeing this, Youya said slowly: "Yes, there is only one person who can do this, and that is Miss Sumika who entered the bathroom first!"

Everyone was shocked and looked at Kazuaki Sumika, who trembled violently, but she lowered her head so no one could see the expression on her face.

Ren Tian Shenfu immediately questioned: "How is it possible! And wasn't Cheng Xiang always cleaning the rooms on the second floor? These ladies can testify! They heard the sound of the vacuum cleaner and the nozzle hitting the wall!"

The girls naturally believed Yuya's reasoning, but someone raised a question, so of course an explanation was needed, so they all looked at Yuya.

Yuya said, "The vacuum cleaner is simple. As long as the switch is turned on, it doesn't matter if no one is around. As for the sound of hitting the wall, just fix Mr. Renda's baseball bat on a piece of cardboard and hang it on a pillar. Then set the electric fan to rotate and let the wind blow on the cardboard to create the sound of the collision."

"There are sticky marks on the bat, and that's the evidence."

"In this case, Ms. Sumika's alibi is no longer valid."

Ren Tian Shenfu opened his mouth but had nothing to say. He was originally wondering why there was an electric fan in his room. Now everything was explained. It turned out to be a tool used by Ming Chengxiang to forge an alibi.

Seeing that Ren Tian Shenfu no longer questioned, Youya continued: "Ms. Chengxiang pretended to be cleaning the room on the second floor, but actually sneaked into the bathroom on the first floor and knocked Mr. Bo Gu who was cleaning the bathroom unconscious with a barbell, and then used the method I just mentioned to sink Mr. Bo Gu and Tomato to the bottom of the water."

"Then, you just need to invite Xiaolan and the others to help clean up. When you pass by the bathroom, use the excuse of testing the water temperature to ask them to make sure there is nothing in the bathtub. Finally, when you come to the bathroom for the second time to take a bath, you should be the first one to enter the bathroom and pour bath salts into the bathtub. This way, the tomato will naturally appear in the bathtub out of thin air."