The scream could be heard from afar.

Listening to the timbre, the one who screamed was the Suzuki Sonoko that Lin Xinyi had only seen not long ago.

"Miss Yuanzi has an accident!"

"This villa party is really strange!"

Lin Xinyi's heart sank.

He subconsciously got up to leave, but suddenly stopped, turned around and picked up Gray Yuan Wai from the bed.

I don't know what demons and monsters are hidden in this villa, so he can't feel at ease if Xiao Ai stays in the room alone.

In this way, Lin Xinyi ran all the way with Gray Yuan Wai in his arms, and rushed to the other end of the villa with the sound in his arms.

At this time, Maolilan, Conan, Belmode and others also rushed over when they heard the sound and gathered at the door of the guest room where the cry for help had just been heard.

I tried to push the door, but the door locked from the inside and couldn't be opened.

"Garden, garden!"

Maoliran nervously shouted inside the door.

There was still no response from inside the door.

She couldn't wait any longer, so she flew up in a frenzy and kicked the door open.

The door was violently opened, and two women fell in the middle of the room:

Akiko Yonehara, and Sonoko Suzuki.

Both of them fell to the floor groggily.

Akiko Yonehara has a wound on her forehead, and Sonoko Suzuki has a shallow strangulation mark on her neck.

At a glance, there was no longer a third person in the room.

The window in the room was open outward, allowing the cold wind from outside the window to pour in.

"Yonehara-sensei and Ms. Suzuki's breathing is very steady, and nothing major happens."

Lin Shinichi quickly checked the brisk bodies of Akiko Yonehara and Sonoko Suzuki.

After confirming that they were fine, only in a mild coma, he breathed a sigh of relief:

"The murderer may have been attacking Miss Garden, and when he heard someone being attracted by her screams, he gave up continuing the violence and ran away through the window in the room."

"I'm here to watch."

"Miss Maori, go after it now!"

Lin Xinyi made a decisive decision immediately.

He is a doctor, and he happens to be in charge of taking care of the injured Akiko Yonehara and Sonoko Suzuki.

And Maolilan has top-notch combat power, which is more suitable for the job of hunting down murderers.

Although Mao Lilan was instinctively worried about the situation of Yonehara-sensei and Suzuki Sonoko, she also knew that the situation was urgent now, and the pursuit of the murderer could not be delayed for a minute.

"Well, I'll chase it now!"

She changed from a weak little girl to a wild female warrior with a look at her eyebrows, and jumped up in a short skirt and chased her through the window.

Belmode cared about it, so he held on to the window railing with one hand and flipped over lightly.

Leaving the work of chasing the murderer to them, Lin Xinyi was relieved to stay and observe the injuries of Yonehara-sensei and Suzuki Sonoko, as well as the situation at the scene of the attack.

"None of their injuries are too serious, and Miss Yuanzi's neck is only strangled..."

"How can you pass out so easily?"

Lin Xinyi frowned slightly:

With such doubts, a towel abandoned at the scene by the murderer quickly caught his attention.

This towel was casually thrown in the hands of the unconscious Yonehara-sensei, looking a little suspicious.

Lin Xinyi put on the gloves he carried with him, picked up the towel, and gently fanned the smell on the towel to the tip of his nose with his hand:

There is a faint pungent sweet scent.

Squat down again and try to sniff the ground:

Low on the ground, there is also a faint pungent sweetness.

"Is it ether?"

Ether has a special smell, the vapor density is much greater than that of air, and it will settle to a low place after volatilization.

Through these characteristics, Lin Xinyi preliminarily judged that the chemical contaminated on the towel was ether.

"Could it be that the murderer used a towel dipped in ether to cover the victims' mouths and noses from behind, so that they were anesthetized with ether and fell unconscious on the spot?"

He couldn't help but be a little surprised: "This..."

This is almost impossible in reality.

Because ether has a distinctly pungent odor, if someone wants to attack the target from behind with a towel stained with this thing, they will be smelled by the target from a few meters away before they have time to get close.

As long as you have a normal sense of smell and a timely response, it will be difficult to be attacked by this thing.

Even if the sneak attack is successful, because of this pungent smell, most people will subconsciously hold their breath after covering their mouth and nose with ether-stained towel.

Ether itself is extremely volatile.

As long as the breath is closed for 1 or 2 minutes, the ether on the towel will volatilize, and the efficacy will be greatly reduced.

If the killer has the ability and the target to stalemate for a long time, the target will not be able to free himself from the restraint for several minutes until he is unable to continue to hold his breath, loosen his mouth and nose, and inhale the ether on the towel.

So why use ether...

With this kung fu, you can cover people with ordinary towels until they are suffocated and unconscious.

In addition to these reasons, anesthetics, including ether, are not as miraculous as ordinary people imagine.

Even the fastest-acting form of diflurane takes more than ten seconds to work.

Even if you are really numbed, if you don't continue to take medication and ensure that the concentration is greater than a certain threshold, you will wake up soon.

There are drugs that can knock people down in a matter of seconds.

But those are basically highly toxic substances.

That's not to stun people, but to poison people so much that they are about to hang up.

"If the murderer used some highly toxic drugs, Yonehara-sensei and Miss Suzuki should be in a near-death state by now, and their vital signs cannot be so stable."

"It doesn't make sense..."

Puzzled, Lin Xinyi carefully examined both of their cheeks.

Immediately afterward, he gently pinched the jaws of Akiko Yonehara and Sonoko Suzuki, opened their mouths, and turned on a flashlight to carefully observe the inside of their mouths.

"There were no marks on the mouths and noses of the two of them, and there were no obvious peeling of the epidermis on the tips of their noses and lips, which were easy to be injured after being covered by the murderer."

"The oral mucosa, the labial mucosa, also showed no signs of bleeding after being squeezed."

"It shows that their struggle should be short."

"I didn't even resist much, but in a short time, I was stunned by the medicine stained on the towel."

"Does ether really have this effect?"

"No, it's not just ether..."

"Except in the TV series, how can there be such an anesthetic in the world that can faint when you cover it?"

Lin Xinyi muttered in disbelief.

And just when he wondered if he had made a mistake in judgment, the sweet-smelling chemical was not ether, but some powerful narcotic drug that didn't exist in reality...

I saw his scientific advisor, the genius science girl Gray Yuan Wai, but said in his ear seriously:

"Absolutely."

"Ether is one of them."

"Lin, why have you forgotten such basic medical knowledge?"

Gray Yuan's voice couldn't help but feel a little helpless.

The cold tone with a faint doting tone, as if he was pampering the domineering president of the silly white sweet heroine:

"Looks like I'm going to have to find time to make up for your lessons, stupid."

Lin Xinyi: "......."

He was speechless for a moment, and he didn't know what to say.

Hearing such unscientific words from a great scientist is like hearing the president of the United States call on everyone to inject disinfectant, which is unbelievably absurd.

But Miss Gray Yuan is not a joker.

She wouldn't use such a boring joke to make trouble for her boyfriend when he was handling a case.

Other words...

What Gray Yuan said is true, in this world, ether can really make people dizzy when they get wet.

"Okay..."The corners of Lin Xinyi's mouth twitched slightly.

He reluctantly accepted this fact:

This may be like the APTX4869 that can rejuvenate people, a miracle of physiology and medicine unique to this world.

Moreover, judging from the current situation, Akiko Yonehara and Sonoko Suzuki do seem to be stunned by ether.

Thinking of this, Lin Xinyi had no choice but to follow the method of dealing with normal ether poisoning and move them to a place with fresh air to ensure that they could breathe smoothly.

And Yonehara Akiko and Suzuki Sonoko's breathing was relatively stable, and there was no need for him to help with artificial respiration.

"Bring the medical kit and bandage the wound on Mr. Yonehara's head."

"Then just wait for them to wake up on their own, and they should be fine."

Because I really can't understand the strange medicinal properties of ether in this world.

So Lin Xinyi was a little uneasy, and rechecked the vital signs of Suzuki Sonoko and Yonehara Akiko.

After several times of confirming that they were in good health and should be able to wake up on their own, he reluctantly let go of his worries and focused on the investigation of the case.

And the first thing that caught Lin Shinichi's attention was the back of Suzuki Sonoko and Yonehara Koko's hands.

There is a message deliberately left by the murderer.

After committing the crime against Akiko Yonehara and Sonoko Suzuki, the murderer seemed to have used something like lipstick, and on the back of their hands, they each wrote a big red character.

Akiko Yonehara's hand reads: "な"

Sonoko Suzuki's hand reads: "こ"

“なこ，nako...”

"Persimmon?"

"Is it a personal name left by the murderer?"

Lin Xinyi faintly understood the message left by the murderer.

But he still couldn't guess the other party's intention in leaving these two words.

What kind of secret is hidden behind this suspicious person's name?

Lin Xinyi could only put these doubts aside for the time being, and prepared to conduct a further detailed investigation of the guest room that was the scene of the attack.

At this time, the male teachers Shimoda and Sakai, and the female teacher Minori Nakamura, the three colleagues of Mr. Yonehara at Kabido Elementary School, had also rushed to the scene from all over the villa.

Even, it didn't take long...

Maolilan and Belmode, who had just gone out to chase the murderer through the window, also circled half a circle outside the villa, came in through the front door of the villa, and returned here with a solemn expression.

All of a sudden, everyone who was at the villa party gathered here.

"Miss Maori, Chrissy, you're back so soon...."

Lin Xinyi frowned slightly, and his gaze was slightly solemn.

He had a bad premonition:

"Is it because I lost the murderer's traces, or..."

"It's because the murderer is in this villa!"

Maolilan gave an earth-shattering answer.

Everyone changed color slightly, especially those who had never seen anything in the world, Shimoda, Sakai, and Nakamura, these three ordinary elementary school teachers.

Before they could recover from the shock of their colleague's attack, they were frightened by Maolilan's words.

And Maoriland just continued:

"We didn't chase the murderer, and we didn't even see each other's shadows."

"But it had just snowed heavily on the mountain, and the killer would inevitably leave footprints in the snow after escaping through the window and outside."

"I checked with Miss Chrissy:"

"There was only a trail of footprints on the snow outside the window, apparently left by the murderer."

"And that trail circled the villa for half a circle, but finally disappeared at the front door of the villa."

"In other words, after committing the crime, the murderer climbed out of the window and went around in a half-circle, and then fled back to the villa through the front door."

"Now he's in this villa, even..."

Mao Lilan's gaze swept across the faces of everyone present.

Her expression quietly became serious:

"Right among us!"