A perfect crime? To me, it's full of flaws!

Qi Feng drove away from Bowen Orphanage and soon arrived at H City No. 1 Welfare Home, where the first deceased, Wang Xueqing, had once stayed.

This welfare home is larger and more strictly managed.

Qi Feng revealed his identity and spent some time explaining before finally meeting a vice president on duty.

It had been too long, and the orphanage was quite large, so the deputy director clearly couldn't remember what had happened so long ago.

That's normal. The director of Bowen Orphanage remembered Chen Xiaoda because he was among the first batch of children there, and there were only a few children.

This H City No. 1 Welfare Home has more than 700 orphans. Asking the deputy director to remember someone from more than 20 years ago is just asking the difficult question.

So we can only look through the documents and see if there is any usable information in the files.

The documents from twenty years ago have long been sealed away.

The vice dean was a woman in her fifties. She was somewhat impatient with Qi Feng's late-night visit, but she still cooperated and searched for nearly half an hour.

"Found it," she said, slamming a dusty file book onto the table.

"Wang Xueqing entered the park on September 10, 2003."

Another September!

Qi Feng thanked him and immediately rushed to the next place, the Chunhui Home in the east of the city, where the fourth victim, Su Meng, had stayed.

The information obtained this time was even more vague. The director had retired, and only an old caregiver, relying on his hazy memory, found the record in the yellowed work log.

"Su Meng, September 25th."

That's enough!

When Qi Feng arrived at the fourth orphanage, it was already 10:30 p.m.

As expected, he was stopped outside by the tightly closed gate and a vigilant security guard.

"Officer, we have a rule here that we can't come in too late. Please come back tomorrow."

Qi Feng didn't insist. He leaned against the car door and lit a cigarette.

Wang Xueqing, September 10th.

Chen Xiaoda, September 21.

Su Meng, September 25th.

Three seemingly unrelated deceased individuals were all sent to three different orphanages in the same month twenty years ago.

This is no coincidence!

This case is getting more and more interesting!

........

The next morning, Qi Feng escorted the well-rested Lin Haitang to the city bureau building.

"You go up first, I'm going out for a bit, I'll be back at noon."

"Where are you going again?" Lin Haitang asked.

"Investigate the case." Qi Feng said succinctly, and before she could ask any more questions, he stepped on the gas and drove off.

He wanted to verify the timing issue from last night.

The remaining three orphanages are located in three other areas of H City.

Qi Feng drove his car, almost circling half of H City.

Finally, around noon, he parked his car in the city bureau's parking lot, looking tired but with an unprecedentedly bright look in his eyes.

The answer has been verified!

The remaining three victims, without exception, all entered their respective orphanages in September 2003!

Six people, twenty years ago, entered six different orphanages in H City in the same month, and then had no contact with each other for the next twenty years.

Guess whether I believe it or not, there's absolutely no connection between you two!

But what is the reason that forces them to separate?

Were they under a potentially fatal threat?

Or are they jointly keeping a shocking secret?

Qi Feng's fingers tapped lightly on the steering wheel, his brain working at a rapid pace.

To find out what happened twenty years ago, relying on just him and Lu Ziye and a few others is like looking for a needle in a haystack. Even if the entire task force were involved, they might not be able to find anything.

Too much time has passed, and many traces have disappeared with the passage of time.

Therefore, this alone is not enough; other clues are needed to uncover the truth.

Qi Feng's thoughts ultimately landed on that mysterious black disc.

He opened the car door and walked towards the office building.

As soon as he entered the room, he saw Haitang hang up the phone and look at him excitedly.

"You're back just in time! The provincial department's report has just come out!"

After saying that, Lin Haitang sent the file on her phone to her office computer.

The first part of the report is a routine analysis of the composition of the black discs.

The sample was made from a mixture of various natural plant powders, with the addition of arborvitae carbon powder, and then pressed together.

The main ingredients are: *Heliotropium indicum*, lavender, jujube seed, dried jasmine, *Polygonum multiflorum*, and *Acorus calamus*.

What are all these?

Qi Feng was completely baffled.

Fortunately, Lin Haitang was there. Seeing Qi Feng's questioning look, she began to explain.

It turns out that the first four are very common sleep-aiding and calming Chinese herbal medicines, which are often found in various aromatherapy and calming teas.

But the last two are night-blooming jasmine and sweet flag.

These two medicinal herbs are not so common.

Fortunately, the latter part of the report explained in detail the pharmacological effects of these two special medicinal materials.

[Polygonum multiflorum: Its main effect is to slow down the transmission of nerve signals, leading to sluggish thinking and slow reaction.]

[Acorus calamus: It weakens the body's sensory perception, making the body numb to various external stimuli.]

Now that I've seen this, everything makes sense!

Qi Feng felt as if a bolt of lightning had struck his mind, instantly clearing up all the doubts!

He finally understood the killer's incomprehensible criminal methods!

This was not a simple murder; it was a meticulously planned crime that combined psychology and pharmacology!

The first step is psychological suggestion. Over a period of time, the perpetrator uses some method to continuously hypnotize and suggest to the victim, planting a seed in their subconscious to go to a specific place at a specific time, such as a railway track, and lie down to sleep quietly.

However, as mentioned before, humans have a most basic self-protection mechanism.

When people realize that their lives are under direct threat, even the strongest psychological suggestion can be broken in an instant.

Therefore, it is absolutely impossible to make them commit suicide through this.

Now it's time for this black disc to make its appearance.

The lavender, jujube seed, and other ingredients in it can make victims feel sleepy and relaxed, thereby lowering their psychological defenses and making them more receptive to the suggestion of sleeping.

The most crucial ingredients are Polygonum multiflorum and Acorus calamus!

The former dulls the victims' minds; when they lie on the tracks and hear the train's warning siren, their brains need more time to process the danger signal.

The latter directly numbs their senses and weakens their perception of the outside world.

The intense stimuli, such as the vibrations of the train and the whistling of the wind, became blurry and unreal to them.

This leads to two inevitable outcomes.

Alternatively, the victim may have already fallen into a deep sleep due to the combined effects of multiple drugs before the danger arrives, causing their psychological defenses to completely fail and making them completely unaware of the train's approach.

Even if they weren't completely asleep, under the combined paralysis of the night-blooming jasmine and the sweet flag, by the time their brains finally reacted and broke free from the hypnosis, the speeding train was already upon them, leaving no time or possibility for escape!

"So that's how it is..." Qi Feng murmured to himself.

"Haitang, print this out for me!"

This time, he needs to have a serious talk with Guan Hai.