He shook his head slowly and said, "The alchemist told you, 'He deliberately lied and deceived me, giving me false hope, trapping me in the tunnel, then taking away my daughter and killing my wife.'"

"The true meaning of this sentence,

is that at 9:15 PM on March 3.3, the alchemist entered room C of the tunnel as usual to listen to his self-summary three days later.

He heard himself on March 3.6 talking about a lot of good news, probably that the antidote preparation had made great progress.

Overjoyed, he stayed in room C,

until he walked out of the tunnel at 9:45 PM and discovered the deaths of his wife and daughter."

Li Ang spread his hands and said, "So, why would the alchemist on March 3.6 lie to himself on March 3.3, and cause the deaths of his wife and daughter?

The reason is simple, your sister, Siri, was bound to die on the night of March 3.3 due to illness.

All subsequent cycles revolve around this.

In the normal timeline, on March 3.7, the alchemist was still preparing the medicine, and at 9:30 PM, he asked if you could still make it in time.

During these three days, the alchemist should have opened up secret passages in rooms D and E of the tunnel,

using the time reversal effect to travel back to the past and feed the medicine to his daughter—which is why on the night of March 3.2, the daughter said she dreamed of someone coming out of the closet and feeding her medicine.

Obviously, the medicine was still not right,

and Siri still died at 9 PM on March 3.3.

However, even room B can only rewind 72 hours at most.

If the time exceeds 9 PM on March 3.7, the alchemist will no longer be able to use the tunnel to return to the past and save his daughter.

So, he made a choice, went down the well, and executed the plan.

That is, to seal off the tunnel, so that the timeline, permanently stops at 9 PM on March 3.4.

Thus began the first cycle."

Li Ang said calmly, "In the cycle timeline,

the alchemist entered room D, which was 24 hours ahead of the tunnel time, at 9:15 PM on March 3.4 in the normal timeline, and used the secret passage to reach the surface.

At that time, the surface time was 9:15 PM on March 3.3.

He sent his wife and you away, and spent time alone with Siri, feeding her the medicine. Unfortunately, the medicine was ineffective, and Siri still died.

So, he used the secret passage to return to room D again, opened the stone wall, and continued to develop the medicine,

then took the second model of the medicine, and used room E, which was 48 hours ahead of the tunnel time, to reach the surface.

At that time, the surface time was 9:35 PM on March 3.2.

The secret passage in room E should be in the daughter's closet. He fed the medicine to his daughter, then returned to the tunnel,

and then used room D to return to the ground at 9:30-40 PM on March 3.3 to see if the medicine had any effect.

Unfortunately, the medicine was still useless, and Siri still died.

Before that, the alchemist's wife may have discovered Siri's death,

note that she is a plant alchemist, and has made outstanding contributions in the field of surgical emergency alchemy,

Before living in the countryside incognito, she and her husband also worked in a secret organization.

When she found her daughter dead or dying, and her husband was not present, she had to use alchemy to try to heal or revive her daughter.

However, alchemy failed to work, and instead turned the daughter's body into a deformed monster.

Seeing this scene, she was greatly shocked.

At this time, the future alchemist who started the cycle just returned to the ground, comforted his wife, and took away the deformed daughter's body, using the secret passage to return underground.

When the alchemist on the normal timeline, after listening to the lies he told himself on March 3.6, returned to the surface from the tunnel with satisfaction, he saw his wife who had already committed suicide.

At that time, you on the normal timeline tried to stop your mother, but failed."

After saying a long paragraph, Li Ang took a deep breath and said again, "So, after the alchemist on the cycle timeline returned to the tunnel with the deformed daughter's body,

what should he do?

Of course, continue to develop the medicine.

The true meaning of the cycle should be to fix the tunnel time between 9 PM and 11 PM on March 3.4, for a period of 3 hours.

Every time it reaches 11 PM on March 3.4, the time in the tunnel will be refreshed,

the alchemist will start all over again, preparing medicines in the laboratory again and again,

constantly traveling between 9:15 PM on March 3.3,

9:35 PM on March 3.2,

and 9:40 PM on March 3.3 these three time points.

I think the isolation suit he is wearing should have the function of retaining memories,

Unfortunately, the limitations of the times made it impossible for the alchemist to cure his daughter's disease no matter how long he spent,

but gradually became overwhelmed in the cycles.

Thus, there was the second type of cycle, which is me."

Li Ang pointed to himself, "The rubber suit on me is missing a key component, not only can it not shield chirality reversal, but it can't retain memories,

This should explain that the alchemist could not bear the mental pressure of countless failures, and actively transformed the room, set up机关谜题(jiguan miti, puzzle mechanisms),

and washed his memory clean at the beginning of each cycle.

So, I, that is, the 'infant' alchemist who lost all his memory, woke up in room A at 9 PM on March 3.4, saw the envelope, and followed the guide to explore all the rooms step by step.

Since the IQ of the infant alchemist did not change in each cycle,

so it is easy to predict all the actions.

Leaving the envelope that the infant alchemist would accurately open at a fixed time.

Well... it is very likely that you left the envelope, or the alchemist himself in the first cycle,

Of course, I prefer you."

Li Ang raised his chin towards Alice, who remained silent, without saying a word.

Li Ang continued, "The infant alchemist saw figures wearing the same rubber suit as himself along the way,

I'm afraid they are all alchemists on the first cycle timeline.

This also just explains why he always appears suddenly, and then suddenly disappears carrying a deformed monster.

In short, after solving all the puzzles, the infant alchemist will discover who he is, and the secret of the tunnel.

Then open the tunnel and meet you.

You are not only my daughter, but also the last guide.

When I retrieve all my memories, I will follow your guidance, enter the last room G, and continue my drug research, striving to find an antidote in the last two hours."

He said to himself, walked past Alice, picked up the key in his hand, and opened the door to room G.

The door opened.

Inside was a laboratory, with all the experimental equipment complete.

It's just on the four walls, ceiling and even the floor,

leaving dense, almost invisible chalk writings.

Those are all chemical formulas.

Formulas left over from countless cycles.