I traveled through time and space as a villain and became her heart-stealer.

In another twelve hours, the cardiolytic solution should be ready.

But facing the magic core that remained unchanged, Gu Qinghan looked gloomy and felt a little anxious.

The production difficulty of LV.3 is such that we cannot expect it to be smooth sailing.

You have to use your imagination and try new ideas to have a chance of succeeding the first time.

Thinking of this, Gu Qinghan slowly closed his eyes and began to recall the chemistry knowledge he had learned in class.

There are three conditions that need to be met for an object to burn.

Sufficient oxygen, combustible materials reaching the ignition point, and the flammability of the object itself.

There is no doubt that there is sufficient oxygen in the room.

A temperature of one thousand degrees Celsius should be enough to reach the ignition point.

Well, there is only one most likely reason.

——The demon core of the inner demon is incombustible.

This made Gu Qinghan's eyes become solemn.

If this were true, then the experiment would have been impossible to accomplish in the first place.

But if that’s the case, why did Hohenheim write “the remains of the burning magic core of the inner demon”?

Gu Qinghan narrowed his eyes, his brain working rapidly, and began to think.

If he was Hohenheim, under what circumstances would he write such words?

After a long period of contemplation, Gu Qinghan got the answer.

Between the lines of the Secret of Hypnosis, Hohenheim had already reminded him of the method of successfully making medicine.

A method of successfully burning incombustible materials.

Chapter 15 Foreshadowing

Another six hours passed.

The sun was blazing in the sky, and the heat was stifling. The cool air from the bathroom turned hot in the blink of an eye after meeting the sun.

Gu Qinghan paced back and forth in the room, beads of sweat on his forehead.

Just as he had imagined, the magic core in the small stove remained unchanged and remained purple-red.

Time is becoming increasingly tight.

During this time, Lianna would come over from time to time to buy new ice cubes to ensure that the heart in the bathroom remained at a low temperature.

However, when she learned that there were difficulties in calcining the magic core, she couldn't help but reveal a worried look.

"If this continues, I'm afraid it will be too late."

She bit her lips lightly, looked at Gu Qinghan's haggard face, and couldn't help but speak.

Tomorrow is Monday.

Just now when she went out to buy ice and ingredients, she happened to meet Miss Katarina and Miss Lina.

The two people expressed their concern very cordially, and then specifically reminded that Lina would continue the routine check-up tomorrow morning.

However, at the current pace, it will be difficult to achieve the goal on time.

"No, actually I have vaguely guessed the correct method to forge the magic core." Gu Qinghan suddenly spoke.

This made Lianna startled, and then her eyes gleamed with excitement.

"Really? Tell me now!"

Gu Qinghan looked at Liana with complicated eyes, sighed lightly, and then said:

"Although I have a vague idea like this, the risk is very high. If I guess wrong, I will really fail."

Lianna couldn't help but frown when she heard that, and her expectant expression was now filled with a hint of worry and curiosity.

"What exactly needs to be done?"

Gu Qinghan continued:

"The demon core of the inner demon is incombustible, so there is no way to burn it and produce ashes. This is what I originally thought."

"But it depends on what kind of flame it is."

After a pause, Gu Qinghan continued to explain:

"As a demon without a physical body, the Mind Demon cannot be attacked physically and can only be destroyed through mental trauma."

"So I guess that if we want to forge its magic core, we'll probably need a method with the same effect."

"Use the fire of the soul to perform the final calcination of the magic core."

At this time, Lianna couldn't help but blinked, tilted her head and asked in confusion:

“What needs to be done specifically?”

After a brief hesitation, Lianna added:

"We... don't have such a method, right?"

Gu Qinghan looked at Lianna's confused eyes, with the corners of his mouth slightly raised.

"No, we have just the right method, and we can get it right away."

As he spoke, Gu Qinghan shifted his gaze and looked towards the closed bathroom.

At this time, because the bathroom was too large inside and outside, a thin layer of water mist condensed on the surface of the frosted glass and dripped along the wooden door.

Gu Qinghan's eyes were cold as he stared at the gap between the wooden door and the ground. His expression no longer had the previous anxiety.

"After six hours, the ignitable liquid will be produced."

Liana stared at Gu Qinghan in a daze. Her determined eyes, like an eagle, stared at the target.

In an instant, Lianna understood the meaning of Gu Qinghan's words.

"Okay, I'll help you later."

Lianna nodded solemnly, looking at Gu Qinghan's profile and said.

……

Six hours later.

Gu Qinghan opened the cold wooden door of the bathroom and couldn't help but exhale a puff of white mist, shivering all over.

Forty-eight hours later, the room was completely covered with frost.

Under my feet, the melted ice seeped into the wooden boards, soaking a large area, but then condensed due to the addition of new ice, forming a thin layer of ice.

If you step on the ground, you will slip and fall if you are not careful.

Gu Qinghan put on rubber gloves, took one of the hearts out of the ice, and poured out the liquid inside.

The hypnotic powder is dissolved in the extract.

When placed in a test tube, it is a completely colorless and transparent liquid. Except for being slightly viscous, it is not significantly different from water.

However, if you take a quick sniff, you'll smell the smell of rotten fruit filling your nose.

Saying that it is worth a thousand gold is a bit of an exaggeration, but saying that it is worth a hundred gold is completely true.

This small test tube caused Gu Qinghan to lose sleep for a whole week. It can be said that it is extremely valuable.

Next, he will burn this valuable liquid as fuel.

Burned out.

And this is exactly how Gu Qinghan solves the problem.

In fact, Gu Qinghan started thinking about this problem as early as when he realized that the magic core of the inner demon was non-flammable.

In the Mystery of Hypnosis, in the notes about [Soul Hypnosis Potion], there is this sentence:

"After the liquid medicine absorbs the essence of the heart, it will become flammable. Please use it with caution."

When Gu Qinghan originally read this sentence, he thought it meant to stay away from the small calcination furnace as much as possible to avoid being accidentally ignited.

Now it seems that he misunderstood Hohenheim's original intention.

On the contrary, he needed to ignite the extract to burn the magic core!

This was a reminder to him that heart extract was truly flammable!

Thinking of this, Gu Qinghan took a deep breath, and the palms of his hands holding the test tube began to sweat.

Next, he will pour this precious medicine into the small stove and cover the surface of the purple-red high-temperature magic core.

He only had two doses of the potion now. If he failed, he would be pushed into an abyss of no return.

"But, I have no way out anyway, right?"

With a wry smile, Gu Qinghan sighed softly, and the tension in his heart gradually disappeared.

The hand holding the test tube stopped shaking, and Gu Qinghan's eyes became focused.

This "gasoline" worth one hundred gold coins must be put to good use for me.

With a joke in his heart, Gu Qinghan gritted his teeth and poured all the colorless viscous liquid into the stove!

——Hoo ho ho!

A huge flame suddenly burst out from the small stove, reaching a height of more than one meter.

Red flame, yellow flame, blue flame, purple flame...

The flames of various colors kept changing, and the flame colors reacted like a rainbow, making people feel a little dizzy.

"Mr. Hohenheim, I feel a little dizzy..."

On the side, Lianna spoke breathlessly, her face looking a little pale.

"Close your eyes first, and open them when I tell you to!"

Gu Qinghan stared at the flames and spoke very quickly, with a trace of cold sweat on his forehead.

This is a characteristic of the demon of the mind. The burning flame can produce a force that interferes with people's minds, and the effect is very powerful.

But it is precisely because of this that it is possible to successfully calcine the incombustible magic core!

This time, Gu Qinghan finally felt that he had grasped the hope of success.

The flames burning in the soul are rapidly taking effect.

Chapter 16 The Strongest Hypnotic Potion

five minutes later.

As the flames gradually subsided, the color changes began to slow down.

The black flame burned out after tens of seconds, and the color of the flame gradually faded, eventually turning into a colorless flame that flickered faintly.

If it weren't for the distorted air flow and the inexplicably high temperature, it would be difficult to even detect the presence of the flame.

The violent flames that were originally one meter high had now morphed into a ball the size of a palm, covering the surface of the Mind Demon's core, barely maintaining its position.

Gu Qinghan stepped forward and stood next to the small stove, staring at the magic core inside, secretly breaking into a cold sweat in his heart.

The magic core finally began to burn.

The hard outer shell began to collapse, exposing the internal structure of the magic core; colorless and transparent tiny crystals covered the bottom of the furnace, which were exactly the "combustion residues" mentioned in Hohenheim's notes.

In just a few minutes, the outer part of the magic core shrank, leaving only the size of a walnut. I believe that in a few more minutes, the entire magic core will completely disappear.

Seeing this scene, Gu Qinghan finally breathed a sigh of relief, only to realize that his back was already wet with cold sweat.

It turned out to be a LV.3 potion, which was quite difficult to make.

"Mr. Hohenheim, may I open my eyes please?"

At this moment, an anxious voice came from the side, which made Gu Qinghan feel a warm current in his heart.

"It's okay, come and take a look."