Hogwarts starts with stealing power.

In fact, Isaac had no idea why Hermione had to learn this spell.

For young wizards, there is no need to learn advanced confidentiality spells.

After all, what advanced information can a little wizard have access to?

If he hadn't discovered during his inspection that Hermione had already learned many of the spells that required prerequisite learning in the "Fidelius Charm".

Otherwise, he would have tried to persuade Hermione to give up learning the Fidelius Charm during the teaching process.

As Hermione made progress in her studies every day, she kept repeating Thursdays, so Isaac had different feelings every day.

From the beginning he wanted Hermione to give up studying, but later on, he just thought that Hermione came to him to discuss the Fidelius Charm together.

In the end, he knew why Hermione came and asked Hermione to demonstrate the Fidelius Charm. After Isaac saw it, his expression was strange.

"You are the most outstanding little witch I have ever seen. You have already mastered the Fidelius Charm. You came to me for more than just the purpose of learning the Fidelius Charm."

After Hermione received Isaac's full approval, she felt relieved and immediately took out the speech she had prepared long ago.

"Due to work reasons, I have some experience in the Fidelius Charm. This is just a small test for you. Next, I would like you to teach me the [Virtual Image Curtain]."

"Virtual image curtain?"

This spell was somewhat obscure and unpopular. Isaac's confused and numb mind took a long time to think about it before he remembered it.

This is an advanced hiding spell.

The "virtual image curtain" can cover the surface of a specific area with a layer of false reality projection. Outsiders can only see the preset ordinary scenes. Only those who meet the "blood bond" or "specific memory resonance" can penetrate the illusion.

This spell is very advanced, but also very useless.

To cast this spell, the caster needs to regularly sacrifice his or her happy memories. If the memories are exhausted, the caster will permanently lose the ability to feel joy.

Many concealment spells can achieve the effect of "illusion veil".

The difference is that the "Valley of Illusions" can deceive high-level wizards, while other lower-level concealment spells can only deceive middle and low-level wizards.

Isaac asked in confusion: "You are still young and in school, why do you want to learn such advanced spells?"

Hermione straightened her expression and said seriously: "Mr. Isaac, I am not trying to learn this spell, but I am testing whether you still remember it.

The more difficult the spell is, the more time you will put into teaching me, and you can’t be lazy, so that you won’t have extra thoughts to think about other things.”

Isaac: "I do know this spell and can use it, but I don't think it makes any sense to teach you this spell. It would be better to teach you some advanced spells that you can use quickly."

Hermione smiled slightly: "Although I am conducting research on you, I actually have my own selfish motives.

To be honest, this advanced concealment spell was carefully selected by me, and I can guarantee that this spell is very important to me."

Isaac hesitated for a moment and said, "Why don't you learn other spells? I can teach you the more practical Patronus Charm.

If you learn the Patronus Charm, you can fight against the Death Eaters and the infected creatures from the evil world, and it can even save your life when necessary."

Hermione shook her head and said calmly, "No, sir, I just want to learn the veil of illusion. As for the Patronus Charm you mentioned, I have already learned it."

As soon as she finished speaking, she drew out her wand and waved it forward according to a specific gesture.

After a while, a white and warm light flashed at the tip of the wand.

Seeing this light will make people feel warm in their hearts, and many happy pictures will unconsciously emerge in their minds.

Isaac's mouth dropped open in surprise.

The little witch in front of me is so young, but she has already learned the Patronus Charm.

He looked at Hermione deeply, thinking:
No wonder the team studying glow candles and cold pills would absorb such a young wizard into the team. It turns out that this little wizard is extremely talented and has already mastered the use of spells at a young age.

Including the Fidelius Charm he had seen before, the little witch had already learned two advanced spells.

The young are to be feared, really amazing!
Hermione learned the "Veil of Illusion" spell from scratch. She didn't have to learn many prerequisite spells like the Fidelius Charm, so her progress was quite slow.

She had to start by learning the low-level spells she needed to know.

Because she had already had the experience of learning an advanced spell once, Hermione thought that she would be more proficient and faster in learning the second advanced spell.

But when it came to learning low-level spells alone, Hermione was very dissatisfied with her efficiency.

These were just low-level spells, not very difficult. Based on her previous experience of learning low-level spells, she could learn one in ten minutes.

But today, it took her a whole morning to learn just one.

Hermione couldn't help but frowned and murmured in a low voice: "The learning speed is still too slow."

Isaac, who was standing by, heard her mumbling and began to mutter in his heart as well.

"This little witch is too strict with herself. When I was learning the Illusion Curtain, it took me a week to learn a low-level spell in the prerequisites."

Although the low-level spells in the prerequisites are classified as low-level, each one is much more complicated to learn than a normal low-level spell.

Strictly speaking, the difficulty is no less than that of the intermediate level, but the effect of using it cannot be rated as an intermediate spell.

It took him two full years to learn how to use the virtual image curtain, but he still couldn't use it skillfully.

In order to prevent this advanced spell from being wasted, he had to find a safe place to use it every three months in order to maintain his learning memory.

Don't wait until the critical moment, only to find that you won't be able to use it when you need it.

"Perhaps geniuses' ideas are destined to be different from those of ordinary people. Their talents are also different, and they have higher self-requirements. Otherwise, they would not be absorbed into such a powerful research team."

Hermione had no idea what Isaac was thinking, nor did she know that she was actually very fast.

When she opened her eyes again, she was already lying in the warm and comfortable bed at home.

Using this sleep time, she began to think about how to speed up her efficiency and learn the prerequisite spells one by one.

"I think there are ways to learn faster. Isaac's step-by-step teaching is too slow. Maybe I should ask other teachers."
-
Lin Xia, on her side, studied element theory with Professor Barbling and got the hang of it quickly.

She has analyzed the elements contained in three common magic plants and extracted them.

Some elements can be stored as solids under certain conditions, but some can only remain in liquid form, and some are actually gases. If Lin Xia hadn't been sensitive, she would have felt a familiar substance in the air and put it into the bottle according to her feeling.

Otherwise, the elements she had worked so hard to extract would be diluted in the air.

All previous efforts were wasted and the complicated extraction process had to be repeated all over again.

Even with the help of the spell, many steps requiring precise operations have been omitted, but Lin Xia still found the extraction process cumbersome.

She could imagine that if this sophisticated process were implemented in the Muggle world, without the assistance of magic, the preliminary preparations alone might take two or three hours.

The process of waiting for the elements to be extracted may take two days, three days or even longer, and there is a high possibility that nothing can be extracted. Luck is required in the extraction process.

After all, even with the assistance of magic, she couldn't guarantee that all elements could be detected.

Now that the elements in the magic plant have been extracted, Lin Xia immediately tried to use the elements to prepare the magic potion.

She looked at the potions she had extracted, one of which was nettle. Soon, she came up with the simplest potion in her mind, which was the "Scabies Potion".

Scabies potion can quickly eliminate scabies and redness caused by magic or non-magic. It is a commonly used potion in the wizarding world. She is very familiar with this potion because she has improved it before and added sulfur to the anti-virus version of the scabies potion.

This newly improved potion borrowed the Malfoy family's sales channels. After it was launched on the market, it has been selling very well and has been praised by many wizards for its good quality and low price.

After all, this new and improved potion is even more effective than the original scabies potion, it’s completely painless to use, and the experience is great, plus the original version sells for half the price.

Therefore, once it was launched, it was immediately welcomed by many wizards, and it adopted the strategy of small profits but quick turnover.

She had heard Draco mention that the improved version of scabies potion was only a low-level potion, so its popularity did not arouse the envy of other families.

If this was an intermediate potion and the profit was a little bigger, I'm afraid other families would not be able to resist competing with the Malfoy family and resort to some underhanded tricks.

Although the Malfoy family is not afraid of these means, it is better to have less trouble than more.

After all, the improved version of scabies potion alone made the Malfoy family's financial report look much better that year.

As the improved version of scabies potion continues to gain recognition among wizards and is promoted from prosperous cities to remote cities, it will sell even better and may even become a global business.

If a magic potion is to be improved, it must be studied thoroughly to find opportunities for improvement.

Lin Xia had studied the scabies potion thoroughly before thinking of using sulfur to replace the special effects of the venomous snake's fangs.

Now that she has extracted elements from nettle, she can use the extracted elements to make a scabies potion.

The theory of elementalism is very good, but it is not enough to just know the theory, you have to be able to actually produce it.

She followed Babel to study, but Babel never set any limits for her, so Lin Xia had a lot of free time for her experiments every day.

After all, Babeling was very busy, and most of the time she had no way of taking Lin Xia with her in person. She just left a book called "Basic Theory of Elements" and disappeared.

But this magical forest has restrictions set by Professor Barbling. Lin Xia saw many rare magical plants, but did not see the corresponding guardian beasts. They must have been driven away by Barbling.

“I have extracted three useful elements from dried nettles, but I don’t know which one is responsible for the scabies potion.

To be safe, you can put all three elements in first. If you can really make a successful scabies potion through elemental theory, then I will analyze one by one to see which element is the most effective. "

Lin Xia went over her ideas in her mind and started to make them.

The most common version of scabies potion is simple to make, using only dried nettles, powdered snake teeth, steamed slugs with tentacles, and porcupine quills.

It takes an ordinary wizard 45 minutes to make it, but if it is made by a potion master like Snape, it can be shortened to 20 minutes.

As for Lin Xia's improved version with the addition of sulfur, the preparation time is about thirty minutes, which is the same for both ordinary wizards and potion masters.

Lin Xia used the extracted dry nettle element to replace the dry nettle material and took out the scabies potion material bag from the ring. The material bag was equipped with a set of all the necessary materials.

In addition to the material pack for scabies potion, she also prepared many material packs for magic potions.

I am just afraid that I will go to an unfamiliar place in the future and need to prepare a potion urgently, but I will not have the materials on hand, which will put me in danger.

That's why she was so fully prepared.

Lin Xia first added the elements of dried nettles and venomous snake tooth powder, then followed the steps to add the slugs with tentacles from the cooking pot, and finally added the porcupine quills after the crucible was removed from the fire and stirred quickly.

If it is put into the potion without being away from the fire, black smoke will come out and the potion will be highly corrosive.

Although Lin Xia had never experienced this kind of experimental disaster, she had seen it before.

Twenty minutes later, a bottle of ideal lake green potion appeared in front of Lin Xia.

Lin Xia shook it gently and nodded with satisfaction. Babel's element theory was indeed very useful.

"Now we have to start studying the ratio of elements to see which element has the effect and how much of it should be added to achieve perfection, which can further save materials."

While Lin Xia was studying the theory of elements, the Ministry of Magic took action again.

This time, they used the Glowing Candles to conduct a large-scale exploration operation in the world of evil gods.

There is almost no sunlight in the evil god's world, and it is shrouded in black fog all year round.

Many wizards explored in the black fog and couldn't tell what was coming towards them, so they were caught.

They had used some auxiliary items to clear the way before, but unfortunately the effects did not last long and lost their effectiveness in less than 10 minutes.

And during the 10 minutes of exploration, if they did not temporarily establish a safe gathering point and stayed outside alone, they would soon be swallowed up by the things hidden in the black fog.

This means that within 10 minutes they not only have to explore outward, but also have to go back and forth.

As for establishing a safe gathering point, this is very difficult.

Only high-level wizards are capable of doing this. Ordinary low-level and mid-level wizards do not have enough magic power to support the consumption required to establish a gathering point.

Of course, not every wizard who enters through the gap in time and space will land in a black fog.

Some wizards can still descend on the gathering places of towns in the evil god's world. The towns can see sunlight, but the daily sunshine hours are relatively short.

Wizards who explore towns and villages encounter different difficulties.

Now that we have the glow candles, the Ministry of Magic will first solve the problem of exploring the black fog. (End of this chapter)