"Found it!" Maka couldn't help being happy to quickly access the information she wanted.

He looked at the contents of the book line by line and read silently in his heart: "fairy, magic part level: XX, fairy hands are holding a magic wand like a branch..."

At noon that day, Maka couldn't wait to open one of the books he ordered, the book of potions. This is an ancient book published in the 16th century. If he hadn't seen it on an old book list in Licheng bookstore, he would have missed it.

In this potion book, Maka saw a very interesting material - fairy wings.

This is a very rare potion material. Although fairies will not die because of losing their wings, they are naturally vain, but they will never want people to take away their wings.

"... the wings of fairies have unique magical properties. They can make fairies shine when they need to show off, or hide their whereabouts when they need to hide."

"If you can use this wing as the main material for blending, you may be able to prepare a very special stealth agent," Maka couldn't help guessing.

How to make a person invisible is a very attractive problem. In addition to making complex invisibility vests and highly difficult phantom body spells, only a few magic drugs can achieve the effect of allowing an adult wizard to hide his body relatively perfectly. These magic potions, without exception, are very expensive - some of their ingredients are very difficult to find.

This led Maka to "why not develop a new stealth agent", which seems impractical.

Although Maka himself knows that he may not be sure, he sees it as an opportunity to challenge himself.

Opportunities are created by ourselves - Marca always thinks so.

"Excuse me, do you know where the books about 'how to cultivate valerian' are placed." just as Maka was about to put the books back on the shelf, he suddenly heard a slight voice from behind.

Because the sound was too light, Maka couldn't help but have the illusion of "maybe she heard wrong". To confirm the idea, he went back and confirmed it.

"Well, what did you just say?"

Behind Maka, a young girl covered with a wide Slytherin robe stood quietly in front of her. On her head, she also wore a wide brimmed pointed hat, which covered more than half of her face. Maka could only see a pair of pink and delicate lips.

"Excuse me, do you know where the books on 'how to cultivate valerian' are placed?"

The petite girl repeated what she had just said word by word. The tone without fluctuation reminded Maka of Professor bins who taught the history of magic.

"Er, well, the herbalism books should be over there." Maka subconsciously pointed to the opposite shelf area not far from here.

As soon as the voice fell, the mysterious girl of Slytherin immediately turned and walked over there without even saying "thank you".

"What's the situation?" Maka stared at the girl's back and felt ignored.

It seems that in the girl's eyes, Maka is like a tree on the side of the road. She doesn't need to be noticed.

He tilted his head and thought for a moment. At least in his memory, he didn't find the existence of the mysterious Slytherin girl.

"Well, forget it. You'll know if you have the chance to ask. It seems that it should be a freshman of this year?" Maka shook her head and then walked to the library of magic medicine.

Maybe he will come to the library often in the future. He found that the amount of books here is really amazing. If he searches carefully, he will certainly gain a lot.

In the next few days, Maka spent most of his rest time in the library on the fifth floor, except that he shuttled between the classrooms of various subjects step by step with other students.

Most of the time, students who come to the library can see such a scene——

Near the long reading table near the shelves of potions and herbalism, there is a place that is always flooded with a large number of books. Those books are big or small, thin or thick, but most of them are theoretical books that senior students and even teachers will borrow.

Mrs. pince, the librarian, usually stared at the position not far away, as if the people sitting there were trying to invade her children, with sharp and angry eyes.

If you want to find out who's sitting there, you have to go around the back to see clearly, because the front is completely blocked by the stacked books.

Inadvertently, Maka has become a topic figure among Hogwarts students.

This is not only because of his eye-catching behavior in the library, but also because he is the only non Slytherin student who can say a few words with Snape without being ridiculed.

On this point, even miss know it all who excelled in potion class can't do it.

"That's just because Hermione is a Gryffindor." Marca shook her head and replied when Ernie told Marca about the rumor.

As a student, Miss Granger is undoubtedly quite excellent, and Maka has to affirm her great efforts. But still, he doesn't think this kind of learning method is a suitable choice, especially when you are a wizard.

During this time, the more he studied deeply, the more he affirmed this point - Magic knowledge is too broad and profound. The in-depth study of magic medicine alone may exhaust his life.

……

When one is immersed in something, time passes very quickly. Unconsciously, a week passed in a hurry.

During this time, Maka did not meet the mysterious Slytherin girl again, but his understanding of magic medicine was advancing all the way.

Maka has already fully understood the magic medicine books he ordered, and he has made many major breakthroughs in the "new stealth potion".

Maka has come to a conclusion about the study of "how Fairy Wings achieve the disappearing effect". This is a new type of "optical invisibility" different from invisibility cloak and phantom body spell, as well as "environmental integration invisibility" with several ancient potion formulas - "perceptual blocking invisibility".

This is undoubtedly a very effective means of stealth. Although you have not changed objectively, others can't "feel" your existence.

"But this thing is really expensive!" Marca leaned weakly on the table and sighed heavily.

In his calculation, he found that if a wizard wants to completely cover up his existence, the amount of wings in the formula must reach a very high value.

"'fairy's wings' one 8 gallons, three 24 gallons; plus other ingredients and catalytic agents, the cost of a bottle of finished products is 43 gallons..." after that, Maka sighed again, "it's robbery!"

"... wait! Why do I have to worry about this!" suddenly, Maka suddenly stood up as if she had found a new world.

"No noise in the library!" cried Mrs. pince hysterically.

"... she doesn't care whether she is noisy or not." not far away, some Ravenclaw girls were whispering there.

Marca apologized awkwardly to Mrs. pince, and then sat down again in the pile of books.

No doubt, what does a new potion with practical effects mean? This means wealth!

Compared with the rarity and expensive of only a few stealth potions, Maka's magic potion is cheap enough. In the whole magic world, the price of rare potions remains high. Potions masters like Snape who created and improved several precious potions with remarkable effects are very popular.

If Snape was not involved in too many stories, he would have been an exclusive consultant in a potion manufacturer or noble family.

What do you have without money? Since ancient times, which potion master is really short of money? As long as the sales channels are carefully selected, it must be more than enough for Kim Garon to come and just support him to continue his research. Speaking of trading, this is what Maka is best at.

Early the next morning, he asked MafA to send him a shopping list. He wanted to immediately start trying to prepare this magic medicine. Before that, there are several problems that will be encountered in the actual preparation, which must be solved first.

"Benedictine Benedictine"

During the lunch break, Maka knocked on the door of Professor Snape's Potion professor's office for the first time.

"Who?" was still the gloomy and indifferent tone, which made the visitors feel that they were not welcome by the host here.

"Professor Snape, it's me, Marca McLean."

"... come in." the voice inside paused, and then replied.

Marca turned the doorknob to open the dark room, and then walked quickly in.

"Professor Snape, I have a few questions about potions. I hope I haven't bothered you." Marca carefully worded to be as polite as possible.

Snape looked at him without expression, and then said with a trace of impatience, "ask."

"In fact, I encountered several questions in the process of studying magic medicine books. For example, about the second law of Hester, how to deal with the anti magic reaction that will occur in the actual preparation process so that the original medicine solution can continue to maintain a stable magic form?" Maka nodded and quickly raised the problem.

"Hum." snape frowned and snorted coldly.