The Magical Principles of Natural Philosophy at Hogwarts

The weather is getting cold.

Erwin borrowed the Marauder's Map from the twins and studied it for a few days, and found that his initial judgment was wrong.

The main function of the Marauder's Map seems to be to permanently maintain a large locking spell covering the entire Hogwarts, but the problem is that even the simplest locking spell that can be directly blocked, such a large range, such Many targets also mean a huge consumption of mana.

Erwin couldn't find any runes on the Marauder's Map, which meant that its functionality and mana reserves were based on its material—this was even more unreasonable, no matter how you looked at it, it was just ordinary parchment.

Unless... there's an additional host, and the Marauder's Map is just a display.

This should be right, Hogwarts must hide a huge secret, Erwin tried it on the first day he came to the school, the whole school was shrouded in a huge range of electromagnetic shielding spell, and now it can be confirmed that it exists Locking spell.

Interesting, the school itself is an amazing magical creation.

Then the creators of the Marauder's Map, Moonface, Prongs, Padfoot, and Wormtail, how much do they know about this school?

Erwin was suddenly interested in the true identities of these seniors.

He returned the Marauder's Map to the Weasley brothers, he didn't really need it other than to make sure of Headmaster Dumbledore's movements, and let the Marauder's Map be passed down from generation to generation in the hands of problem students at Hogwarts Bar.

Erwin's learning progress continued in an orderly manner. As a first-year student at the bottom of the academic spectrum, what he should do is to absorb knowledge as much as possible instead of questioning or thinking about other things.

The complexity of medical magic made Erwin realize the importance of defensive spells. If he is not injured, he will not need treatment.The Armor Charm can defend against general damage, but it needs to be released actively is the biggest shortcoming. Erwin really wants to turn it into a permanent passive state, but unfortunately, with his current level of Charms, he doesn't even have a clue. No.

The basic healing spell still needs to be learned. Although it has relatively large limitations, it can indeed treat general wounds quickly, and there must be a lot of places to use it.But Erwin soon encountered a problem, how to practice.

The lack of practice subjects should be another major reason why Hogwarts does not teach Medical Charms, and Erwin speculates that only St. Mungo's Hospital can provide complete medical training.

It sounds like a good way to give yourself a cutting spell and then try to heal it, but not to mention the torture, if you accidentally make a mistake while chanting the spell, it will be yourself who suffers.

After thinking about it, Erwin decided to go to a professional. He ran to the school infirmary and asked Mrs. Pomfrey if she had any suitable teaching aids for practice.

Madam Pomfrey was surprised that a first-year student made such a request. She rejected Erwin's application to treat other students without hesitation, and then gave a very professional suggestion: go to Hagrid and ask for a chicken .

chicken?Erwin didn't react for a moment.

"All the animals used in Hogwarts to practice spells are provided by Hagrid." Madam Pomfrey applied ointment to a boy with burns and blisters on his face while talking, and he screamed in pain.

Many people looked down on the half-giant gamekeeper, but they didn't know how much he had quietly contributed to Hogwarts.

Erwin and Hagrid still had a little friendship, although it was limited to greetings during the morning run, but Hagrid was very enthusiastic, and immediately grabbed a majestic rooster from the chicken coop after learning of Erwin's request.

"Shall I get you a chicken coop?" Hagrid asked, the rooster he was holding with its claws like a sparrow in his hands.

"No, I'm just practicing the spell here." Erwin said hastily, "And I won't hurt its life...it should be."

So in the next few days, Erwin would come to Hagrid every evening at dusk, find a chicken to practice the healing spell, and then have dinner with Hagrid. The main course was the chicken that died from the cutting curse.

Hagrid can only talk to his hound named Fang most of the time, so it's nice to have someone willing to chat with him, even if it's just a child.He and Erwin talked a lot about his job, his life, his pets.He not only has to keep the keys of Hogwarts, but also raises many magical creatures in the Forbidden Forest.

He mentioned that he was expelled from Hogwarts when he was 12 years old, and then stayed and worked here, but would not elaborate.

Erwin discovered that Hagrid had a pure heart under his rough appearance. He estimated that the mental age of this half-giant might not exceed 15 years old. This is really strange, and it may have something to do with his past experience.

Such people can be trusted, but they may not be reliable in doing things.

During the period, Erwin also ran into Harry Ron and Hermione, and the three-person team was surprised when they saw him in Hagrid's cabin.

On the fourth day, Erwin successfully removed the incision on one hen, and just to be on the safe side, he used the cutting spell to open its chicken breast again, and then healed it.

The hen was relieved to have escaped the tragic fate of bleeding to death and being turned into a roast chicken, and Erwin was relieved, now that his stomach felt a little queasy at the sight of the muscles.

"Got it?" Hagrid was also very happy. "I just need your help. You remember Buckbeak?"

Erwin nodded. Hagrid had told about his hippogriff, which was somewhat similar to a griffin, but one had the torso of a horse and the other a big cat.

"It's almost hippogriff mating season, and I've found a mate for Buckbeak, a female winged beast called Ur-Ula, and I want to see if I can have a litter of cubs." Hagrid Scratching his head, looking a little embarrassed, "But Ur-Ula is very grumpy, and Buckbeak got scratched yesterday while getting close to her."

"Well, Hagrid, the Healing Charm can only be used to treat relatively simple injuries."

"Buckbeak just suffered some flesh wounds. I applied some medicine to him, but the effect was not good. He always wanted to rub it off."

"Then let me try."

"Thank you very much." Hagrid smiled happily.

He took Erwin to a clearing in the Forbidden Forest, where a huge creature was chained. Buckbeak looked quite agitated, and the sharp claws on his feet proved that it was not low in danger.

"Bow to him so you can get close to him," Hagrid said in a low voice to Erwin.

Ignoring the advice of professionals was obviously not a wise move, so Erwin did.

Hagrid made coaxing noises, and walked over to put his arm around Buckbeak's neck to soothe him, while pointing to Erwin where the animal's injury was, which was on the inside of the hind leg.

It was an awkward spot, and if it wasn't fixed soon, a litter of winged pups would only exist in Hagrid's dreams.

Wary of being kicked all the time, Erwin knelt down and looked at the wound, and it was indeed just a laceration.He pointed his wand at the wound, "Healed as before."

The rolled wounds began to heal, and new muscles and skin were quickly formed to fill the wounds. This spell is still versatile and can work on most creatures.

Buckbeak's body trembled and he let out a short cry.

"You're all right, baby." Hagrid rubbed its head.

Buckbeak turned around, rubbed his big head in front of Erwin, and Erwin stroked its feathers. He liked small animals, although the one in front of him was one that was relatively small compared to Hagrid. small animals.

Saying goodbye to Hagrid, Erwin had a hunch when he left that he might be regarded as a full-time veterinarian by Hagrid in the future.

Harry Potter had to learn the spell as soon as possible, he reminded himself.

It will be Christmas in a week, and it has snowed for three or four days in a row, and the temperature has become very low.

Sabi brought a large package to Erwin, which contained three custom-made dragon leather vests, which had a very good thermal effect, but could not completely resist the severe cold.

So Erwin has to make some changes to it.

The three runes of Feifu, Turisaz, and Kanaz can form a stable sequence. Erwin engraved it on the inner lining of the dragon leather vest, and then applied the refined primary evocation potion, Finally, apply the constant temperature spell, so that the magic pattern array will keep the spell constant.

So a simple magic item was born, and Erwin currently only has the ability to make this kind of thing.This vest is enough for him to maintain his body temperature in the Forbidden Forest without wearing a heavy cloak.And compared to constantly using constant temperature spells on oneself, the magic power consumed by the dragon leather vest can be said to be negligible, which is where the value of magic items lies.

If the vest had the constant armor charm on it, it would be a very good piece of armor.

Potion and rune engraving actually belong to alchemy in a broad sense, and the two complement each other to a certain extent.The magic society has developed to this day, and there is already a set of relatively mature crafts, but the requirements for the perception and manipulation of magic power are quite high. Hogwarts' rune courses do not begin to teach the production of specific magic items until the seventh grade. This elective course can only be taken in the third grade.

For those who are really talented, the progress of regular courses is too slow. Erwin also tried to audit the rune courses, but to be honest, the results were very low, and most of them were grammar and document translation.

The professor of each subject is responsible for the whole school's curriculum, so Erwin has no reason to ask Professor Bathhida to teach him individually like Professor Flitwick did. Self-study is his best choice.

Such a constant temperature fire dragon leather vest can be sold for 25 galleons. Although the price is high, considering the cost of materials and the buyer's low price, the proceeds from the sale may be less than five gold coins. I am completely sorry for Erwin's energy consumption. After all, elementary magic The added value of items is relatively low and the commodity is not scarce enough to be a way to make money.

Of course, Erwin didn't want to use this to earn pocket money. He wore a constant temperature vest for himself and another for Neville. After all, the Forbidden Forest is not as warm as spring in the classroom with a magic fireplace. They practiced configuring the magic vest. The medicine always finds a way to keep himself from being frozen.

As for the last one, Erwin gave it to Hermione.

Looking at Miss Nutria's surprised eyes, Erwin shrugged his shoulders, "Don't get me wrong, I just can't bear to see you shivering in the cold outdoors, so let's treat it as an early Christmas present."