The Magical Principles of Natural Philosophy at Hogwarts

"What can a vampire do for me?" Erwin mused as he left the principal's office.

Passing through the corridor and turning into the library, Erwin showed Mrs. Pince the note Dumbledore gave him before leaving.

The skinny librarian brought the note closer to his glasses, double-checked that the principal's seal on the note was real, then turned around and disappeared behind rows of bookshelves without saying a word.

Erwin waited for more than a minute. Mrs. Pince brought two books and threw them to Erwin with an indifferent expression, "You'd better not let other students see you read these books." She reminded coldly road.

Erwin held the two books in his hands. Their cold shells and sharp spikes seemed to be designed to give readers a dangerous first impression.

"The Scarlet Curse", "Blood and Punishment".

Since he wanted to use a high-level vampire, he certainly couldn't be ignorant of blood magic.Although it is said that human wizards can only grasp some fur at most, it is still necessary to do some theoretical research.

What Erwin did not expect was that there were books about blood magic in the Hogwarts library. The restricted area was familiar to him like home. He could be sure that he had never seen these two blood magic books before. .

This means that in addition to the restricted book area, there is also a "hidden book shelf", and the books on it are the books that must be strictly restricted in the true sense.

Opening the title page, an obscure atmosphere rushed over. The material of the pages should be some years old, and the fonts don't seem to be printed in batches, which means that they may be orphan copies.

Hopefully the knowledge they record is not outdated.

Erwin put away the two books calmly. There are ready-made tools for making magic books in LeMay's cabin, and Esmeralda can complete the duplication of the two books in half an hour, so that he can Save it for later research.

It's time for lunch again, three meals a day are always indispensable.

When Erwin walked out of the library, he heard a loud child's voice, "Mr. Harry Potter!"

For a moment, everyone's eyes turned to that side.

The famous boy looked unlovable, "You really don't have to be so excited every time you see me, classmate Colin..."

"Sorry," said freshman Colin Creevey hurriedly, holding an old-fashioned camera with a big flash. "Can I take some Halloween-themed photos of you?"

"Ah—that, I remembered that I left something in the dormitory and forgot to take it out, so I'm leaving first." The boy who survived the catastrophe made an excuse extremely skillfully, and then fled quickly.

He should have been annoyed by Colin many times.

Colin's eyes were a little lost.

"The one in your hand... can you use the camera in the school?" Erwin asked suddenly.

Colin turned around in surprise and looked at the senior who was a head taller than him, "Well, it took me a lot of effort to get my father to agree to buy it for me."

"Can you take a look at it for me?"

Colin was very straightforward and passed the camera over.

Erwin fiddled with it, and took a photo casually. After a few seconds, a photo popped up from the bottom of the camera. It was black and white, and like the illustrations in most books, it was a moving picture.

The basic imaging principle of the so-called magic camera should be no different from that of ordinary cameras.

"It doesn't feel as good as a normal camera, does it?" Erwin smiled at Colin.

Just like the Hogwarts Express, which is still a steam train, this type of camera seven or eighty years ago shows that there were a few wizards who saw the development of conventional society and used magic to improve a certain product, but the number of such people was very small. Less, something like this is very rare.

The development speed of wizarding society with a seriously insufficient population base is naturally far behind that of conventional society. It is not difficult to understand why many things used by wizards are far behind the times from a normal perspective.

The little boy's eyes lit up immediately, "Your parents are also Muggles?"

Erwin nodded.

The same family background gave Clinton a sense of kinship.

"Lend it to me for two days, and I can make this camera take color photos." Erwin shook the antique thing at Colin.

"Really?" Colin was taken aback.

"You can let me try it." Erwin patted him on the shoulder, "If it breaks, I will directly pay you a brand new one."

"Then... okay." Colin still hesitated, after all, the little boy was reluctant to part with his beloved.

At lunchtime, the auditorium was filled with Halloween vibes, with giant jack-o'-lanterns floating in mid-air.

In this case, Harry Potter had no way to avoid Colin Creevey, so he could only deal with this little fan with a wry smile.Erwin noticed the argument between Percy and Ron.

"My stupid brother." Percy's patience seemed to be exhausted, "Don't you understand that you can't spend these Galleons even if you have them? As long as you buy anything new, mom will know, and then press Where did your money come from?"

Ron froze, he really didn't think about it.

"Then the money can only be kept?" He pursed his lips a little foolishly.

"The best way is to use it for investment, which I discussed with Erwin... But you don't need to worry about it, how about it, I will buy you a new wand, and use the money I earned from my part-time job during the holidays." Percy said a few times The words sent Ron away.

In fact, Erwin and Percy were not talking about investment in the pure sense. After learning that Percy was interested in working in the Ministry of Magic after graduation, Erwin suggested that he use the money as start-up capital.

"By the way, if you want a new wand, don't mention it to George and Fred." A somewhat worried Percy said in Ron's ear again.

Erwin not far away smiled without saying a word.

After lunch, Erwin walked up to Melanie and whispered to her, "Come with me."

The girls around Melanie immediately put on a smile that was not a smile. In their eyes, this young couple was actually dating publicly.

Melanie could only smile cooperatively.

In broad daylight, Erwin took her into the Forbidden Forest. After making sure that there was no one around, he took out his wand and pointed at the female vampire.

Melanie's eyes were a little helpless, looking pitiful.

The woman was indifferent to playing Erwin again, but he put down his wand again. Although the wand was indeed useful, he should minimize his dependence on it if possible.

He tried to sense the rune shackles on Melanie directly.Finally got a response after many attempts, 'Natxize of Destiny', core sequence response.

Melanie's wrists and the back of her neck were covered with rich golden light, and her expression became distorted and painful, and as the golden light became brighter, her expression also became flustered, with pleading in her eyes.

Erwin stopped debugging the rune shackles.As Dumbledore said, whether it is increasing or weakening the shackles of the rune, it can cause harm to Melanie. The status quo is just enough to maintain the balance, and as long as this balance is broken, Melanie will lose her life.

In other words, he has actually mastered Melanie's life and death.

Then there is no doubt that he is in an absolute upper class to her.

"Are you able to control these runes so quickly?" Melanie's voice was full of resentment.

"In essence, I don't really want to embarrass you." Erwin said casually.

Of course, the existence of Flamel's Cabin could not be shown to the female vampire, so he sent her back directly, and Melanie was not qualified to express objections.

It is not difficult to change Colin's camera to a color one. It only needs an extra rune code. Erwin spent most of the afternoon tinkering with his new projectile weapon, and it has already achieved initial results.

At night, go back to the castle for dinner. Although Halloween is also celebrated, this festival does not seem to be as important to wizards as Christmas and Easter.Muggles are happy to dress up as ghosts, zombies, vampires and other monsters on Halloween, but wizards know what is real, and dressing themselves up like that is as funny as wearing animal skins.

Therefore, Hogwarts on the eve of Halloween, in addition to some festive decorations, means that the dinner is a little bigger than usual.

During the meal, Erwin noticed that Harry, Ron, and Hermione were not there. According to Harry's roommate Dean Thomas, they were invited by Nearly Headless Nick to his memorial dinner.

"That is to say, ghosts know how long they have been dead, and they at least retain some sense of time."

"Although it is said that communicating with ghosts will make you find that they are no different from ordinary people, in fact, their memories can only last a short time except for the events of their lives." Melanie said.

Indeed, Nearly Headless Nick has been at Hogwarts for 500 years, but he can't name a few headmasters.

Melanie pulled Erwin's sleeve suddenly, "Ginny is gone," she whispered.

"She said she wasn't feeling well, so she went back to the dorm early," Percy told Erwin.

Erwin certainly remembered the girl who hissed at the faucet the other night, but when he'd mentioned it to Percy the other day, the brother knew nothing about his sister and was adamant that Wee No one in the Sly family was a Parseltongue.

"Only descendants of Slytherin can understand Parseltongue. How could our family..."

After eating and drinking, the students left in twos and threes. Erwin and Melanie were preparing to go back to the Gryffindor Tower, but as soon as they left the auditorium, they heard a roar.

All the students recognized Filch's voice.

It was the women's bathroom on the second floor again. When they arrived at the scene, what everyone saw was a cat with a whole body stiff, the three of Harry who were at a loss, and Filch who was distraught.

There are words on the wall next to it, written in red dye that looks like blood:

"The chamber of secrets has been opened, those who are enemies of the heir, be vigilant."

"An enemy of the heir?" Drago Malfoy exaggeratedly screamed, and looked at Hermione and Erwin with undisguised malice. "It's you, of course, Mudblood."