Hermione Granger's face clearly showed a look of disapproval.

If the professor on the podium was not Rozier, she must have stood up and retorted.

Of course, now, her dissatisfaction can only be held back in her heart.

"An upright wizard, no matter how terrible the destructive magic is, as long as he is doing it for the greater good, then the magic he uses cannot be called 'black magic'!" Professor Rozier said with a serious expression.

"And a wizard with a dark heart, no matter how high-sounding the magic he uses, if his actions infringe on the interests of the wizarding world, then there is no doubt that 'black magic'. ”

Then there was only a rustling sound, and many of the young wizards began to take notes.

"To evaluate whether a magic is 'black magic', it is the path that needs to be referred to in terms of its movements, not to the itself. Professor Rozier continued:

“...... For example, when an evil dragon breaks into Hogsmeade and is about to wreak havoc on a village, a powerful wizard kills it with a spell that is so extreme and destructive that it cannot be called a dark magic ......"

“...... And if you are a high-sounding wizard, you will never use any extreme spells in your life. But he is in the company of giants, goblins, and even Muggles, threatening the safety of the entire wizarding world at any time and at any time...... Then any magic he uses, there is no doubt that it is black magic!"

Professor Rozier paused, then continued:

And the latter is the so-called dark wizard...... Wizards who have betrayed the wizarding world, colluded with other intelligent beings, and threatened, and possibly even seriously undermined the interests of the wizarding world...... Among them, exponents such as the infamous Dark Wizard Dumbledore, who was defeated by Headmaster Grindelwald fifty years ago. ”

Next, Professor Rozier's gaze turned to Hermione Granger.

"Of course, Miss Granger is not entirely wrong. The definition of black magic she spoke of was the definition that black magic had fifty years ago. ”

"But as times have changed, black magic and dark wizards have been redefined. The magic that causes great pain and suffering to the caster, the magic that is extremely destructive, is what we now call 'extreme magic', and the wizards who use it are called 'extreme wizards'!"

Professor Rozier's voice can be said to be resounding.

Hermione nodded a little incomprehensibly.

Then she began to brush and brush, and quickly began to remember.

......

After this short opening statement, the Defence Against the Dark Arts class officially began.

"Turn your textbook to page 287. Professor Rozier said without question, "What we are going to learn today is-"

"Vampires!"

Matthew flipped through the textbook and glanced at the table of contents at the same time-

Vampires are pretty much the last few chapters of the entire Dark Arts: Guide to Self-Defense. It seems that this Rozier professor also has a habit of lecturing in a way that does not follow the usual order.

"Vampires are humanoid magical creatures and rather evil creatures of darkness. They are usually nocturnal and feed on the blood of living things, and during the day they are generally not allowed to go outside. Professor Rozier began her lecture:

"Under normal circumstances, vampires have the same appearance as Muggles and wizards. However, they are pale and have fangs in their mouths, which they use to bite the throats of other creatures and suck blood. ”

"The blood of living creatures is a must for vampires, and if they don't ingest enough fresh blood for a certain period of time, it can be very fatal for them!"

"They tend to live longer than Muggles, or even many wizards. For example, the famous Hungarian vampire Lady Camilla lived to be 196 years old, while the American vampire Amarillo Lestov was born in 1776 and did not die until 14 years ago. Even when they die, they look almost the same as Muggles and wizards when they were younger. ”

"At the same time, they have some resistance to magic, and some spells that are dangerous for wizards have little effect on them. If you encounter an adult vampire in the wild, only a very experienced adult wizard will be their opponent!"

As for the characteristics of vampires, Professor Rozier described them in great detail.

Not only does she describe the characteristics of vampires, but she also teaches her classmates how to banish or kill a vampire.

"Vampires have a natural aversion to the smell of garlic, which is their only flaw, and carrying garlic with them is a great way to banish them. However, some of the weapons used by Muggle legends against vampires, such as silver, crosses, holy water, etc., do not cause any real damage to them. ”

"At the same time, the horror of vampires is not that they are assimilated by their blood, as described in some Muggle writings. The assimilation of vampires requires a very complex process, which they call 'first possession'. However, when faced with some hungry vampires, wizards or Muggles can easily die from being drained of blood. ”

"There are many ways to kill a vampire...... For example, decapitation, or complete incineration of its body, and stuffing large amounts of garlic into vampires' mouths can also inflict great, even fatal damage. ”

During the entire class, the class barely had time to look up.

They all tensed their nerves and tried to record as much as they could what Professor Rozier had said.

The bell rang for the end of class, and Professor Rozier finally stopped:

"One essay per person on how to identify and kill a vampire, at least two feet...... Handed over the following Monday. ”

She said lightly, and then walked out of the classroom gracefully.

......

The tension finally disappeared.

Everyone breathed a sigh of relief, Defence Against the Dark Arts was undoubtedly the most rigorous course they had taken this week.

Just as Matthew was about to pack his things and leave.

"Matthew!" a crisp voice called out his name, it was Hermione Granger.

"Hello, Hermione. Matthew looked at her with a smile.

Draco Malfoy was also packing up and leaving, he glanced at the two men who were talking, and walked out of the classroom.

Matthew and Hermione have been friends since the Leaky Cauldron, and the two exchanged a few pleasantries.

By the time there are only a few students left in the classroom—

"Matthew. Hermione lowered her voice, "Do you feel ...... What is Professor Rozier's hint at in this lesson?"

"Hint?" Matthew shook his head without thinking, "I don't think so. ”

"Professor Rozier is the Deputy Headmaster of Hogwarts, if something really happens, how can she not tell us publicly?"

"You're thinking too much, Hermione!"

Matthew smiled and walked out of the classroom.