The little lions of Gryffindor have been looking forward to Moody's class for a long time.

The young wizards who have already taken the Defense Against the Dark Arts course have given his class wide acclaim, with some even saying that it is only slightly worse than the down-and-out version of Professor Lupin, or even better than the handsome version of Professor Lupin.

In the room, all the curtains were drawn.

For a moment, the little wizards thought they had arrived at the high tower, walked into Professor Trelawney's office, and lit a strong and even choking incense.

Harry's senses were more sensitive than those of ordinary people. The extremely pungent smell made him feel a little suffocated and almost choked his tears.

"Professor, can you open the window?" Hermione immediately stopped and spoke to Moody who was sitting in the teacher's seat.

Moody shook his head. "I'm afraid not."

"The next class I'm going to teach will require the assistance of this calming aromatherapy."

Harry stretched out his hand and fanned his nose. "This incense is of poor quality. Perhaps you should ask Professor Snape for advice. The method of use is not correct. Burning so much at once will only make the effect worse."

"I think I understand these things better than you." Moody raised his claw-like artificial leg and stomped heavily on the podium, making a dull "thump" sound. "Hurry up and sit down, the class is about to start!"

Hermione frowned, and so did Ron, and the three of them sat down in the front row.

Just took out the book.

Moody waved his hand and said, "Put the book away. You won't need it when you encounter dark creatures or dark wizards in the future. If the first thing you think of is the book, you are doomed to die."

The little wizards put away their textbooks excitedly, as they loved practical classes.

The theory is good, but it is too empty and boring.

Moody limped out from behind the podium and stood in front of the desk farthest from Harry. "You had a great professor last year. I received a letter from Professor Lupin. He gave a very detailed account of your progress in this course."

"But Defense Against the Dark Arts is by no means as simple as dealing with dark magic creatures."

"In fact, most wizards will never encounter many dark magic creatures in their lifetime. Even for me, the number of encounters is pitifully small. The real threat is those dark wizards, including those who want to become dark wizards but have not yet become dark wizards."

"In my class, I will teach you how to deal with the dark arts."

The young wizards held their breath.

Hermione frowned: "Professor, that's not what we should learn. We will learn it in the sixth grade..."

Moody waved his hand. "Ms. Granger, please be patient. I know I am not the kind of idiot who would not even check the teaching schedule before teaching, but Professor Dumbledore and I have praised your courage."

"I think he thought it was time for you to see these things."

At this point, he paused and looked at Harry meaningfully, "And I think a lot of people heard the news before school started. At the Quidditch World Cup, a group of dark wizards caused trouble. They even summoned the Dark Mark of the You-Know-Who. There is no doubt that they are a group of evil dark wizards, and they tortured several Muggles severely."

"Thanks to Harry, he drove the group away before the Aurors arrived, and also caught the two culprits."

The young wizards looked at Harry.

Harry stared at Moody.

"The situation is very tense now. No one knows when the dark wizards will become restless again. I have experienced this twice in my life!" Moody tapped the ground with his claws anxiously. "Ms. Brown, what I am saying now is very important. Don't play tricks in my class."

Lavender was startled and quickly put the things away.

Moody's fake eye was still staring at her, and his other eye swept over the young wizards. "If a dark wizard wants to cast a spell on you, he won't follow the etiquette of dueling, bow respectfully to you, and then tell you the spell he is going to cast."

"I won't use spells like Stunning or Petrifying, which are almost harmless."

"So, can anyone tell me what are the worst spells in the wizarding world and the ones that carry the most severe punishments when used?"

Harry said, "Professor, do you mean the Unforgivable Curses?"

"Of course." Moody shook his head and looked at him. "Mr. Potter, can you introduce him to us?"

"I don't think this is a good idea." Harry said bluntly, "Does Professor Dumbledore know about this?"

"This is my class." Moody took out his artificial leg and stomped the ground a few times. "I think it's a good time now."

Harry stopped talking, and the amulet pressed against his chest trembled slightly.

Moody stared at him with his fake eyes. "It's the same question as before. Can anyone answer it?"

Several young wizards raised their hands.

"Mr. Weasley." Moody pointed out a name.

Ron stood up. "I remember there was an Imperius Curse. My father mentioned him, and this time Malfoy wanted to get away with it, and he used this excuse."

Moody nodded approvingly. "Aha, of course. Back then, this spell caused a lot of trouble for the Ministry of Magic."

He waved his wand lightly, and a glass bottle flew out from the cabinet on the podium. The bottle cap was unscrewed as it flew, and a fist-sized spider fell onto the table almost together with the bottle.

Ron almost took out his wand subconsciously and threw a blasting curse at him.

Moody pointed his wand at it and uttered the spell with great practice: "Soul out of the body."

A faint cold magic penetrated into the spider's body, merged into it, and disappeared. Only an extremely faint breath connected Moody and the spider together. If Harry was not in such a close range, he would not even be able to sense this breath.

Moody moved his wand.

The spider jumped up and performed an unusually gorgeous dance with a stretching beauty that was impossible for a spider to have. It jumped from one end of the classroom to the other, and finally jumped back to Neville's desk, hugging its body with its front claws and doing a cheerful tap dance.

The little wizards laughed and some applauded.

"You think this is funny?" Moody raised his eyebrows and looked at them coldly, "How about this?"

He waved his wand again.

The spider slammed into the wall, once, twice, until it smashed its head into pieces, and it was no longer angry.

The little wizards' faces turned pale.

This kind of death is too tragic.

Harry waved his wand and the spider's body disappeared.

"Mr. Potter, are you so merciful to it?" Moody's fake eye was still fixed on Harry, and he spoke almost as soon as Harry moved.

"It's good that students know the harm it can cause." Harry said slowly.

Moody snorted coldly: "As you have just seen, the person under the curse will be completely under my control. He will do whatever I want him to do, and it will not leave any traces. No wizard has ever found any evidence on a person under the control of the Imperius Curse to prove that he is controlled."

Harry looked serious.

That faint breath dissipated immediately when the spider died.

"Although the Imperius Curse has no counter-curse, it can be resisted. This requires extremely firm faith. I will teach you how to do it." Moody knocked on Neville's desk. "Then who else knows what other Unforgivable Curses there are?"

He lowered his good eye to Neville, who was pale. "Mr. Longbottom, perhaps you can give me an answer?"

Neville stood up tremblingly, gnashing his teeth and forcing out a few words from the gastric tube: "Crucia."

Moody said nothing, but waved his wand. When the spider landed in front of Neville, he spoke and continued, "The Cruciatus Curse is the cruelest of the Unforgivable Curses."

"I have to zoom in so you can see it clearly."

He chanted the spell "Quickly enlarge".

The spider immediately expanded to the size of a human head. Ron was startled and took out his wand. He took several deep breaths and suppressed the urge to chant a spell.

"Crucio!" Moody chanted the spell to the spider with extreme seriousness.

It immediately began to struggle, its claws rubbing against the tabletop, making a creepy crunching sound. Harry waved his wand to eliminate the sound.

The spider was left struggling.

Neville's face became paler and paler, and his panic grew, with cold sweat dripping down his forehead.

Harry waved his wand again, and the table twisted and twisted to envelop the spider.

"Mr. Potter?" Moody asked in doubt.

Harry ignored him: "Neville, if you don't like it, you can speak up."

Neville's eyes were wide open, looking through the transformed wooden box into the depths of his more distant and older memories.

Harry waved a spell, and the Happy Spell fell on Neville. He encouraged him again: "Neville, if you don't like it, just say it out loud."

"I don't like it!" Neville gritted his teeth and spat out these words in a firm tone he had never used before.

Moody was startled. He turned his head and cast both his eyes over to Harry, looking at him meaningfully. "So does anyone know of other unforgivable curses?"

This time, only Hermione still had her hand raised.

"Miss Granger?" Moody called her name.

Hermione stood up and glanced at Harry: "Killing Curse."

The little wizards all became uneasy. They twisted their bodies and looked extremely uneasy.

"Yes, the Killing Curse, the last, most dangerous and powerful curse among the Unforgivable Curses." Moody grinned, as if he wanted to smile, but his scarred face made his smile look extremely hideous.

He flicked his wand gently, trying to undo the Transfiguration Charm on Harry.

But when the magic power invaded, the wooden box didn't react at all.

Harry raised his wand and tapped the table lightly. The wooden box disintegrated and turned into a wooden wall, blocking Neville and him at the table, revealing the dying spider.

Seamus tried to stand on tiptoe to see, but was caught by a vine, which pulled him and prevented his head from passing over the wooden wall.

Moody's expression didn't change. He raised his wand and pointed it at the spider: "Avada Kedavra!"

There was only a flash of dazzling green light and a burst of harsh and noisy noises, and the spider lay quietly on the table, lifeless. All its vitality was taken away by this spell in that instant.

"Mr. Potter, you don't have to be so careful. My hands don't shake." Moody continued to look at Harry.

Harry said expressionlessly: "Maybe you believe in yourself, Professor, but you have to admit that you are already over seventy years old this year and are no longer young."

Moody snorted coldly: "The Killing Curse has no counter-curse. Since it was created, only one person has been lucky enough to escape death from this curse, and he is sitting here right now."

All the young wizards continued to look at Harry.

The boy who survived and the savior of the wizarding world, these two titles of Harry Potter both started with his escape from the Killing Curse, although he has now grown to the point where he no longer needs these two titles.

"Mr. Potter is very worried, but I think he is obviously overthinking and projecting his own level onto you." Moody walked back to the podium. "In fact, these spells require very strong magic and emotions as a foundation."

"Except for Mr. Potter, with your level, even if you cast the Killing Curse on me, it would only make my nose bleed."

"But you must understand that these spells are the most common and customary means used by those dark wizards. There is still some time in this class. Let me teach you more, starting from the basics, how to resist the Imperius Curse."

"Every young wizard experiences it personally, then strengthens his faith and tries to get rid of it."

"Let me think about it. How about starting with Mr. Potter?"

The amulet vibrated a little more violently.

Harry stood up and stared at him. "I don't think so, Professor Moody. The Ministry of Magic's regulations prohibit the use of Unforgivable Curses on wizards. Even if this is a class, you have already done your best to show the little wizards."