"Professor Lupin, Dementors are not magical creatures, they are unwilling to obey humans, even if they are wizards, and they are more than cooperating with the Ministry of Magic."

To add to the persuasiveness, Dudley commanded.

"Pour me a glass of water."

The Boggart, who seemed to Lupin to be a 'Dementor', obediently floated aside, poured a glass of water, and handed it to Dali.

Dudley took the cup and didn't drink it, setting it aside.

"Look, it's really a Boggart"

Lupin ignored Dudley's explanation, his eyes fixed on the cup, and the water in the cup was rotting at a visible rate, and in a matter of seconds, it had become cloudy and frosty.

Lupin:???

'You're not kidding me?' Isn't this a quality of Dementors? ’

"Professor. The Dementors were all outside the castle searching for Sirius, and there was no way or reason for them to be in the castle. ”

Dudley's sudden words stunned Lupin.

After years of wandering, he understood what Dudley meant.

It's true that Dementors can't be at Hogwarts Castle, there are no Dementors in the castle, so this is a Boggart.

In fact, it doesn't matter if it's a Dementor or a Boggart, what matters is what you need in Defense Against the Dark Arts class.

"Can it really do it? Won't actively attack? Lupin looked at 'Boggart' and said with a little worry.

Dudley's confident tone answered him.

"Rest assured, it will be a qualified teaching aid."

Those who are not qualified have become 'philosopher's stones'.

During the Quidditch match, Dudley didn't catch more than thirty of them. Well, those who do not belong to the category of magical creatures, although they cannot be domesticated by the skills of the system, but Dudley uses the most primitive and concise domestication method - physical domestication.

This is the day he caught so many. The only one left.

It turns out that a low IQ is also beneficial, at least after physical domestication, there is basically no betrayal.

Dudley named the only one left Soul Hook.

Well, the Boggart who got the Confusion Charm and became a Dementor named Soul Hook.

"As long as it's willing to cooperate, I think our teaching progress will be much faster."

Lupin nodded.

Actual combat is always the best and fastest way to learn.

"And who wants to be the first challenger?" Lupin turned to look at the other young wizards.

He needed a demonstration, preferably a young wizard who was about to take shape with the Patronus Charm.

Little wizards, look at me, I look at you, no one is the first to stand up.

Dementors. Even if it is Boggart, it is definitely not something that can be dealt with casually.

There is a certain amount of risk, more dangerous than the dark magic creatures in Professor Lupin's previous practice classes.

Draco glanced around, he felt that he should step up, his Patronus Charm was only a little bit closer, and there was a better fit among the young wizards present?

The first place should be taken by Malfoy.

So Draco cleared his throat and was about to speak, "Ahem. Professor, I"

"I'll do it." Harry was the first to stand up before Draco.

Like Draco, Harry's Patronus Charm was largely formed.

Lupin didn't think about it and chose Harry directly: "Very good, Harry, then you can show everyone an example." ”

For James's child, Lupin is very concerned.

He was very good at dealing with dark magic creatures, and was second only to Dudley in every Defence Against the Dark Arts class.

"Stand there."

Lupin gave Harry a field to leave plenty of space.

"Remember Harry, when you release the Patronus Charm, be sure to concentrate your mind and do your best to remember a happy event."

After repeatedly stressing Harry how to release the Patronus Charm, Lupin stepped aside so that Harry could face the Dementors head-on.

Dudley nodded, and the Dementor floated in, and the moment it came to Harry, the lights around the classroom flickered and went out. The young wizards all held their breath and craned their necks to stare at Harry.

'It's really embarrassing for Mr. Potter, who is a dark wizard, to unleash the 'Patronus Charm', and if it were changed to the three unforgivable spells, Mr. Potter would be absolutely sure. ’

The young wizards of Slytherin thought to themselves.

Harry took a deep breath, the bone-chilling cold coming over him, and the breath he exhaled began to turn into a white mist.

Remember happy things. ’

Harry muttered in his mind, slowly raising his wand.

Slowly closing his eyes, his brain began to run rapidly, and the memories in his brain flashed in front of his eyes like pictures.

It ended up on a few screens, and Harry shouted the Patronus Charm.

"Divine Guard!"

The first picture.

When he and the other trafficked children huddled in a dilapidated hut in despair, the heroic Dudley kicked open the door and came to him.

The second picture.

The renovated cottage was renovated and refurbished with a room that was his own

The third picture.

Eleven year old zoo, sweet chocolate flavored ice cream. And Dudley playing the orangutan. It was his happiest time.

Fourth picture.

The seaside cottage, when I was held by Aunt Petunia and felt the warmth of my mother.

Fifth picture.

Dudley chose to build a castle in Potter's house, and there was a room in the castle.

There are many more similar pictures.

With each image, more silver threads emerge from the tip of the wand, and the countless silver threads condense, making the image of the Patronus more concrete.

The young wizards stared at Harry without even blinking an eye, this was the first time they had seen the Patronus up close.

Harry was completely immersed in the memories.

"Stop, Harry, stop."

There seemed to be a slightly anxious voice ringing in my ears.

Harry fell on deaf ears.

This must be a dementor trick. ’

He knew that Dementors could drain pleasure and make people recall bad things.

So instead of stopping, Harry increased his output

Until someone shook him vigorously a few times and pulled him back from his memory.

"You're going to stop it, Dementors. Ahem, Boggart is about to be killed. ”

It was Lupin, and Professor Lupin looked at Harry helplessly.

He really didn't expect Harry to succeed in one go, and the Patronus was so fierce that he almost blew up the Dementors.

This sparring partner is useless to others

Standing in front of the Dementors was Harry's fully formed Patronus.

A giant silver orangutan

Exactly the same one I saw at London Zoo when I was eleven years old.

The Dementor, who had been standing directly across from Harry, was now being held in the hands of Harry's Patronus, grabbing the rags on the Dementor's body with one hand and lifting it up like a collar, while the other hand was raising his fist, while the Dementor tilted his head to the side with a weak face.

(End of chapter)