Is there anyone else here?

Sirius looked around and saw no figure, but it wasn't Peter himself!

Just as Sirius hesitated, the wind outside the window was loud, and the biting cold gradually invaded from all directions...

"Why is it so cold all of a sudden?" Ron shuddered and complained, and Sirius's face changed dramatically.

"Oh no, those Dementors are coming, you guys get out of here!" Sirius looked at Harry and the others and hurriedly urged.

"But... What do you do? Harry hesitated.

"Leave me alone, I've been in Azkaban for over a decade, and I'm familiar with them—" Sirius pretended to be relaxed and waved them to leave.

Harry was about to say something, but Hermione pulled him by the arm and ran away, and Ron picked up the invisibility cloak that had fallen on the ground and draped it over everyone.

It's just that they're a little late, and after a little delay, a group of hungry Dementors have floated up from the doorway...

They couldn't wait to enjoy their meal, but their keen senses could easily detect the strangeness inside the rooftop, and in the gray world, all kinds of emotions were emanating from the three places.

And in their memory, there should only be two prisoners locked up in the rooftop!

Harry and the others in the invisibility cloak held their breath nervously and cautiously moved towards the door, but unfortunately the Dementors had already surrounded them.

The fear he had felt for a long time came back to his heart, and Harry seemed to hear Voldemort's laughter again, and the painful wails of a witch before he died, gritting his teeth, cold sweat on his head but not passing out as before.

A Dementor quickly floated in front of them, panic spreading in the hearts of the three of them, and Harry desperately recalled in his mind the scenes of learning the Patronus Charm, remembering what Ivan had said...

The secret of the Patronus Charm is to condense positive emotions with magic and transform them into power!

Dementors have nothing to fear, they are also intelligent creatures, and they are also afraid of forces greater than themselves...

......

Despite the dementor's ugly face getting closer, Harry's mind calmed down, and he tried to find the feeling of releasing the Patronus Charm, raising his wand high and roaring loudly.

"Divine Guard!"

Dots of light flashed at the tip of the wand, and a white mist of light erupted, and a large silver creature burst out, sending the approaching Dementors straight out with their pointed horns.

"Patronus... I did it! Harry was pleasantly surprised to see the white light that drove the Dementors in mid-air, it looked like a majestic stag.

"Oh my God, Harry! You've defeated them! Ron said incredulously, if he'd remember correctly, Harry had fallen from the sky a week earlier because of a Dementor.

"It's... Patronus Charm? When did you learn this? Hermione was also a little surprised, and looked at Harry suspiciously.

"Just after the Quidditch match, I went to Ivan to learn it...", Harry casually explained as he commanded the Stag Patronus to repel a Dementor who tried to lean in.

Hermione pursed her lips a little in disgust, because she had encountered the Dementors, she had also asked Ivan for the Patronus Charm, but at that time, Ivan had put it on hold for the time being because she had been too busy recently, so she had to read books to study by herself...

The little witch snorted, took out her wand, and muttered a spell, and a hazy white mist suddenly drifted out, blocking the Dementors in the other direction.

At this time, it was not only Harry and the others who were attacked by the Dementors, but some lazy monsters did not gather around, but chose two other targets that were better to deal with.

"Fuck off... Get out of the way, don't come near me... When the Dark Lord returns, he'll kill you all!" ”

Peter seemed to have lost his mind under the blows, shouting crazy words in his mouth, or the large number of Dementors reminded him of his days under Voldemort thirteen years ago.

Sirius, surrounded by a few Dementors, would not have had a good time, frowning tightly, with a pained look on his face from time to time.

And more Dementors are squeezing in through the ventilated windows...

Harry heard Peter's cry and noticed the situation, and hurriedly swept across with his wand, and the silver-white stag was like a white lightning bolt, knocking all the Dementors near Sirius away.

Sirius came to his senses, staring blankly at the white shadow, muttering something to himself, his dark eyes turning to look at Harry as if he were looking at another person.

After Harry helped Sirius out of danger, he hesitated for a moment and asked his Patronus to help dispel the Dementors near Peter.

"What are you helping him do? What if he had been killed by the Dementors..."Ron asked, puzzled.

"These Dementors have gone mad, what if they kill Peter?" Harry explained.

As Harry had said, the Dementors, who had been unregulated, rioted and became more and more aggressive.

Harry and the others felt like they were in trouble, and they didn't know what to do now...

Sirius came to his senses at this time, and told them to stop caring about themselves and rush out directly in the invisibility cloak.

Harry hesitated, fearing that the Dementors would take their anger out on Sirius when he left.

"The Dementors don't have the guts to do anything to me, but if you don't leave, the Auror from below will come up! Come on! Sirius shouted again.

Harry nodded, gritted his teeth and summoned the Stag Patronus back, leading the way and rushing out of the observatory with Ron and Hermione.

Dozens of Dementors gathered from all directions, and Harry was exhausted from maintaining the presence of the Patronus.

Fortunately, Hermione also has a Patronus Charm, and although she can't summon her own Patronus yet, she can take some of the pressure off him and keep Harry going.

"Whew... God.... Calling the gods to protect you! That's right, right? When Ron saw that his two friends were so powerful, he also thought of doing his part and casting spells in the same way as the two of them.

But such a high-level spell is not something that can be mastered in a while, and no matter how hard Ron tries, the wand has no reaction.

The Dementors floating around him from nowhere slapped Ron's wand to the ground and rolled to the side.

"Nope! My wand! Ron yelled and tried to run back to pick it up, but to his devastation, a Dementor who happened to be passing by picked up his wand.