Outside Hogwarts Castle, Dumbledore used magic to repair broken magical barriers, while looking for the intruder with a gloomy face.

But those black evil mist had some kind of special interference ability, so he couldn't see through the real situation inside, and he couldn't determine how many people there were.

But the only thing that is certain is that it must be the Death Eaters doing it, and worse, Voldemort may be coming.

Because Dumbledore could clearly feel the sensation given to him by these black mist, very similar to the octopus monster before.

Suddenly, a dozen black mist flew out of the black fog and rushed towards Hogwarts Castle. Seeing this, Dumbledore's gloomy face turned cold, "Is it finally time to do it?" ”

"Haha! Dumbledore didn't expect that today would be your death! ”

Several black mist surrounded Dumbledore, revealing faces with black and gold masks, laughing wildly.

"You're looking for death!"

Seeing these Death Eaters so arrogant, Dumbledore was furious, he stopped his magic to repair the magic barrier, and quickly waved the Elder Wand in his hand to shoot a series of spells at the Death Eaters.

Now that the Death Eaters are in, there's no use tinkering with the enchantment. The only way to do this is to expel the Death Eaters from Hogwarts and then repair the magical barriers.

"Dumbledore, the master has given us new strength. It's so powerful that you can't defeat us. ”

In the face of Dumbledore's attack, the Death Eaters did not choose to escape or counteract with the spell, but continued to hover around Dumbledore, and when the spell was about to hit their bodies, a cloud of black mud appeared in front of the Death Eaters, absorbing Dumbledore's spell.

"Is it this filthy creature again?"

Ignoring the Death Eaters' provocations, Dumbledore saw that his spell could not harm them, so he raised his Elder Wand above his head and launched a spell against the black mud.

"Filth retreats!"

A blinding white light burst out from the Elder Wand, illuminating all of Hogwarts in an instant, and as the glow of the spell shone on the Death Eaters, the black mud began to melt rapidly.

"Damn it!"

"Dumbledore, do you think that's going to stop us?"

"Let's withdraw!"

Saying the most arrogant things and doing the most cowardly things.

When the Death Eaters saw that the black mud on their bodies had been dispelled by Dumbledore's spell, they fled back into the black mist in the sky.

After repelling the Death Eaters, the seriousness on Dumbledore's face did not fade. He looked up at the growing black mist, knowing that the Death Eaters would be back.

The ominous aura in the black mist grew thicker and thicker, and Dumbledore could clearly feel that the mist possessed the same powerful energy as the octopus monster.

Just as Dumbledore had expected, before he could catch his breath, the Death Eaters who had just escaped flew out of the black mist again and flew towards him.

And the aura on their bodies made Dumbledore feel very bad, because the aura of black mud reappeared on their bodies.

"Headmaster Dumbledore, here we are! We're going to defend Hogwarts with you! ”

As Dumbledore pondered how to deal with the black mist above his head, hundreds of house-elves rushed out of Hogwarts Castle under the leadership of Rocky. When they saw the Death Eaters hovering over the castle, they immediately attacked the dastardly invaders with the magic of their house-elves' unique system.

The appearance of the house-elves did not soothe Dumbledore's expression, but gave him a bad premonition, but he was still slow.

The black mist above the sky, after sensing these house-elves, quickly shrank in size and condensed into a dark cloud.

A little bit of pearl big black raindrops, hurriedly sprinkled downward.

"Go back!" Dumbledore secretly said that something was wrong, and hurriedly shouted at the house-elves below.

But these house-elves are hell-bent on fighting off the Death Eaters and defending their homeland.

When the black raindrops dripped on their bodies, the mutation protruded, and a cloud of black mud attached to them, and after a few breaths, most of the house-elves turned into monsters controlled by the black mud, and rushed towards other normal house-elves.

All of a sudden, the entire Hogwarts castle was in shambles. Only then did the normal house-elves realize that their compatriots had become monsters because of these strange black raindrops, and they could only reluctantly retreat into the castle. Use the castle gate as a level to defend against the invasion of black mud monsters.

"Haha, what a bunch of idiots!"

"Dumbledore, I didn't expect that your house-elves had betrayed you!"

The Death Eaters, bathed in the black rain, laughed as they looked at the black mud monsters below.

"Dispel the filth!"

Dumbledore ignored the Death Eaters' taunts as he swung his wand again to cast the spell, only this time he was aimed at the house-elves below.

With a flash of white light, the black mud on the house-elves began to melt rapidly, but when the spell effect disappeared, the black mud reattached to the house-elves.

It's black rain!

Dumbledore said secretly, his spell just now dispelled the black mud on the house elf's body, and at the same time dispersed some of the black raindrops in the sky, but the black rain never stopped.

When his spell ended, the house-elves who had escaped the control of the black mud were drenched in the black rain again, and the new black mud took control of them again.

However, Dumbledore's spell was not completely ineffective, and the dozen or so house-elves closest to the castle gate did not get caught in the black rain again because of the eaves, and they fled into the castle, and together with their companions who had not been exposed to the rain before, they fended off the black mud monster behind them.

"Dumbledore, are you here to visit?!"

"Arvada gnaws on big melons!"

"Divided!"

“......”

When the Death Eaters saw that Dumbledore wanted to cast a spell on the dark clouds, they quickly pulled out their wands and cast an evil spell on Dumbledore.

Attacked by more than a dozen Death Eaters at the same time, Dumbledore could only give up the idea of dispelling the black clouds, and his body quickly flickered in the air, using the illusion to dodge these spells.

......

"Huh... Harry, what are we going to do? ”

In the direct passage from the castle to the school hospital, Ron and Harry hid under the invisibility cloaks, watching the monsters attacking the castle gate not far away, and the two were so frightened that they crouched under the stone pillars, not daring to make any sound.

But when the black rain became heavier and heavier, and the ground that had been dyed white by the university was flooded by black water, and from time to time these black waters would spew out a black ball the size of a human head, and when the ball was bounced to the highest position, a scarlet eye emerged, observing everything around it.

Both Harry and Ron were so frightened by these strange monsters that they couldn't move. But Harry had seen similar monsters in the Forbidden Forest before, and he didn't have the same dreaded urinary incontinence as Ron.

"Do you know where else we can get back to the castle?" Harry asked softly.

"I don't know... I don't know, Harry, if we're going to die! "Ron was about to cry, these monsters were so scary, even more terrifying than the ghouls in his attic crawling into his bed in the middle of the night.

"Calm down, Ron! We have the Cloak of Invisibility and they can't detect us! ”

"But... I don't want to be a monster! ”

After witnessing those house-elves contaminated with black rain and instantly turning into monsters, Ron was really afraid that he would become monsters.

He regretted it now, regretted why he proposed to walk out of the castle in an invisibility cloak...

"George and Fred, didn't you tell you about the secret passage to Hogwarts Castle?"

Harry covered Ron's mouth, he was afraid that Ron's voice would be heard by these monsters.

"......" Ron shook his head and then nodded quickly.

"Where?" Seeing this, Harry hurriedly took his hand away.

"The school hospital..."

"Then we'll have to hurry!"

Harry glanced at the black water around them, and it was good news that it hadn't flooded the aisle they were in.

But if they stay here, the black water will definitely flood the aisles, and then they will become monsters.

Time was of the essence, and they had to immediately follow the hallway to the school hospital and escape back to Hogwarts Castle through the secret passage that Ron knew.

......

"Shadowless!"

After slicing the body of a Death Eater who had broken into the castle in two, Professor Snape looked at the wriggling black mud on the corpse, and his majestic face instantly darkened.

The black mud couldn't resist his shadowlessness, but his spell couldn't damage the black mud either.

The Death Eater died, but the black mud clinged to the corpse, like a puppet, controlling two corpses to crawl towards him.

"Dispel the filth!"

Professor Snape snorted coldly, and used the magic Dumbledore had taught him to dispel the black mud from the corpse.

Completely eliminating an intruder didn't make Snape look any better, as more Death Eaters broke into the castle.

Although Headmaster Dumbledore fended off the ten Death Eaters outside the castle, many more Death Eaters stormed into the castle through different entrances while Dumbledore was besieged by his companions.

"Severus, are you going to betray your master?"

Before Snape could make any progress, another Death Eater appeared before him. The Death Eater seemed to know Snape, and when he saw him cast a spell on himself, he dodged and yelled.

"I didn't receive any orders from my master." Snape said ruthlessly.

"However, we act according to the will of our master, and you should help us!"

"My mission is to lurk at Hogwarts. I can't expose myself without the owner speaking up personally. ”

With that, Snape once again unleashed his blade and attacked the Death Eater he knew. As Voldemort's spy for Dumbledore's side, few Death Eaters were aware of his existence.

Now that the Death Eater in front of him recognized him, there was no way Snape would let him go.

Spies, it's ridiculous!

Since the night Lily was killed by Voldemort, Snape has only been one - the Potions professor at Hogwarts School of Witchcraft and Wizardry!

"Damn it!"

The Death Eater yelled, and then raised his wand to Snape to cast the spell.

However, he overestimated his own strength and the defensive ability of Black Mud.

......

At this time, Hogwarts Castle was in chaos, the corridors were full of Death Eaters, and the house-elves had to dedicate some of their men to protect the students in the Great Hall.

But their strength is too weak, and it is difficult to fight against the black mud monsters, and they are no match for the Death Eaters at all.

Fortunately, the enchantment in Hogwarts Castle does not restrict the apparition of house-elves. This gave them a chance to sneak up on the Death Eaters from behind.

While their magic is also absorbed by the Black Mud, it at least slows down the Death Eaters.

"Arthur, it's all Death Eaters out there, aren't you worried about your safety at all?"

Lilith, who had been following Arthur invisibly, saw Arthur sitting alone in the classroom, writing something seriously, and finally couldn't help but show up and ask.

Let's try it soon, everyone. 】

"I can't count on you, can't I summon a few helpers? By the way, you owe me another 5,000 gold Galleons. ”

Arthur finished writing the last word, then looked up at Lilith with a blank expression.

"When did I owe you another 5,000 gold Galleons? Wrong! I never owe you money! ”

Lilith, who couldn't get the answer she wanted, said slightly angrily.

"It's okay, I know you're also a worker. I'll ask Grindelwald for this amount of money you owe in person. ”

Because Lilith didn't help Hogwarts fight off the Death Eaters, Hogwarts lost a powerful force.

There was no way, Arthur had to use his writing ability to summon the professors who had returned home one by one.

The reason is a bit far-fetched, such as forgetting something, or worrying that the plants in your greenhouse will freeze to death, etc.

The free writing ability once a day ran out, and Arthur spent 5,000 gold Galleons to activate the writing ability three more times. Call back the three deans who are not at the school.

As for the other professors, they are either too old to retire soon, or they are not strong enough, and letting them come back is purely adding to the chaos.

"You!"

When she heard Arthur threaten herself with Master Grindelwald, Lilith's eyes lit up. But Arthur is her own protection target, the person Lord Grindelwald values the most, even if she has the heart to kill Arthur, she can only chew it and swallow it in her stomach.

"Alright, I'm going out and deal with these Death Eaters. Are you still going to follow me? ”

Putting the journal in the inner pocket of his wizard's robe, Arthur stood up and asked Lilith.

"What do you think?" Lilith rolled her eyes and said angrily.

Arthur was going to fight the Death Eaters, and that was an extremely dangerous thing to do. She came to Hogwarts to protect Arthur, how could she have allowed the Death Eaters to hurt Arthur.

"Then you are free!"

Arthur didn't think about the deeper meaning of Lilith's words, took out his wand, and walked out of the classroom.

But when he walked out of the classroom, he bumped into a Death Eater head-on, and both sides spotted each other at first, but it was so sudden that they both fell into consternation.

"Filth retreats!"

"Broken bones!"

However, in the end, it was Arthur who reacted first and cooperated with Lilith behind him to kill the Death Eater.

"Just like you, any Death Eater can kill you."

"I was just drawn to the black mud on him."

Arthur frowned at Lilith's taunt.

This Death Eater actually had black mud possessed by Quirrell at a glance, but what about the other Death Eaters? This black mud is not an existence that can be easily solved.