With each complete flash of pale blue light, a large amount of cold air was cast.

The cold air met the surrounding air, stirring up a large amount of white mist, which quickly spread to all sides.

Even with the protection of magic, Aven could feel a chill coming over him.

At this moment, in the white mist, it was as if everything was frozen.

Even the air looks like it's about to freeze.

As soon as Evan tried to raise his wand, the biting chill quickly subsided.

Golden-red flames swirled from Dumbledore's wand, dispelling the chill around them.

Dumbledore stood at the forefront, the fire beating in his eyes. His wand was held high like a torch, and flames burst out from the tip of his wand, and these flames did not spread under his control, but formed a ring around Evan and the others in the center.

He stared at the demon altar in the center, at the huge demon statue on it.

It was a strange house-elf, its skin was dark blue, and its face did not have the humble and flattering smile that is characteristic of the familiar house-elf, but instead carried a certain indescribable cruelty, and the corners of its mouth showed a sneer upward.

"Is this the devil?"

"Aven, it's a shame that you're so terrible before. It's a far cry from the demon I imagined, a blue-skinned house-elf. Elaine shuddered as she spoke, and stamped her foot hard, "It's cold!"

"I also said that demons look and take different forms. Evan said.

"To be honest, it looks like it's poisoned. Ron commented objectively.

"What was that chill?" asked Harry.

"It's the magical aura of the Demon Altar. Evan said, also looking at the house-elf demon statue in the center, "It's obvious that the magic of this blue house-elf demon has something to do with frost." ”

"What should we do now?" asked Hermione, "I mean, how do you summon it?"

"Just put the prepared offerings on the stone platform in front of you. Evan pointed to the huge platform in front of the demon statue, which was densely carved with ancient magic scripts, and he turned his head to look at Dumbledore, "Professor?"

"Begin, Aven, it's up to you to do this magic, no problem, right?" Dumbledore said.

"Well, it should be fine. Evan nodded.

During this time, he had studied this demon summoning magic many times, and he was very familiar with it.

Evan stepped forward and took out the house-elf corpse he had gotten from Mundungus not long ago, along with some other spell-casting materials, and placed them on the huge stone platform in front of the statue.

According to the translations of these ancient scripts, these materials are needed to summon demons.

A biting white mist rose from the altar again, and the atmosphere around it gradually became solemn.

Even though the appearance of this house-elf demon was far from the real demon, Harry, Hermione, Ron, and Elaine all watched Evan's movements nervously, holding their breath and staring cautiously and vigilantly, waiting for it to come.

After placing everything on the stone platform, Evan looked back at Dumbledore.

He then placed the end of his wand on the stone.

He began to softly recite the last ancient scripture of the stone platform, a spell to summon demons to descend.

With the sound, the tip of his wand began to glow blue like ripples of water.

Soon, the halos merged with the altar, converging into the gems and magic patterns on it. The temperature around him seemed to get even lower, and Evan saw the corpse of the house-elf that had been placed in front of him slowly float into the air, spinning at an angle.

His magic and the magic on the altar merge into one, and the mana is consumed and the magic is performed......

Above the demon statue, a cloud of smoke was condensing, and it seemed to lead to another world.

Evan looked up, trying his best to see clearly.

In the center of the cloud was a dark, deep darkness, where the endless void, the demonic world.

In the next second, the blue light flashed out, and they appeared from the clouds one after another like lightning, and the light converged on the corpse of the elf floating in mid-air, and the color of its skin was rapidly changing to blue.

Blue-skinned house-elves, Smurfs?!

But it's not just the color of the skin that changes, it's also its demeanor and momentum.

As the magic progresses, the dead house-elf now looks more and more like the demon on the statue.

The spell wasn't very long, and Evan finished it quickly, knowing that his magic had succeeded.

Because after he said the last byte, an unfamiliar voice sounded in his ears.

The pitch of the voice was sharp, and it sounded like a house-elf talking, the demon.

"Who are you, and why did you summon me?" it asked.

At the same time as the voice sounded, the eyes of the house-elf corpse, whose appearance had completely changed, opened.

It stood upright on the stone platform, looking at Evan in front of it.

Evan could clearly see that the eyes in front of him were completely blue, with no eyeballs.

This is the color of magic, this corpse has been given new life by magic, and demons are inhabiting it.

"I summoned you!" Evan paused and continued, "I'm a Hogwarts student......"

"I saw something, a bunch of Hogwarts wizards, interesting, funny. The demon said shriekly, blue bulb-like eyes glaring at Aven, "Hogwarts, hmph, after all this time, I thought this school was long gone. Did you call me out to be my servant, and if you are willing to give your souls, I will consider it. ”

"No, we just want to ask you a few questions. Dumbledore said calmly.

"Ask me a few questions?" it looked at Dumbledore, flinched back, and watched in fear at Dumbledore and the flames that came out of the end of the wand, and quickly returned to normal, "That's asking for my help? I won't help you unless it costs me something to my satisfaction." Also, stop your magic, wizard, I don't like it, you bore me. ”

Dumbledore didn't answer, and he responded with a wand forward.

The flames that had been surrounding Evan and the others were like a huge and warm lasso, and the house-elf demons who were surrounded by the "lasso" panicked and tried to escape the flames that surrounded them......

"You seem to be getting a question wrong, it's not a request. Dumbledore said mildly.