Oh, yes, the Big Four.

Kyle remembered that when he first saw the Big Four in the secret room, the snake-like statues had formed a similar arch.

Including the shape and the ripples like water waves in the arch, they are almost identical.

Wait, he's not going to meet the Big Four again, is he? Can the Department of Mysteries do this? Just as Kyle was thinking about it, he heard Diana's voice again.

"What spell did you use when you killed that Death Eater?"

"Fire Curse." Kyle said subconsciously.

The corner of Diana's mouth twitched visibly.

She took a few deep breaths, took out her wand and pointed it at the stone door, "Now, use the Sharpfire Curse again."

"Here?" Kyle hesitated.

That's Fiendfyre, what if it burns this place down? And this is the Ministry of Magic, is it okay to use dark magic directly?

"Use it if I tell you to," Diana urged.

"All right."

There was no way. Since Diana said so, Kyle could only take out his magic wand, wave it gently, and conjure up a giant dragon made of fire.

Silent Fire Curse? Seeing Kyle's skilled performance, Diana's expression changed slightly again.

It is rare for someone of Kyle's age to learn the Fiery Curse, but he can even cast it using a silent spell.

For a moment, Diana didn't know whether she should be proud.

This is indeed something to be proud of, but the Fierce Fire Curse... seems a little inappropriate.

Then she shook her head and pointed her wand at the stone door.

As if some kind of shackles were unlocked, the white light gradually broke away from the stone gate and, under Diana's guidance, floated to the vicinity of the fire dragon formed by the Fierce Fire Curse.

Kyle's eyes suddenly widened.

The fierce fire in front of him suddenly changed, from an uncontrollable flame to a dancing blue ball of light.

"This is the original form of magic," Diana explained.

It was the first time Kyle had seen such a situation, and he felt curious.

At this moment, he suddenly discovered that there seemed to be something else on the blue light ball, or the color there was a little darker.

Although it is only as thin as a hair, you can still see it if you look closely.

But just when Kyle couldn't help but take two steps forward to see more clearly, another stream of white light surged over, gently surrounding the blue magic power, like a stream of water, washing away the mixed color attached to it.

"Okay." Diana said, waving her wand again, and the surrounding white light retreated back into the stone gate.

At the same time, the magic power turned back into a flawless, crystal blue color.

But before Kyle could take a closer look, a golden-red flame ignited on it.

"All curses come to an end!"

Diana waved her hand and extinguished the fierce fire.

"What is that?" Kyle couldn't help but ask.

"Blood debt." Diana said calmly: "When a wizard ends the life of another wizard, the magic power will change to a certain extent. This is why I know that you have killed Death Eaters."

"There's such a thing?" Kyle frowned, "Why have I never heard of it?"

"Because you won't be taught this in school, and it's not something you should be exposed to. Just like you won't be taught the Unforgivable Curses."

“Is this a soul?”

"No, it has nothing to do with the soul. It's just a change in one's own magic power."

Kyle nodded, not quite understanding.

He seemed to understand what Diana meant a little bit. It was like at school, he liked to eat fried pork chops, so every time he went to the kitchen, the house-elves would fry pork chops for him.

But one day, he suddenly glanced at the bread. Although he only glanced at it, there were always a few elves among the more than a hundred elves who noticed it.

They will think that they like bread, so the next time they go to the kitchen, the elves will bring them bread according to their guess.

"Many wizards pursue this." Diana said softly: "It can make the magic more violent and has a great bonus effect on certain spells.

“For example, the Cruciatus Curse and the Killing Curse…especially the latter. The blood debt can make the Killing Curse extremely powerful.

"But what they don't know is that the heart can affect magic power, and magic power can also affect the heart in turn. When excessively manic magic power is used frequently, one will become more irritable and angry.

"This is also the reason why most dark wizards have strange personalities and become increasingly obsessed with dark magic."

"In that case..." Kyle stroked his chin, "If I can restrain myself from using black magic, then the blood debt won't take effect."

It was still the elf and the kitchen. When there were ninety-eight fried pork chops in front of him, he could have chosen not to choose the two breads.

"Yes, that's true." Diana nodded, "But even if there is no impact, it's still not a good thing."

"That's true." Kyle nodded.

He couldn't help but look at the stone door. It was still the same as before, with no sign of any change at all.

"What's in here?"

"An equally unknown path," Diana said, "but we can't enter it. It repels all conscious things, including ghosts and portraits."

Kyle took two steps towards the stone door out of curiosity, and when he saw that Diana did not stop him, he felt relieved and boldly reached out to the stone door.

Then his hand came out from the other side.

"Fantastic," Kyle murmured. "Is this what the Department of Mysteries does?"

"It's just one of the jobs." Diana pointed her wand at the stone door and lifted it slightly. Ripples quickly appeared inside, and colorful halos flowed. Kyle saw blue, red, orange... it was beautiful.

But soon, Shimen returned to peace again.

"There are three such stone doors in the Department of Mysteries, representing life, magic, and time respectively."

Diana continued, “And what you are seeing now is what magic looked like in its original form.

"Remember what Ollivander said? The wand chooses the wizard. In fact, the wand chooses the magic power, but everyone's magic power is different."

It was difficult for Kyle to describe his current mood. This was his first time to come into close contact with the Department of Mysteries. How should I put it? It was indeed very mysterious.

"Okay, it's about time."

Just when Kyle was stunned, Diana suddenly said, "We should go back."

Kyle nodded and followed Diana off the stone platform.

They passed through the foggy room again, and the room with the huge water tank.

"Is there no one guarding this place?" Kyle couldn't help but ask, "We don't seem to have met anyone."

"No need to watch over him," Diana said. "Under normal circumstances, even if Voldemort broke in, he would only wander around the front hall and would never get here."

"What if someone really got here?" Kyle thought for a moment, "I mean, someone who ran in by accident."

"That only proves that he should have come here." Diana said calmly: "Of course we don't need to stop him."

The two of them once again passed through a maze-like series of doors and arrived at the corridor outside the Department of Mysteries.

At this time, Chris was standing by the elevator not far away waiting for them.

(End of this chapter)