"Professor Lupin?"

A familiar face appeared before their eyes.

"Why are you here?" said Hermione, surprised.

"You can't be a vagrant, can you? My new job is an Auror, and I should have told you a long time ago, but I asked for secrecy. Lupin paused.

His mission these days is to be on duty at the Ministry of Magic, and as an Auror, he is not out to capture dark wizards all day.

"Also... Long time no see. Lupin smiled and waved at them.

"Now is not the time to catch up, Professor Lupin, I have something important to ask Dumbledore......" Harry said with an anxious look on his face.

"Oh, and, Professor McGonagall?" Lupin's attention shifted again, his gaze moving behind the group, and he stood up from his seat and nodded.

"Professor McGonagall?"

The group twisted their heads a little stiffly, and then they saw the old lady's serious expression, and there seemed to be a few people behind her.

"It's over. The Weasley brothers' eyes met for a moment, and their bodies leaned back slightly, then they shrugged their shoulders and rolled their eyes in tacit.

But instead of immediately reprimanding them, Professor McGonagall asked instead.

"Remus, I ask you, where is Dumbledore?" Professor McGonagall now pointed straight to Lupin.

"He's dueling with Grindelwald, maybe it's already started! Harry said loudly, answering first.

"Well, I don't know why it became known to everyone. I don't think many people know about it, but it's top-secret information. He shook his head.

"Yes, at the lowest level of the Ministry of Magic, the Department of Mysteries, it should be a while now. Lupin then acknowledged the reality.

Professor McGonagall's face changed slightly, and her lips pursed.

Now that the authenticity of the duel has been confirmed, Harry's claim has a little more truth.

Her stern gaze was even a little wary of Snape.

"Not only Grindelwald, but also ......," Harry said anxiously, but Hermione kicked him in the calf, and Harry saw that Snape was there, and his bottomless black eyes were staring at him.

It's like a poisonous snake that chooses people to eat.

"Go, keep up. Professor McGonagall snapped her black robe back, and walked briskly towards the golden gate.

Several other professors and students certainly followed.

"Why she's here. Ron whispered to Harry,

Trelawney clearly didn't have much fighting power in their eyes.

"I don't think there's a need to worry about it. Lupin followed them over and said. "Grindelwald has been locked up for so many years, and he certainly won't be able to regain much strength. ”

"Dumbledore had beaten him decades ago. ”

Lupin seemed confident in Dumbledore, and followed them in his tracks.

Soon they were in front of the elevator.

Professor McGonagall stretched out her somewhat rough fingers and pressed one of the nearest "down" buttons.

The elevator clicked in front of them almost immediately, and the golden fence slid through it to either side with a deafening, reverberating clang, and they rushed in, then pressed the number nine button.

The Department of Mysteries is located at the lowest level of the Ministry of Magic, where it is said to be made of the strongest and most resistant materials to magic.

Then as the elevator descended, some noisy sounds got louder and louder, and kept burrowing into their ears.

Professor McGonagall's face grew darker.

Trelawney stood in the corner of the elevator in fear, looking around in a panic.

With a "bang", the elevator shook violently, and then quickly returned to normal.

The illuminated nine-layer button went off. Here they are.

Then the group quickly strode out.

Stepped into this dark corridor.

Not far away, the dark marble door was closed, and two dark blue torches hung from the top, illuminating them.

There are also several medieval-style paintings hanging on the nearby walls.

They walked quickly down the hallway, the air currents that they brought with them flickered and flickered in the light of the flames.

It's just that the distance that should be close at hand seems to stretch infinitely, and there is no end in sight.

They walked for a while before they realized something was wrong.

"They're afraid they've set up a spell to prevent the duel from being interfered with. Professor McGonagall said decisively, and exchanged glances with Flitwick.

Flitwick raised his wand and sang loudly.

After a fluctuating and distortion that they could feel, they noticed the change in the corridor in front of them, and the corridor in front of them began to shake, revealing a new alleyway.

It dawned on everyone that they had been going around in circles just now.

After disenchanting them, they finally came to this simple stone door.

"Alajo Cave opens. Professor McGonagall raised her wand and pushed the door open.

At that moment, a scorching wave of air gushed out from it, along with the sound of ping-pong and dazzling mixed light.

And so on.

They rushed in.

But this group of people did not see the protagonist of this duel for the first time.

What appeared before them was a huge circular room, littered with bricks and stones

The Hall of Brains, the Hall of Death, the Hall of Time, the Hall of Prophecy, the Office, the Planetary Room, the rooms that should have been separated by walls have now been completely destroyed, and they are no longer separated from each other.

The ground was littered with tattered things.

Countless wooden shelves and crystal ball fragments lay on the ground, the latter refracting a cold glow in the flickering light.

This is supposed to come from the Hall of Prophecy.

A few dirty tables and chairs lay crookedly on the ground.

This may be an office object.

A large grandfather clock is flipped to the side, surrounded by dense mini clocks, hanging horizontally and vertically.

Maybe from the Hall of Time.

In short, the lowest level of the underground now presents an unacceptable sense of chaos.

Only now, when they came to their senses, they saw two figures.

The two men also sensed someone pushing the door open and looked back.

Look at it.

Both are tall and tall.

One of them was bald, with skin that was so tanned that it was certainly not tanned, and a pair of gold earrings on his ears.

The other one, with thin shoulders, is handsome, and has a burning eye.

They are Kingsley Shacklele and Sirius Black.

Witnesses to this duel.

"Harry, hurry back!" Sirius stood behind a large boulder, looking at Harry in astonishment, and then his face was very worried.

"This duel is almost completely secret, why are you here?" Sirius then asked.

Harry's face froze, and he was about to explain, only to find that as soon as he opened his mouth, a frantic flow of air poured into his mouth, making him almost speechless.

The light and shadow in everyone's eyes flickered, which dazzled them, Luna subconsciously closed her eyes, and the remaining students also raised their arms to block their eyes.

They all subconsciously wanted to intervene to help, but found that they couldn't tell the difference between friend and foe.

And he doesn't have the ability to intervene in a duel at this level.

Now all that is in front of us is a duel between magic and magic.

.