The Dementors' Overtime Pay (Third Update!)

As night fell, Hogwarts Castle was brightly lit.

The two young people leaned on each other, sitting quietly atop the castle tower, gazing into the distance at the brilliant starry autumn night sky.

Hermione rested her head on William's shoulder, swung her legs, and softly sang a Scotland folk song in a clear, melodious voice.

Inside the castle beneath them, someone was also singing. The banquet was already halfway through, filled with laughter and joy.

After an unknown amount of time, William unfolded a Hogwarts Map, which was densely covered with countless lines and names.

Finally, Black's name appeared.

He emerged from the statue of the hunchbacked witch through the Honeydukes's secret passage, and like a ghost, silently ran along the road toward Gryffindor House.

According to the map, Black stood at the gates of Gryffindor House for a long time without being able to enter, until suddenly the gates opened.

He slipped into the Gryffindor Common Room.

Currently, there are only two possibilities: either the Fat Lady opened the door herself, or someone opened the door for Black.

But upon closer inspection of the map, the Gryffindor Common Room was empty, with only Black's name listed.

It seems only the Fat Lady could have opened the door!

Black went into the lounge, but not into the dormitory.

Peeves ' traps and Professor McGonagall's armored guards blocked his way.

"Should we go and catch him?" Hermione asked.

"No, our goal is to stop the Dementor from entering the castle," William said.

Dumbledore made it clear that their mission was to stop a large number of Dementor from flooding into the castle.

Unlike other places, Hogwarts Castle has countless rooms.

Once the Dementor invade, search Black; they can easily get trapped in certain rooms.

If someone deliberately hides inside, they might be attacked if they encounter a lone wizard.

It could easily lead to countless deaths.

The sheer number of Dementor is a bigger problem than Black.

The title "principal" actually carries another, more subtle meaning.

Black sneaked into the school through a secret passage, which shouldn't have alerted the Dementor at all, yet they did notice, which in itself is suspicious.

It can only be concluded that someone discovered Black and deliberately lured the Dementor in, intending to... kill him!

All the teachers and students were in the Great Hall, Ron, the only one who was out, was in Snape's office... So, who did it?

After thinking for a long time, William could only think of the... mole Tom had left at school!

But then another question arises: why would Tom's mole risk exposing himself by luring Black Dementors to kill Dementor, a known Death Eaters?

From a certain perspective, they should be considered "friendly forces".

While it's true that sabotaging allies is a traditional skill of the Great British Empire, there's a time and place for betraying teammates.

William is now more interested in the mole than in Black, whom the headmaster used to "test" Harry.

He even considered turning Tom against his own side, turning him into a spy within a spy operation!

Sure enough, something unusual happened soon after.

The two Dementor guards at the entrance, who had been quietly standing watch, suddenly smelled a peculiar odor.

Dementor have no eyes, but with their "cherry lips," they are invincible. They can even "see through" Disillusionment Charm and Invisibility Cloak.

William was certain that the mole was at work, deliberately luring the Dementor into the castle.

The method is very simple; you just need to go through the gate.

At this time, no young wizards are out, so any wizards entering the castle, Dementor, will mistake it for Black... has arrived.

Strangely, William couldn't find anyone's name at the school gate by looking at the Hogwarts Map.

The Hogwarts Magical Map, derived from the Marauder's Map, is based on the obscure "Tracking Charm" used by the Marauders within the school.

Very few people know this spell, which is why, despite selling so many maps, no young wizard has ever been able to decipher it.

However, if one casts a spell on their own name, they can conceal their location and become unmarkable.

This is very complex and profound magic; it is said that Voldemort cast a spell on his own name.

Therefore, for a long time, people have used "You-Know-Who" as a substitute, not only because of fear, but also for this reason.

Another way is to know the Tracking Charm, which can hide your location and prevent you from appearing on the Marauder's Map.

Therefore, it cannot be displayed on the Hogwarts Map.

The maps sold in Akali's Mystery Shop all follow this pattern. They only show the buyer's location and cannot tag other people.

Clearly, the mole either cast a spell on his own name or knew a "Tracking Charm."

William transformed into a sea eagle, Hermione rode on it with practiced ease.

With his wings spread, a gentle breeze swept by, and he soared into the air, carrying Hermione across the campus.

Finally, it landed on a stone pillar next to the school's cast-iron gate.

The two, under the influence of the Disillusionment Charm, gazed intently down below.

The Dementor had already entered the school grounds and were slowly gliding forward.

The mole should be nearby, but William can't see him.

The person was very cautious; not only did they hide their name, but they also used Disillusionment Charm or Invisibility Cloak.

William waved his wand and whispered, "Invisibility Cloak, Accio!"

But the Summoning Charm had no effect.

It seems the opponent wasn't wearing Invisibility Cloak, but rather a master of the Disillusionment Charm, so much so that even William couldn't detect them.

He's a cautious mole!

The Dementor could no longer contain themselves; the two of them suddenly flew into the sky, their black robes billowing lightly.

They emitted a screeching sound, like a faulty wireless telegraph connection.

Soon, the Dementor stationed at the various entrances, as well as Dementor in the Forbidden Forest and the distant Hogsmeade, were all drawn to the scene.

A swarm of black-robed figures rushed straight towards the castle, numbering no less than three hundred.

There are too many Dementor; they seem to be frantically growing and secretly creating humans.

"What should we do?" Hermione asked.

William continued to gaze at the castle. He had confirmed many things, but he still hadn't discovered... who the mole was.

After a long pause, he took a breath and said, "With so many Dementor, we can only lure them together and deal with them later."

"How do we lure them here? Do we still need happy memories?" Hermione asked.

"Food is one way, but there's another way to lure monsters, called... drawing hatred!" William chuckled.

"Hermione, do you think if we release the Dementor we've captured, will the other Dementor hear its cries for help and come to its rescue?"

Hermione paused, then said seriously, "Definitely."

Where are you planning to put the Dementor?

"Our favorite place!"

The Seventh Floor of Hogwarts Castle

A smooth door was opened.

Countless Dementor slid inside, following the cries for help.

"There's only one last thing left." A moment later, William appeared in the doorway, waving his wand.

"Expecto Patronum!"

A silver eagle flew through the door and headed downstairs. It was going to the Great Hall to give Dumbledore a warning.

William certainly didn't manage to lure all the Dementor over; the rest will be the professors' responsibility.

William and Hermione closed the door, and from the outside, the door completely disappeared, turning into a wall.

"Closing the door and beating the dog... Done!"

The Dementor slid toward where their companions had called for help; one Dementor seemed to have caught a whiff of something delicious.

Being a clever little thing, it secretly broke away from the main group and flew off to the other side.

It turned left and right, passed a Troll specimen, flew a short distance, and finally stopped in front of a large cabinet with a bubbly surface, as if it had been splashed with strong acid.

Beside the cabinet was a tattered half-body statue of an ugly old wizard, and to one side was a rusty... Diadem.

It sniffed hard and detected the scent of a soul. It opened its "cherry-like mouth," preparing to... during its mission.

I'll secretly treat myself to a chicken leg!

Consider it overtime pay.

This... isn't too much to ask, is it?!

(Third update, please vote for me, everyone!)