**Harry Potter World.**
Almost three months had passed since the Triwizard Tournament incident.
At first, Minister of Magic Cornelius Fudge refused to believe Voldemort had returned, and he heavily promoted the idea that Hogwarts had fabricated a prophecy to cheat, swearing to find evidence to punish Dumbledore.
Initially, this approach worked, putting many wizards at ease.
But just a few days ago, the Dark Lord attacked an ancient magical site in Norway, killing over thirty Aurors.
The entire European wizarding world was in panic, once again overshadowed by Voldemort's presence.
Hogwarts' Defense Against the Dark Arts professor, Sirius Black, was reinstated to his position.
Because Wormtail was seen by many, he was cleared of all charges.
Moreover, no one wanted to take the Defense Against the Dark Arts teaching position.
Everyone knew Voldemort held the most resentment towards Hogwarts, making it a high-risk job.
Otherwise, Sirius wouldn't have been easily declared innocent.
---
**September 27th.**
Weather: Overcast.
In Hogwarts, on the third floor, inside the Defense Against the Dark Arts classroom, Sirius Black was teaching.
Seated before him were fifth-year students from Gryffindor and Ravenclaw.
Due to the Dementors becoming Voldemort's allies, he had to continue teaching the Patronus Charm.
Today was the second day, having taught Hufflepuff and Slytherin yesterday.
"Expecto Patronum!"
With a soft incantation, silvery steam-like energy spurted from his wand, forming a snake in the air.
Sirius's voice followed:
"Remember, students, when casting the Patronus Charm, focus on your happiest memory."
"Concentration and spontaneity."
After demonstrating, he had Harry perform it once.
Harry had learned it from Lupin when he was a professor.
Many students watched with envy, as the Patronus Charm was rarely mastered, even by adult wizards.
Luna stood in an inconspicuous corner, quietly speaking to her lion-head sling bag:
"Such a beautiful Patronus, I wonder if I can succeed."
Given her usual peculiar behavior, no one paid attention.
At that moment, only she could hear a soft voice:
"Of course you can. You've always been happy, haven't you?"
Luna scratched her head, looking troubled:
"But there are so many happy memories; I don't know which is the happiest."
"Sometimes, seeing others get teased or teasing me is fun too."
Inside the sling bag.
Loki, who had been hiding in the shadow of the book "Secrets Beyond the World," couldn't help but smile.
He had been pretending to be the spirit of the book, with only special individuals able to hear him, and Luna thought it was normal without any suspicion.
Loki spoke with a smile:
"I noticed you've been quite happy reading this book lately."
"I can almost feel your heart flying to another dimension with the mythological stories."
Luna nodded in agreement.
The myths recorded in the book were indeed fascinating.
Especially the heaven of the gods, a vast, magnificent, and fantastical world, filled with unknown and interesting creatures and landscapes.
Freedom, sunshine, happiness!
In comparison, the wizarding world felt small and dark.
Soon, it was Luna's turn to cast the Patronus Charm.
She was still troubled about which memory was the happiest. Her wand only emitted a small silver spark before dispersing.
Each student had three minutes.
After some comforting words, Sirius allowed Luna to try again.
This time, Luna decided to use the process of elimination. The other students watched as she swung her wand like a conductor's baton, looking slightly mad.
"Expecto Patronum."
"Expecto Patronum."
"Expecto Patronum."
"...."
Ron was stunned, then whispered to Harry:
"Is she a genius?"
Ron had noticed what Luna was doing and regretted not trying it himself.
Harry also saw the key but shook his head:
"It's not that simple. The Patronus Charm isn't just about recalling happiness; it's about feeling that emotion again."
"Switching quickly, you can't feel it."
Hermione nodded in agreement.
If the Patronus Charm were that easy, more wizards would master it, and Dementors would become magical creatures for protection.
Also...
Was this girl so happy?
Did someone truly have so many joyous memories?
Three minutes quickly passed, and Luna regretfully stepped down.
Sirius comforted her, saying she shouldn't be discouraged; her wand movements and the incantation were already perfect.
Hearing this, Luna brightened up again.
She had filtered most of her happy memories, so maybe she'd succeed next time.
Soon, class ended.
With no afternoon classes, Luna mysteriously went to the Room of Requirement on the eighth floor after lunch.
At that moment, Harry, Ron, Hermione, Cho, Neville, Ginny, and others were already inside practicing spells.
Originally a secret group against Umbridge, they didn't disband after she left, renaming themselves Dumbledore's Army.
Seeing Luna, they greeted her and resumed practice.
Luna began happily swinging her wand like a conductor again.
Harry, seeing this, sighed:
"Luna, that won't work."
"Happy memories are just a trigger; you need to extract the emotion."
"So not only must you find the right one, but you also need to feel that happiness again."
Luna nodded, indicating she understood, but continued swinging her wand.
Ron muttered:
"I thought all Ravenclaws were smart."
He wasn't mocking, just blunt.
In the sling bag, Loki internally scoffed.
How could fools understand geniuses? Every time Luna recalled happiness, she felt it, meaning her method was right.
Harry glared at Ron, about to explain that his friend didn't mean it that way.
But before he could, he suddenly screamed and collapsed, writhing in pain!
Flashing fragments filled his mind.
After several seconds, drenched in cold sweat, Harry opened his eyes.
They were filled with horror.
Hermione's heart sank, sensing trouble:
"What's wrong, Harry? What did you see?"
She knew he occasionally saw through Voldemort's eyes!
And Harry's expression indicated something big had happened!
Harry slowly looked up, trembling, and said:
"I... I saw Sirius being tortured by Voldemort in a place filled with prophecy orbs."
Ron immediately screamed:
"Impossible!"
"Professor Black was just teaching us the Patronus Charm this morning!!"
Instantly, a chilling sense of dread filled everyone.
If Harry's vision was real...
Who was teaching them before?
---
Maybe POwer stone ?