You're the Hogwarts Dragon Knight?!

The Defense Against the Dark Arts Office isn't just staffed by Professor Lupin; Harry is also there.

The desks in the room had all been moved to one side, making the room look much more spacious.

In front of Harry was a large wardrobe, from which came the sounds of clattering and clanging.

Interrupted by William, Harry, wand held high, looked tense, like someone suffering from constipation for over a decade.

"William, you've arrived?" Lupin stood up, his attitude incredibly warm.

"Yes, I've come to bring you your medicine. Professor Dumbledore must have mentioned it to you, right?"

"Yes, thank you so much." Professor Lupin took a breath. "I was just thinking, should I remind you?"

Did you run into Professor Snape at the door just now?

William nodded. "Yes, our conversation didn't go very well... but the professor seemed to be enjoying himself."

How could it not be unpleasant? They turned around and forced William to buy the Wolfsbane Potion that nobody wanted to drink.

No wonder he's the worst of the three evils at Hogwarts!

"Really? Snape was furious when he left the room." Lupin sighed.

Just now, Snape forced him to drink the Potions, as if refusing would be disrespectful.

The Potions reeked of stinky feet, so if Lupin didn't want to die young, he had no choice but to refuse.

"That Potions is definitely poisonous!" Harry couldn't help but interject. "We should tell Professor Dumbledore; he might not know yet."

Harry always felt that if he hadn't been there, Lupin would have been grabbed by the chin by Snape and forced the Potions down his throat.

Harry moved away from the wardrobe and quickly moved closer, looking down at the cup in William's hand.

He knew Professor Lupin was in poor health; Snape used to brew Potions, but now it was William did it.

He couldn't help but ask curiously:

"William, what kind of Potions is this?"

Lupin tensed up, afraid that William would let something slip.

"Harry, Professor Lupin won't want you to know his little secret."

William smiled and whispered, "Kidney tonic."

"..."

Harry gave Lupin a strange look; the professor was indeed pale... so it was kidney deficiency!

etc...

Snape brewed Lupin some kidney-tonifying medicine, and looked like he wouldn't be happy if Lupin didn't drink it!

Ah, this...

Harry suddenly realized that he had discovered something incredible.

Lupin took the cup, sniffed it, and a satisfied look appeared on his face. "A familiar taste. I used to find it unpleasant, but now it smells really good."

"William, I know you're busy, thank you for making it for me."

I've never been very good at Potions; Professor Slughorn didn't like me much back then.

"Professor Slughorn?" Harry asked, puzzled.

"The previous Potions Professor retired many years ago. Professor Snape took over his position after he left," William explained.

"You know Professor Slughorn?" Lupin was extremely surprised.

"Professor Dumbledore mentioned it," William said calmly.

Dumbledore had mentioned this old professor after the Chamber of Secrets incident last semester.

In the headmaster's words: Slughorn was formerly the head of Slytherin House, and he was a big fan of Tom; the two were very close.

When Voldemort fell, Slughorn was overjoyed and acted strangely.

Dumbledore thus suspected that Slughorn and Tom had shared some dark secrets.

The principal is now trying to get some information out of him.

Lupin brought the Potions to his lips, took a sip, and began to tremble.

After breaking out in a cold sweat, he breathed a sigh of relief, "It's a pity I can't add sugar. But William, your Potions skills are amazing, and you're only in fourth grade!"

What was he doing for those four years?

He and James spent their days hunting falcons and dogs, either playing pranks or going out at night.

Oh, and I also need to help James devise a plan to pursue Lily and sabotage her fragile friendship with Snape.

Is it difficult to cook?

Harry stared at the cup, licked his lips, and seemed to want to taste the saltiness as well.

He didn't care whether it was good for his kidneys or not; he just wanted to taste it.

He has this quirk: he likes awful-tasting Potions!

"It's very difficult; only a few Potions Master can make it," Lupin gave an affirmative answer.

"Only this medicine can work for my minor ailment. I'm very lucky to have met two wizards who can brew this kind of Potions."

Lupin asked curiously, "Oh, maybe Hermione can make it too?"

"She's not quite there yet," William said with a smile, shaking his head. "However, she can help me with many steps."

By second grade, Hermione was already able to brew Polyjuice Potion on her own. She was very talented, but still lacked experience.

William needs to continue patiently training and guiding them for several more years.

Harry clicked his tongue slightly. He knew William and Hermione were powerful, but he hadn't expected them to be this... powerful!

We're so familiar with each other that I don't really feel anything.

But upon closer reflection on what the two had done, one realizes... the gap between him and the two is greater than that between a dog and a person.

I can't keep going down this path with Ron, copying homework every day. I have to start doing something completely different!

If William knew what Harry was thinking, he would only sigh that Harry was... too naive!

Copying homework is either a one-time thing or an endless series of times.

This is an addictive habit: before doing it, you're in a rush; afterward, you're filled with guilt and vow never to do it again.

"What are you doing?" William looked at the shaking wardrobe, which was now shaking even more violently.

"Practice the Patronus Charm?"

"That's right." Lupin gestured for Harry to continue practicing.

Harry left reluctantly; he was now more interested in Potions than the Patronus Charm.

"Would you like a cup of tea?" Lupin asked.

He tapped the kettle with his wand, and a puff of steam suddenly shot out from the spout.

William nodded and glanced at the office.

The room decorations were not much different from those for Halloween, but there were many more Magical Creatures added.

In the distance, inside a large water tank, a sickly green creature with pointed horns pressed its face against the glass, making faces at William.

Lupin handed over the teacup and said, "Fantastic Beasts: Grindylow, I'm going to give this to the third-year students; they're too far behind."

"Yes, that's true. We learned it in first grade... Professor Tywin taught it."

"Tywin, I remember him. He used to be on good terms with James. I didn't expect him to be a Death Eaters too."

William raised his eyebrows.

Lupin probably didn't know that the two had a better relationship than just a good one... Tywin even wanted to be Lupin's "sister-in-law."

However, his childhood sweetheart story couldn't compete with Lily's sudden influx into the picture.

And Snape, the childhood sweetheart, couldn't compete with James, the newcomer.

This is truly a tragedy.

Professor Lupin said with a slightly bitter tone:

The world changes too fast; people who seemed promising back then often end up being unpredictable.

"You still insist that Pettigrew Peter is alive?" He glanced at William and couldn't help but ask.

"Yes, I believe in the judgment I've reached after careful consideration," William said calmly.

"Do you believe it, Professor?"

"I... I'm not so sure." Lupin sighed, his gaze wandering as he stared into the distance, lost in thought.

For the past ten years or so, he has lived his life day after day, neither particularly happy nor particularly sad.

Only when he is alone occasionally does he unconsciously think of the Marauders, and a sense of loss flashes through his heart.

Now, suddenly telling him that Peter might still be alive, and that there might be more to the story than meets the eye...

Merlin, if Sirius is truly innocent, how did he manage to spend so many years in Azkaban?

Lupin felt incredibly ashamed because, all these years, he had never thought of investigating what happened back then.

They simply chose to accept it and run away.

Just then, an owl suddenly Accio from a distance, passed through the window, and landed on William's hand.

He took the letter down and began to read it carefully.

Not far away, Harry's entire attention was on Boggart.

The Boggart, now Dementor, attacked him frantically.

Harry's eyes were resolute. He brushed his bangs aside, flipped his right hand, and a wand appeared in his hand.

I closed my eyes and tried hard to recall happy memories.

Harry's mind drifted back to: the first time he spoke to Cho, the first time he greeted her, the first time he dreamed of Cho...

He suddenly opened his eyes, a confident smile spreading across his lips.

Harry flicked his robes, pointed his wand at the Dementor, exuding an indescribable air of nonchalance.

"Expecto Patronum!" he exclaimed confidently.

A thin mist of white smoke billowed out, Harry struggled for only half a second before collapsing to the ground, his body convulsing.

At this moment, Lupin was still reminiscing about the past and had completely forgotten about Harry.

William was reading the letter and didn't notice Harry.

The Dementor looked around and, finding no one to stop it, lifted its robes, opened its cherry-like mouth, pressed it against Harry's lips, and began to suckle intently.

The letter came from Bertha Jorkins, her own top secret agent.

She reminded William that Ludo Bagman, the Department of Magical Games and Sports, would be visiting Hogwarts.

Ludo Bagman?

After William finished reading the letter, he looked up and saw the Boggart, now Dementor, trying to give Harry a deep kiss.

Holy crap!

You're Yin Zhiping, the Hogwarts Dragon Knight?!

You beast!

William felt in his pocket... My wand... Wait, where's the camera?!

(Please vote for this post, everyone!)