It's Thursday, and Roy has been lying in the school hospital for two days.

"I'll tell you, that Malfoy is ......," Ron said indignantly, sitting next to Roy's bed, dancing with his hands.

Roy listened with interest, interjecting occasionally.

"So, Malfoy is going to duel you tonight?"

"yes. He was like that, it was literal. Ron nodded.

"What about the spell I taught you earlier? Based on the rate of Harry's progress in the past few days, he should already be able to flicker with fluorescents, right? Roy asked curiously.

He had taken the trio to the abandoned classroom, where he taught them a little bit of mana control, and when they came to visit him from the secret realm, Roy had told them to go there every day at noon to practice, and now Harry was able to control his mana better, and the other two were slightly inferior.

"Yes, yes, but...... Fluorescent flickering seems to be useless in a duel. Harry blushed and said.

"Who said it's useless, you can throw one in Malfoy's face while he's not paying attention, and the guarantee is also half a day blind." Roy asked, confused.

"But my glow spell ......" Harry pulled out his holly phoenix feather wand, and a small ball of light appeared on the head of his wand.

"I'm sorry, it's my habitual thinking." Roy looked at the pitifully small ball of light, he didn't eat the fireworks of the world, and he didn't know that the fluorescent spell comparable to a flashbang was not a wizard's standard.

"Maybe you can hide in the shadows, and then see Malfoy coming, throw a ball of light in place, and run away while Filch goes to play cat and mouse tricks with him?" Roy proposed.

The glow spell that the three Harry learned was something he had modified, and even beginners could keep the ball of light stuck for a while.

Harry Ron, you look at me, I look at you, and his eyes can't help but release a light of excitement.

"Hermione should stop you, right?" Roy asked.

"Her, you leave her alone." Ron hammered the bedside table and said indignantly.

"It's time for you to go." Madam Pomfrey, the school doctor, had a gloomy face.

Anyway, let's get the two of them in touch with that thing first. Roy thought to himself after they were gone.

……

It was the most energetic night since Harry entered the school except for the first day of school, and he kept deducing in his mind how to defeat Malfoy, and various plans were proposed and rejected by him, tossing and turning. Malfoy's sarcastic face kept popping up in the darkness - it was a great opportunity for Harry to defeat Voldemort face-to-face, and he couldn't pass it up.

"It's half past eleven." Finally, Roy whispered, "We have to go." ”

They donned their wizard's robes (which Roy had requested, and he said he had enchanted them, just as they were on their way to the abandoned classroom), picked up their wands, and tiptoed across the room down the spiral staircase into the Gryffindor common room. The embers in the fireplace glowed reddish, and from time to time a few sparks burst out, and everything in the lounge seemed to be covered in black.

"I can't believe Roy didn't stop you." A light flickered on, and Hermione Granger was wearing a pink dressing gown, frowning, sitting in the chair closest to Harry Ron and them.

Ignoring her, they walked straight past her, pushed away the portrait of the fat lady, and crawled through the hole.

Hermione wouldn't give in so easily, yelling at them as she followed them.

"You're going to regret it." When she tries to climb back, she finds the Fat Lady out of the frame, and she is locked outside the Gryffindor Tower.

"Oops, what should someone do now?" Ron finally replied bitterly.

"We've got to go, we're going to be late." Harry reminded.

"I'll go with you." She said.

……

Roy walked through the dark campus and felt it comfortably.

He is faking illness, not really sick. As for whether people will wear gangs or anything when they are not in the school hospital, he has the means.

"Look who this is! Nasty first-grade little ghost head! An untimely shrill voice rang out, and a ghost cried out happily.

"If I were you, I'd choose to visit the other towers. Peeves. Roy said calmly.

"Tsk, tsk, tsk, is this a threat to the great Peeves-sama? Little ghost? Peeves laughed.

"I know a lot of ways to deal with disembodied guys like you, but they never come in handy, are you sure you really want to be my first test subject?" Roy kindly reminded.

"You think you're ......" Before Pipsqueak could finish his nonsense, he was hung on the wall and his mouth was sewn shut.

Is this Peeves a cultivator in the Soul Temple? Roy thought.

It's here. He pushed open a wooden door, and a three-headed dog that filled all the space from ceiling to floor was staring at him as if it were about to tear him apart.

"Good evening, Loewe." Roy smiled and greeted the prehistoric beast of Cerberus, as if it were not a threat.

And as it turned out, as Roy walked towards the trapdoor, the big dog suddenly lay down and looked at him flatteringly. Roy touched the head in the middle of it, and there was a loving glint in his eyes.

"What a cute creature, good, I'll give you a few more heads in the future." Roy said kindly.

The trapdoor popped open on its own, and Roy jumped straight in.

He landed straight to the ground, and the devil's net did not stop him, but avoided it from a distance, as if he touched even a corner of Roy's clothes, it would be a blasphemy by a courtier against the king.

After Roy passed through, the demonic web was re-intertwined, much thicker than before, and spikes grew.

Roy descended the slope to a room where countless keys were flying, and he took out his sword and waved it, and the keys flew faster, and they all became more or less the same, all of them became silver keys with azure wings, and the difference was barely noticeable except for the slight difference in the key stem.

And the grooves of each key are different, and there is no situation where one key is out of place with the others.

Roy summoned a key, touched it, and let it fly back as he walked through the door himself.

A pair of black-and-white sons with well-walled walls - now a medieval-style army ready to go, with swords enchanted and swords with thunder and fire.

The sword of thunder and fire belongs to yes.

A troll with a big stick, endowed with wisdom.

A logic question was changed to "What is the purpose of the universe?" ”

With great difficulty, Roy finally made his way to a mirror.

Not the Mirror of Eris.

"The Philosopher's Stone, the closest thing to the 'Soul of the World'." Roy whispered.