On Sunday, Room of Requirement.
Except for Alvin, they are already inside.
"Why isn't Alvin here? Hermione, do you know what he's doing?"
Harry waited for a little anxiously, and it didn't take long for him to ask Hermione when Alvin would arrive.
Hermione was also annoyed by Harry, "Harry, I've said it several times. He's looking for Luna and Astoria."
Draco wouldn't let the taunting Harry's chance pass.
"Potter, I know why you're in such a hurry, don't worry. The Dementors won't go into Hogwarts."
Many people know that Harry fainted. Now that Draco said this, he couldn't refute it even if Harry's face flushed with anger.
In fact, this is also the reason why Harry is so urgent. Last time on the train, he was the only one frightened and fainted by the Dementors, and even Luna only showed great pain and did not faint.
This makes Harry, who has strong self-esteem, a little unacceptable, which is why he is eager to learn the Patronus Charm.
At this moment, the door to the Room of Requirement opened.
Alvin came in, holding Loli in each hand.
It was Astoria and Luna.
At this moment, Astoria's little face was confused, and her eyes were slightly unable to open as if she had not woken up.
On the other hand, Luna was much better and greeted Hermione and Cho when she came in.
"Okay, everyone is here. Let's get started."
Alvin was also helpless. He was delayed for so long because Astoria slept late.
He doesn't have any Slytherin female friends, and if he hadn't met Astoria's sister, Daphne, who happened to come out, he wouldn't know when to wait.
When everyone heard Alvin say this, they all became excited.
Alvin summoned the blackboard, tapped it with his wand, and all the essential techniques and casting of the Patronus Charm appeared on it.
Using his wand as a pointer, he tapped on the blackboard, and Alvin began to explain.
"Patronus is a powerful and, of course, complicated spell."
"Normally, only powerful wizards could display a corporeal Patronus, while ordinary people can only emit some white mist."
"Generally, Patronus Charms can only be used to defend against Dementors, but powerful wizards can use Patronus Charms to do many things."
Alvin waved the wand in his hand and whispered a spell.
"Expecto Patronum!"
A silver-white Unicorn ran from the tip of Alvin's wand.
This was also the first time everyone had observed a complete Patronus up close.
Even though they had seen the Unicorn Patronus last time on the train, they didn't see the whole picture due to its large size.
This time Alvin deliberately controlled the size of the Patronus, keeping it the same size as Celestia.
If it weren't for the different colors, everyone would have thought it was a living Unicorn.
Controlling the Patronus to surround everyone, Alvin continued to introduce the spell.
"For example, I could use a Patronus Charm to deliver a message."
When Alvin spoke, the same sound came out of the Unicorn's mouth, which surprised everyone.
"And when the Patronus is more powerful, it can block the spell for you or even attack the enemy."
Alvin raised his wand, and the Patronus instantly rushed towards a target, shattering it into pieces.
"Okay, next, let me talk about the casting. The Patronus Charm is a spell whose emotional power is greater than magic."
"To successfully cast the spell, one began by mustering the happiest memory they could think of."
"The more delighted the memory, the better the charm would work. Alternatively, imagine a scenario that would make for a happy memory."
"This is the difficulty of the Patronus Charm. The wizard's will determines the upper limit of this spell."
After saying all the essentials in one breath, Alvin stopped talking.
After saying this, Alvin also let everyone start practicing.
He didn't take out Wolong and Fengchu in the first place, and it's useless.
Letting everyone display a corporeal Patronus before letting the two of them out is better.
For the next two hours, everyone kept trying the Patronus Charm.
However, everyone's progress could have been faster. Only George and Fred took the lead in summoning a cloud of silver-white mist.
And the best of the others was Hermione. A cloud of silver-white mist emerges now and then from her wand.
The two idiots, Draco and Ron, made their voices hoarse, but their wands still didn't respond.
Seeing this situation, Alvin also frowned.
Clap to stop everyone's practice, Alvin also took out the secret weapon he had prepared.
The Elixir to Induce Euphoria.
This is a kind of potion that can make people feel happy and stay excited. It is very helpful for practicing the Patronus Charm.
Sure enough, after everyone took the Elixir to Induce Euphoria, everyone made significant progress.
Not long after, the twins finally succeeded in summoning a corporeal Patronus.
Although the figure is not very dense, the appearance of the figure is already visible.
Everyone looked at their Patronus curiously, but they didn't know what animal it was.
"It's a Magpie."
Alvin answered.
He also did not expect that the twins' Patronus was such a festive creature as a Magpie.
He also thought that the characters of these two people must be animals like the monkey.
"So beautiful."
Hermione said enviously, and the other girls nodded.
Fred and George gave a happy high five.
"Nice job, Fred."
"You're too, George."
Alvin also let the two share their successful experiences, but what they said made everyone laugh.
"When I cast the spell, I thought that after the last time I was caught by Filch, I said I was George."
This is what Fred said.
And George glanced at Fred and said happily. "What a coincidence. What I was thinking was that the last time Professor McGonagall deducted points for me, I used Fred's name."
After the two finished talking, they burst out laughing at the same time.