Black's first encounter with Peter

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"I warn you, you can't do anything weird in tomorrow's class. Peter Pettigrew is very alert, but don't let him get caught!"

Ethan warned Sirius.

"I understand! I'm not a fool!" Sirius replied impatiently.

The time soon came for Ethan's class, and he brought Sirius into the classroom on time.

Ethan's first class in Signs was given to third-year Gryffindors with Slytherin.

His prestige at Hogwarts is unparalleled today, and all students don't want to be late for Professor Ethan's class.

So the little lion and the little snakes arrived at the classroom early, and Ethan became the last one to come.

Ethan walked briskly to the podium, "I think we are all familiar, so I don't need to introduce myself."

"Sign Studies is the latest course offered this year, so you will be the first students in the magical world to receive this knowledge."

When many students heard Ethan's words, their eyes lit up. Ethan's words made them curious about the knowledge they were about to encounter.

"I think some students have used their spare time to read textbooks to gain a preliminary understanding of Signs." Ethan's eyes swept over the students.

Everyone stared at Ethan attentively, with a notebook on the desk and a quill in his hand, for fear of missing the point of knowledge Ethan said.

"Let me ask a question first: what is a Sign?" Ethan asked everyone.

Sure enough, when Ethan finished speaking, Hermione raised her hand high.

"Miss Granger, tell me." Seeing that no other students raised their hands, Ethan had to call out to Hermione.

Hermione served as a Signs assistant for a whole semester, which was an additional advantage for her.

"The Sign is a simple and effective spell that does not require a magic wand or complex spells and can be cast with one hand in battle. They are currently known and practically used."

Hermione was so excited that she had been preparing for this day since she learned Hogwarts would have a Signs class during the summer vacation.

"Okay, okay, Miss Granger." Ethan interrupted Hermione's story unexpectedly.

"Please leave me a little bit of content. Otherwise, you will finish the content of today's class." Ethan teased with a smile.

The students in the class laughed kindly, and Hermione finally realized that she was a little too active; her face was a little red, and she hurriedly sat down.

"Miss Granger is right, five points for Gryffindor," Ethan said.

Without Ethan's reminder, the rustling of pen and paper immediately came to mind in the class, and everyone had already written down the answers Hermione had just said in their notebooks.

"Next, I will introduce different types of Signs," Ethan said to everyone.

"Mr. White, please come over here," Ethan said.

Sirius hurriedly stood in front of Ethan.

"The first sign, the Aard Sign, can release a shock wave of psychic power, which can be used to knock back, stun, knock down, or even disarm opponents and destroy obstacles."

"Mr. White, please stand firm," Ethan said to Sirius.

Only then did Sirius understand that Ethan wanted to target him and that he wanted to speak out against it.

But seeing Harry sitting in the seat looking forward to it, Sirius still gritted his teeth and accepted Ethan's arrangement.

"Aard"

Ethan quickly drew a rune with his hand, and an invisible shock wave hit Sirius, staggering and nearly causing him to fall.

"This is the effect of the Aard sign. Of course, I didn't show my full strength. Mr. White is my assistant, not my enemy." Ethan said humorously,

Everyone laughed in cooperation, but more of them were excited—this powerful magic, which can be easily used without a wand, greatly interested the students.

Then Ethan showed everyone the Igni Sign, which could cast ferocious flames. Of course, this is a dangerous sign that Ethan did not experiment with Sirius.

Quen's Sign, which can create a shield, Ethan let Sirius attack his shield at will.

Because of the inappropriate wand, Sirius's attack was more like a flower.

This made the students look at "Mr. White" suspiciously. They felt that this Mr. White was unreliable, even worse than themselves.

Then Ethan used the Yrden Sign, and a circle of runes surrounded by purple runes appeared on the ground.

The students stared thoughtfully at the circle of runes made by the Sign of Arden, which they thought they had seen there.

"Who can tell the purpose and effect of this Sign?" Ethan asked everyone.

Yesterday, Ethan showed the Yrden Sign on the train while subduing the Dementors. Ethan believed that as long as he carefully observed it, he could always summarize some knowledge from yesterday's scene.

However, apart from Hermione's raised hand, no other students raised their hands, which disappointed Ethan.

Just when Ethan decided to call Hermione, Ron suddenly raised his hand hesitantly.

This surprised Ethan, who immediately called Ron's name.

Everyone stared at Ron in amazement. In the impression of other students, Ron had never answered questions so proactively.

"Mr. Weasley, you answer." Ethan hurriedly called Ron's name.

"The Yrden Sign can make a magical trap on the ground," Ron replied hesitantly.

"Excellent, Mr. Weasley, five points for Gryffindor." Ethan decisively encouraged Ron to stand up and answer the question bravely.

Ethan has already seen that Ron's talent is good; he is very unconfident. He hopes to help Ron build his self-confidence through constant encouragement and affirmation.

"It needs to be added that the Yrden Sign can cause pain, bleeding, slowing, paralysis, and other effects on enemies within a certain range."

The classroom was rustling again as the students recorded Ethan's words.

In the last of the mind-manipulating Axii Sign, he used the Axii to make Sirius do a hilarious tap dance that made the students laugh.

The classroom was full of joy for a while, and the laughter woke Scabbers, who was sleeping soundly in Ron's arms and stuck his head out to see what was going on.

At this time, Ethan had just lifted the Sign on Sirius. Sirius, who had turned around, met Scabbers's eyes.

Sirius's eyes turned red, even though he had promised Ethan not to reveal his intentions.

But the moment he saw Peter Pettigrew, who had caused the death of his friends, Sirius was still swallowed by anger.

Fortunately, he still retains this last shred of reason.

"Mr. Weasley, magical animals are not allowed in class; hurry up and give me your rat!" Sirius rushed towards Ron after saying this.

Sirius's behavior frightened Ron and Scabbers. Scabbers hurriedly got into Ron's arms, and Ron hastily stepped back, knocking over his chair and falling to the ground.

"I'm sorry, Professor White! I'm sorry!" Ron shouted in panic when Sirius turned over the table, grabbed his clothes, and tried to take the mouse out of his arms.

The students in the classroom also looked at Sirius in amazement and didn't understand what was wrong with Professor Ethan's strange assistant.

"Stupefy"

Ethan immediately cast a spell on Sirius, knocking him unconscious.

"I'm sorry, everyone; Professor White has a certain psychological problem; it's mouse phobia." Ethan made up a random name.

"That's it for today's class. Your assignment is to write a paper on the difference between Signs and Uagadou's finger casting."

After finishing his homework, Ethan hurriedly left the classroom carrying the fainted Sirius.