Became good friends with the Boy Who Lived

Aris got an office of his own on the second floor, not far from the DA hut. It was the first time for Aris to sleep outside the dormitory at Hogwarts. I have to say, it felt very novel.

The next morning, after enjoying breakfast, Aries, at the invitation of Professor McGonagall, helped to set the schedule for the sixth grade students of Gryffindor. Finally, Professor McGonagall even gave Aries a teaching assistant schedule. According to the contents of the schedule, Aries had to go to the corresponding classroom and become an assistant to the professors of various subjects.

After finishing all this, Aeris returned to his office and thought about what he should do this year: in which hidden corner of the castle should he carve the secret summoning array pattern; what should he teach at the DA gathering...

Soon it was time for classes, and Aris rushed to the first classroom where he was needed as a teaching assistant: the Defense Against the Dark Arts classroom. Aris only had two teaching assignments today. After completing the morning's assignment, he would have the afternoon's Potions assignment.

When they arrived at the Defense Against the Dark Arts classroom, Professor Snape was already there. After seeing Aris, he just nodded as a greeting.

This classroom was arranged like a basement, with curtains covering all the windows and flickering candlelight, making this spacious and bright classroom look a little eerie.

The students arrived. There weren't many of them, and there were students from almost every college. After the students were seated, Professor Snape swept the entire classroom with a sinister look.

"Dark magic!" Professor Snape spoke softly. Although his voice was very soft, it was enough for everyone to hear what he was saying. "It is varied, numerous, ever-changing, and endless. Fighting against dark magic is like fighting against a cunning giant snake with nine heads. If you cut off one of its heads, two more heads will grow, and they will be more powerful, more fierce, and more cunning than the original head. Dark magic is an unpredictable, indestructible... existence..."

Aeris looked at Professor Snape in surprise, and secretly complained: "Is this really okay? Won't this kind of worship of black magic lead students astray? Next, do you want to say: Long live the Hydra..."

Aeris glanced at the students, and their expressions were equally indescribable. Professor Snape continued, "Faced with a cunning existence, if you want to defend and defeat it, you can only become more cunning, changeable, flexible, and innovative than it..."

Professor Snape showed the students several extremely horrifying pictures, including a person whose soul was taken away by a Dementor, a corner of a village attacked by an Inferi, and the expression of a person tortured by the Cruciatus Curse...

Neville's face turned visibly ugly. Aeris was not far from Neville. He walked to Neville inconspicuously and stuffed a small bottle of potion into Neville's hand. It was a small bottle of joy potion that could temporarily suppress a bad mood.

Neville looked at Aeris gratefully and drank the potion secretly without attracting the attention of Professor Snape.

"Can anyone tell me?" Professor Snape said, "What are the advantages of silent casting?"

Hermione was the only one who raised her hand in the class. Professor Snape glared at several students from his own college, especially Draco, before looking at Hermione. "You speak, Miss Know-It-All!" Professor Snape said softly.

Draco looked at Aeris very innocently, and Aeris glared at Draco.

"It can prevent the opponent from knowing what magic we are using," Hermione replied, "which can give us a momentary advantage..."

"You just copied the answers from the Standard Book of Spells, Level 6. You have no understanding of your own at all, Miss Know-It-All?" Professor Snape asked expressionlessly.

Hermione blushed but said nothing.

"Professor Grindelwald, let's demonstrate it to them!" said Professor Snape.

Aries and Professor Snape stood face to face, six or seven steps apart, both holding their wands to guard against each other. Professor Snape suddenly made a move, and a silent disarming spell came towards Aries. Aries just flicked his wand and cast a silent spell: All Spells End.

"Did you see that?" Professor Snape said, "In a real contest between wizards, victory or defeat often depends on this moment. Now divide into two groups and practice silent spellcasting. One will silently cast a curse on the other, and the other will silently cast a spell to repel it. Now... let's begin!"

Professor Snape sent Aries away to a place far away from Harry to observe and guide the other half of the students to practice silent casting.

"Be confident, Neville!" Aeris instructed Hermione and Neville, "Focus..."

"How shameless, Weasley!" came Professor Snape's disdainful voice, "Let me show you..." Professor Snape pointed his wand at Harry.

"There are so many obstacles..." Harry shouted desperately. Aeris held his forehead with his hand, because Professor Snape only raised his wand to scare Harry, and Harry's stress reaction was a bit too great.

Professor Snape was knocked back and knocked over a desk in a panic. Professor Snape struggled to stand with a scowl on his face.

"Do you remember my request for silent spellcasting, Potter?" said Professor Snape.

"Remember... sir!" Harry replied.

"Remember? Sir!" Professor Snape said softly.

"You don't have to call me sir..." Harry said without thinking.

There was silence in the classroom for a moment.

"Detention!" Professor Snape showed a triumphant smile, "Deduct fifty points from Gryffindor. Come to my office on Saturday night, Potter! I do not allow any student to be rude to any Hogwarts faculty member..."