Became good friends with the Boy Who Lived

A fulfilling life made time pass quickly. When Eris noticed it, he had been studying and living in the castle for two months.

In the Charms class on the day before Halloween, they spent a lot of time practicing the levitation spell. "Wingardium, Leviosa!" Aeris controlled the feather used for practice to float up and circled around the short Professor Flitwick. Professor Flitwick kept clapping: "Excellent, Mr. Grindelwald, ten points for Gryffindor!"

Aris spent the rest of the class studying the levitation spell in depth. He tried to reverse the levitation spell to form a pressure spell, which was not easy. He folded a piece of paper into the shape of a " " and then reversed the levitation spell. He was able to flatten the paper initially. The next goal was to completely flatten the creases on the paper.

The learning progress of the rest of the students in the classroom can only be described as “disastrous”; some students even stumbled and couldn’t even complete the spells.

Dean Thomas in particular perfectly demonstrated the saying "explosion is art" every time he cast a spell. This time he was in a group with Harry. Harry practiced to no avail. When it was Dean's turn to practice, he seemed to have mispronounced one of the syllables of the spell, and an ordinary feather made a loud noise like a firecracker. Harry said resentfully, "We need a new feather, Professor Flitwick."

As fate would have it, Hermione and Ron were grouped together. Both of them were quite dissatisfied with this grouping. Ron waved his wand impatiently, but Hermione stopped him dissatisfiedly. "You can easily poke someone's eyes like this," Hermione's voice reached Aris' ears. "Besides, you didn't pronounce the spell correctly. It's: Leviosa, not: Levi-a-sa!"

Ron said unconvincedly: "You are so smart, why don't you try it! Come on!"

When Hermione successfully made the feather float and won five points for Gryffindor, Ron slumped over his desk in frustration and ignored Hermione.

After class, on the way to the next classroom, Ron and his classmates imitated Hermione's tone vividly: "It's: Leviosa, not: Levi-ah-sa, she's so disgusting, no wonder she doesn't even have a friend..."

Aeris looked at Ron strangely, secretly complaining: "How can you say such cold words with your 36-degree mouth?"

Someone bumped into Aris from behind, and also bumped into Harry. Hermione walked forward with her head down and sobbing softly. Aris saw the crystal tears on her face.

"She seemed to have heard it." Harry's tone was slightly uneasy.

Aris' tone was somewhat teasing: "Well done Ron, you hurt a girl's heart."

Ron retorted unconvincedly: "This is the truth, she must have noticed it, she herself is a nightmare..."

Aris said to Harry: "You should go to the next class first. I am a little worried about her..."

After saying this, Aeris chased in the direction Hermione disappeared. It turned out to be very difficult to find a girl if she really wanted to hide.

Aris simply skipped class, avoided Mr. Filch, cast several searching spells, and spent a long time before he vaguely heard the whimpering sound.

When he went in the direction of the sound, he saw the sign for the women's restroom. Aris felt a little embarrassed. He couldn't just run into the restroom to comfort Hermione.

Aeris looked around and saw that there was no one around. He cast an Disillusionment Charm on himself to hide his body. He wandered at the door for a while. He really couldn't go in. This was a matter of principle. He had no choice but to call out in a low voice: "Hermione? Hermione! Miss Know-It-All!"

As if recognizing Aeris' voice, Hermione whimpered, "Go away!"

Aris consoled him, "Ron is just like that. When he's in a bad mood, he likes to complain to the people around him. He's really not a bad person at heart..."

Hermione's sobbing voice came: "Of course you boys will speak for boys. Go away and let me cry for a while. I don't have any friends anyway..." She seemed to cry even more sadly.

"Ah~" Aeris sighed and said deliberately with deep sorrow: "I always thought we were friends, but I was just being too sentimental after all. It turns out that Miss Know-It-All never considered me her friend."

A faint laugh reached Aeris's ears, and Hermione's voice sounded a little aggrieved: "Then... let me calm down for a while, can you stay outside... wait for me a moment..." Aeris chuckled and said, "Okay!"

Bored, Aris drew a summoning array diagram with stones on the ground outside. He learned this from the book "Summoning Array and Summoning Magic" borrowed from the library. Aris did not understand the specific function of the array diagram, but he learned it because he was very interested.

It was unknown how long it had been until Aeris finished drawing the formation, but Hermione showed no sign of coming out. Aeris felt helpless and had to urge her: "Hermione, if you don't come out, we will miss the Halloween dinner."

After wiping away her tears and tidying up her appearance, Hermione walked out of the bathroom with a red face, seeming a little embarrassed.

"Let's go," Aeris said. "Hopefully we can make it to the end of the dinner."

Hermione hummed softly and was about to follow Aris towards the restaurant.

Heavy footsteps and panting were heard, and a smell that was a million times more unpleasant than Professor Bigelow's came over. Aerys and Hermione covered their mouths and noses at the same time, but it was no use. The smell still made Aerys feel dizzy.

A huge humanoid creature, at least thirteen feet tall, turned the corner of the corridor. It seemed to notice Aeris and Hermione and walked towards them, dragging a huge wooden stick in its hand.

Hermione seemed to be about to cry with fear. She covered her mouth tightly to prevent herself from screaming. Now she was hiding behind Aeris, trembling.

"There are many obstacles!" Aeris took out his wand and cast more than a dozen obstacle spells in a row, and then cast several attack spells, but the creature had thick skin and tough flesh, and the magic could not hurt its rough marble-like skin at all, and it even angered it.

"It's a troll!" Hermione's voice trembled. "Ordinary magic can't hurt it at all."

"Thank you for your scientific knowledge, Miss Know-It-All," Aeris said helplessly, "But, with all due respect, now is not the time to discuss what it is."

Suddenly, an idea flashed through Aeris' mind. He looked at the summoning circle diagram he drew thoughtfully. The barrier spell could still stop the troll for a while. If this idea didn't work, he would think of other ways.

Aeris took out an exquisite button from his pocket, which he had obtained from his father's collection without telling him. He also tried to get some "scraps" without destroying the collection, such as loose decorations on helmets, buttons on cloaks, oxidized fragments on weapons, and so on.

Aeris felt guilty about this, after all, those were things his father liked, but the magical power of those collections made Aeris want to study them.

Aris placed the button in the center of the summoning array. The array outlined with stones actually emitted a bright light, and a spell naturally appeared in Aris' mind.

Aesus murmured to himself: "Your body is with me; my fate is entrusted to your sword; respond to my call, obey this will, the one who is right, respond to me; I swear here: I am the one who accomplishes all the good deeds in the world; I am the one who conveys all the malice in the world; the three great word spirits will entangle you for seven days, pass through the wheel of suppression, and appear~Guardian of the scales!"

The summoning array diagram shone brightly, a dazzling light flashed, and the array diagram disappeared. In the place of the array diagram stood a handsome young man wearing heavy black armor, holding a huge black shield.

Staring at Eris, the young man spoke in a clear voice: "Servant: Shield Warrior Galahad, I have responded to the call and asked: Are you my Master?"

A Chinese quintessence came out of Aris' mind: "What the hell!" Aris was a little confused. What kind of dream linkage was this?

Eris felt something strange on the back of his hand. He raised his hand and saw a blood-red line on the back of his hand. "Is this a Command Spell? Only one? That's enough!" Eris muttered to himself.

Hermione on the side was also stunned. Aeris did not have time to explain to her because the troll had already broken through the barrier spell and walked towards this side.

Aires didn't have time to think about it. He used his magic power to communicate the Command Spell and said clearly: "Give the order with the Command Spell: Galahad, defeat this magical creature." The lines on the back of his hand slowly disappeared.

As the Command Spell disappeared, Galahad's aura rose steadily. He said confidently, "I will obey your orders!" Then he rushed towards the giant monster with an indomitable momentum. Galahad, holding the giant shield in front of him, was like a human tank.

Galahad demonstrated the art of defense in front of Aesir, showing the two opposite adjectives of heaviness and agility to the fullest. The troll swung his big wooden stick but could not hit Galahad. Every collision of Galahad would cause the troll to be injured and retreat.

There were hurried footsteps in the distance, and Harry and Ron rushed over. Seeing the incredible scene before them, they were also stunned.

"Almost there!" Aeris thought to himself, raising his magic wand. When the troll raised the stick high in his hand again, Galahad rushed towards the troll instead of retreating. Aeris also saw the opportunity and whispered, "Wingardium, Leviosa!"

With a wave of the magic wand, the club in the troll's hand floated up, and Galahad knocked the troll back another step. Aeris suddenly cast the levitation spell in reverse, turning the levitation spell into a pressure spell. The big stick hit the troll's small head heavily, and directly smashed its head into the cavity.

The troll fell down helplessly, raising a cloud of dust. Galahad smiled at Aeris, walked up to him, picked a black gem from his armor, and handed it to Aeris. "I look forward to our next meeting, Master!" After that, Galahad's figure slowly disappeared.

"Bloody hell, what on earth is going on..." Ron hadn't finished his words when a series of hurried footsteps approached from afar.

Professor McGonagall trotted over, followed by Professor Snape and Professor Quirrell.

Professor Quirrell wailed when he saw the troll's miserable state, and slumped against the wall helplessly; Professor Snape looked sinister as he walked forward to check on the troll; Professor McGonagall covered her chest, her usually steady voice a little flustered:

"You...you...you are so brave, how dare you...you better explain it to me..."

Hermione was about to say something when she was stopped by Aries, who said slowly, "This is what Professor McGonagall said: Miss Granger was in a bad mood today, and I have been here to comfort her. Just when we wanted to return to the restaurant for the Halloween dinner, we ran into this troll. Mr. Potter and Mr. Weasley came to remind us, and with our joint efforts, we used the Levitation Charm to defeat the troll."

After checking the troll's condition, Professor Snape said quietly, "Then Mr. Grindelwald, can you explain how you used the levitation spell to kill an adult troll?"

"Is it dead?" Aris was a little surprised. It was the first time for him to kill a creature with his own hands. The uncomfortable feeling passed through his body like an electric current. He felt his stomach twitch violently. Hermione, who was hiding behind Aris, trembled violently.

"It's obvious," Professor Snape said without any emotion, "its head is smashed. In this case, even a giant monster with strong vitality can't survive..."

Aeris calmed himself down and answered truthfully: "In a hurry, I reversed the levitation spell and smashed its stick on its head..."

"Reverse the levitation spell?" Professor McGonagall asked in amazement. Seeing that Professor Snape wanted to ask more questions, Professor McGonagall quickly came to the rescue of Aeris and the others: "Okay, Severus, these children are safe, which is a blessing in disguise."

Professor McGonagall looked at Aries and the others one by one, her expression returning to its usual seriousness. She said sternly, "As for you guys, you should know that it is very rare for underage wizards to encounter adult trolls and survive unscathed. Five points for Gryffindor... five points for each of you. Don't tell anyone about this. Now I want you to go back to the common room immediately..."

The four of them hurried towards the Gryffindor common room. Hermione and Harry wanted to ask something, but Aris whispered, "Let's talk about it when we get back to the common room."

Because a troll broke into Hogwarts Castle, the Halloween dinner ended early and continued in the common rooms of the four colleges.

Aeris and his companions gathered in a corner of the common room and began to enjoy the remaining delicious food from the Halloween dinner.