Hogwarts , my sister is Hermione

Lewis quickly browsed through the spells he had learned in his mind. Now he just wanted to find a spell that could be used to attack. Unfortunately... He was good at transformation, and among all the first-grade textbooks, there seemed to be no dangerous spells.

Curse.

The troll's anger made Lewis feel that his life was in danger. He had a feeling that if he was hit by the giant monster, he might die!

Suddenly, the troll slapped him, and Louis quickly dodged it. But just when it was about to attack Louis with its other hand, a stone suddenly hit it on the head.

Louis was stunned and looked towards the door, only to see Harry holding a few stones to hit the troll. When Louis looked at him, he immediately wanted to explain.

"Louis, I'm sorry! It's my problem! I..."

"careful!"

"Boom~~"

The wall at the entrance to the women's restroom was shot with a huge hole by the troll.

"Harry, are you okay?" Louis asked, looking at the door.

"It's okay, Ron and I both stayed away!"

At this time, Hermione also flew to Louis on a broomstick. Just when she wanted to say something, Louis said before her:

"Hermione, quickly, go find the professors!"

When Hermione heard Louis' words, she immediately used the dust caused by the collapse of the wall to fly out and left this place of right and wrong.

"You two, from now on, all we have to do is delay until the professors come over!"

Louis said to Harry and Ron over there. Suddenly he seemed to remember something and looked at the wooden stick.

"transfiguration!"

The wooden stick changed quickly and finally turned into a long sword.

"accio long sword! (The long sword is coming)"

The long sword flew into Louis' hand, and Louis picked up the long sword with his left hand and pointed it at the giant monster.

While the troll's attention was still on Harry and Ron, he quickly stepped forward and stabbed the troll's thigh hard. At the same time, the long sword also pricked the troll's skin open, revealing a blood-red wound.

Wound.

The troll subconsciously slapped Louis. The troll was very fast this time and he did not react this time.

With a "bang", Louis was photographed. The moment his wizard robe received the attack, it emitted yellow light like a shield. The light only lasted for a moment.

Louis was hit against the wall by the troll.

Seeing this scene, Harry exclaimed: "Louis!" while Ron was completely dumbfounded.

Feeling the pain in the bones and internal organs in his body, Louis could clearly feel that only one or two bones seemed to be broken.

He glanced at his wizard robe. It must have been a defensive rune, otherwise the troll's hold just now would have been enough to kill him directly, or the bones would have been broken into pieces and he would have fainted.

Louis looked at Harry and Ron. They seemed to have no idea what to do at this time. He could only endure the pain and shouted to them:

"Levitation spell!"

Harry seemed to suddenly think of something after hearing Louis' cry, and looked at the huge bricks on the ground that had been punched out of the wall by the troll.

"wingardium leviosa!"

However, the bricks only floated about two meters away. Upon seeing this, Harry immediately shouted to Ron behind him:

"Ron, let's work together! Try to use the floating spell to send this boulder above the giant monster! Just like Louis just now!"

"Oh, oh, okay!" Ron had come to his senses, listened to Harry's instructions, and pointed his wand at the boulder: "wingardium leviosa!"

"wingardium leviosa!" Harry also cast the spell immediately.

Seeing the huge boulder swaying towards his eyes and flying over the head of the giant monster that was walking towards him, Louis breathed a sigh of relief, but seemed to have thought of what just happened.

He looked around and saw the long sword that flew out after being hit by the troll. He picked up the wand at hand with his right hand and raised it slightly.

"wingardium leviosa!"

After the last floating spell was cast, the long sword flew up with the blade facing downwards. Louis' eyes were fixed on the boulder long sword and the giant monster, and he kept praying in his heart that no accident would happen this time.

Fortunately, the goddess of luck favored him. With a "bang", the giant monster was crushed by the boulder and fell in front of him.

And just when it wanted to stand up, a long sword fell straight down, passed through the giant monster's head and was inserted into the ground.

Blood spattered Louis, but Louis laughed because the giant monster was finally dead and they were safe.

"This way, the troll is over here!"

Hermione's voice came out at this time, and mixed with this voice, there were a lot of footsteps. After hearing these sounds, the tight string in Louis' mind relaxed, and he couldn't bear it mentally.

Fainted.

A few seconds later, Hermione rode the Nimbus 2000 and saw Harry and Ron, as well as the doorway to the women's room that looked like it had been demolished, but she didn't care about it.

She jumped off the broom and walked into the women's restroom, where she saw a giant monster crushed by a boulder and the sword stuck in the monster's head.

Louis, on the other hand, was leaning against the wall, his body falling to the right, holding his wand tightly in his right hand.

"Louis!"

Hermione cried the moment she saw Louis, and quickly put her hand under his nose. After feeling his breathing, she immediately shouted to the professor who had just arrived from behind.

"Alive, Louis is still alive, please save him quickly!"

Professor McGonagall, who saw this scene for the first time, was shocked for a moment, then came to his senses under Hermione's shout.

She immediately came to Lewis to check his condition. After checking with magic, she determined that only two ribs were broken and there was slight bleeding in various internal organs.

Then Professor McGonagall cast a spell on Louis, making him float while lying flat on his back. Then she took Louis and rushed to the school nurse, and Hermione followed her in tears.

The professor who followed behind him became serious when he saw this scene.

Professor Snape immediately began to investigate the battlefield.

Dumbledore looked at the dead troll in front of him in shock, then noticed that Harry and Ron were still standing here, and he came to Harry and Ron.

"Harry, Ron, I think I need to know what's going on now."

"Okay, Professor, I'll tell you everything I know."

Then Harry and Ron would start from the time of evacuation and tell Dumbledore and the other professors who were listening in detail about what they experienced.

After everything was said, Dumbledore was silent for a moment and didn't say anything. He just asked Harry and Ron to leave.

After they left, Dumbledore said: "Severus, is what they said true?" It wasn't that he didn't believe Harry and Ron, but that what they said was too fantastical.

"It's true, but in their stories, I heard that there was a fool who was not smart enough but still had to come here to show off his strength."

Snape said unceremoniously after answering Dumbledore's words.

Dumbledore seemed to have thought of something, and waved towards the ruins with one hand, and the ruins returned to their original undamaged appearance.

"Sev, can I ask you a favor?" Dumbledore said slowly.

"What's the matter, Professor Dumbledore?"

"Check it out. After all, a student almost suffered a life-threatening injury, right?" A white light flashed through Dumbledore's lenses.

"Okay." After saying that, Snape glanced at Quirrell.