Hermione was very clever, and her first reaction to the troll was to scream, but before she could make a sound, she quickly raised her hand to cover her mouth, suppressing the scream.

Then Hermione stared at the troll in horror and slowly stepped back until her back slammed into the compartment door.

The troll stared straight at Hermione all the time, with a predatory look on his face.

At this moment, as Hermione's back touched the wooden planks of the compartment and made a soft sound, the troll seemed to have been flipped on and off, took heavy steps, and took a step forward with a 'bang'.

Hermione finally collapsed in panic. At this moment, she lost all her composure, turned around to open the door in a panic, and got into the compartment, as if the small wooden compartment could protect her.

Seeing the little guy hiding, the troll raised the giant stick in his hand in annoyance, and was about to sweep away towards the compartment.

At this time, Kewen, who had always been invisible to the troll, finally made his move.

Raising his hand, he pointed his wand to the right armpit of the troll, which was exposed by swinging the club, and fired a silent skill 'Lightning Charm', and a tiny electric light instantly hit the troll's armpit.

Under the conditioned reflex of pain, the troll trembled, and subconsciously let go of the giant stick in his hand.

Kewen's second spell was the 'floating spell', and the tip of the wand was aimed at the giant stick that had not yet landed, causing it to float in the air.

At this moment, there was a sound of rapid footsteps, and Harry Potter and Ron finally suppressed their fear and ran in from the door.

But after seeing the troll, the two of them couldn't help but stiffen in fear and froze at the door.

And the giant monster, who was a little dazed just because he saw the stick floated out of his hand, was also called back to God by the movement made by Ron and the others.

"Roar!"

The troll was disturbed by someone's hunting, so he roared with his stinky mouth open, and without thinking about why the stick was floating in the air, he immediately reached out to the stick, intending to grab it back into his hand.

"Hermione! Run!"

At this time, Harry Potter finally got rid of his fear, and hurriedly called out to Hermione who was hiding in the compartment.

Hearing this, Hermione obediently pushed open the wooden door of the compartment, rushed out and immediately ran away from the troll, and ran to the wall at the end of the bathroom.

At this moment, the troll had already stretched out his hand above the stick floating in the air, and was about to grab it with his hand.

How could Kewen get it to do so, so he stepped back towards the bathroom door while commanding his wand silently, causing the stick to keep dodging in the air.

The troll grabbed the stick again and again, but couldn't catch the stick it had been avoiding. After a few times, the troll was so angry that he couldn't help retracting his arm, and clenched his fist and knocked hard on his chest.

After a muffled 'bang', the troll roared up to the sky, and then its bloodshot eyes quickly looked at Harry and Ron.

The troll's limited IQ made it wonder what happened to the stick, but it believed that it was all because of the arrival of Harry and Ron.

Therefore, the trolls shifted their hunting targets, placing Harry and Ron as the first kill targets.

At this time, Kewen had walked to the door of the bathroom stealthily, and then used his wand to control the stick to the height of the ceiling.

But the troll didn't pay attention to the stick this time. It had already taken big strides, making the floor tremble all the way to Harry and Ron.

Seeing this, Kewen immediately changed the spell and used the 'Transfiguration Spell' to transform the high-altitude stick into a thick black cloth.

Afterwards, Kewen controlled the thick cloth to suddenly extend downwards and rushed towards the troll.

Just as Harry and Ron screamed and ran away, the troll bent over and stretched out his hand, only a meter away from the two little ones, when the cloth above suddenly spun, wrapping the troll's disproportionately small head inside. .

Circle after circle, the cloth that spread from the heights continued to wrap around the troll's head.

After being wrapped around five times, the cloth began to spread like a snake again, and the hands that continued to grab the troll to the head were also entangled.

It wasn't over yet, after wrapping the troll's arms, the fabric continued to meander downwards, wrapping the troll's waist, abdomen, and legs one after another tightly.

In the end, the whole black cloth wrapped the troll's body into a black mummy, causing the troll to roar and struggle inside.

The troll is worthy of being a highly dangerous beast, and the strength of the struggle is so great that the cloth wrapped around several layers keeps making a 'creaking' cracking sound.

However, if it wants to break the cloth and escape successfully, it will probably take a while.

So, Corvin paused his control of the Transfiguration spell outside the door, then swung his wand in the direction of the hallway.

A silver-white transparent radiance quickly spewed out from the tip of the wand, and quickly condensed into the shape of a bird in the air, and then the illusory bird flew away quickly.

This is the 'Guardian Charm'.

Since the papers on 'Dementors' were all published, Kewen naturally had to master the magic spell of 'God Guard' that was used to deal with Dementors.

Moreover, Kewen not only mastered the common usage of 'Guardian Charm', but also learned the advanced usage of 'Guardian Charm' from Professor Flitwick.

The effect is just like what Kewen just displayed. After summoning the magic guard, the guard can send information to others and so on.

Having said that, after using the 'Guardian Charm' to send a message to Professor McGonagall, Kewen once again targeted the troll.

The wand pointed to the ground under the troll's feet, and the Transfiguration Charm was released again.

The next moment, the stone floor under the troll's feet suddenly became as soft as rubber, and quickly rose and deformed.

Like flowing water, it started winding upwards along the troll's legs, and soon, the entire body of the troll was completely wrapped.

Immediately afterwards, the 'stone liquid' solidified in an instant, forming an ancient Egyptian-style coffin that completely trapped the giant monster inside.

Since the trolls are all wrapped into mummies, then Kewen will naturally also provide a matching mummy coffin.

As a result, an ancient Egyptian human-shaped coffin with delicate details stood in the bathroom. Under the sparkle of the wall lamp, the golden human-shaped coffin continued to emit golden light to the surroundings.

Listening to the struggles and muffled roars emanating from the coffin, the trio of protagonists were completely dumbfounded, all stunned and amazed.

After a long time, Hermione was the first to react, and couldn't help but shout, "Who is protecting us!?"

Hearing this, Harry and Ron also recovered from their sluggishness, and together with Hermione, they began to look around constantly, looking for who was shooting.

At the same time, the other three hurried footsteps were gradually approaching the bathroom...