William didn't know how he got to the library.

He looked at the closed door in front of him, and there was some hesitation in his heart. This is the first time that he has completely detached himself from the plot he is familiar with, facing a completely unknown thing.

William didn't like the feeling of the unknown, which made him feel that things were starting to go out of his control. Do you really want to do this?

He stood in front of the closed door of the library and thought for a long time, and finally, William took a deep breath, held his wand in his hand, and slowly pushed the door open of the library.

The library is empty, and now that the exam is over, where will any students come to study in the library on the fifth floor of the castle.

William walked into the room, and it was as if he were alone. He watched cautiously around him, his wand on standby.

The long empty table, the neatly arranged bookcases, the counter in front of the forbidden area, and the black ravens looking at themselves from above, everything looked the same as usual.

Wait, black raven?

Dry! How could it be here!

William jerked his wand at the raven, but the latter only pursed his lips disdainfully, revealing a human expression, and the stinky bird was mocking himself.

Before William could get angry, a creepy voice came from behind him.

"The library is closed."

This is Mrs. Pince's voice!

William turned, and "Mrs. Pince" was standing there with her usual face, the familiar feather duster in her hand.

The raven also flew over the shoulder of "Mrs. Pince" from the counter, staring at William.

Looks like everything is fine,!

"Who are you? Why is it targeting me? William pointed his wand at "Mrs. Pince" in front of him.

"Wilhelm Friedrich, I've been paying attention to you for a long time."

The witch in front of her didn't care about William's wand, as if it were just some child's toy. She smiled, and then spoke, but her voice changed to a hoarse male voice.

It's a weird feeling, and when you hear a hoarse male voice coming out of the mouth of a middle-aged woman, William takes a few steps back nervously, his palms covered with sweat.

"Who the hell are you? What is the purpose? He continued, his voice rising a lot.

"I've been watching you since the beginning, but it's a pity that you didn't find out about my existence until the end of the semester." The mysterious wizard did not answer William's question, but continued to speak to himself.

Listening to what he meant, it seems that he has been observing William for a long time.

In the beginning? The library on the first day of school?

I'll make up! No wonder I thought something was so wrong with Mrs. Pince that night! Did he replace Mrs. Pince at that time?

Old Deng, what are you doing! Don't do anything! Such a big living person was replaced under your nose, don't you know?

William despised Dumbledore's irresponsibility in his heart, and he now regretted that it was not a wise decision to face a mysterious wizard who could hide from Dumbledore alone.

I knew that I might as well go to Lao Deng to turn myself in, maybe I could save a dog's life, and then it was a big deal to run back to Durmstrang.

"Why the hell are you doing that? Iron Fist Swing! William took a deep breath and asked pretending to be calm, and then without waiting for the mysterious man to answer, William blasted towards the mysterious man with an extremely effective impact spell.

Then he ran towards the gate without looking back, joking, facing a wizard who can really hide from Dumbledore, what are you waiting for if you don't run at this time, wait for death?

William was not willing to leave his fate in the hands of someone else.

"Interesting little trick, then let me examine you and see if you are qualified to know those things."

The mysterious wizard said something that William couldn't understand at all, and when he waved his hand, William keenly felt that Peng Pai's magic power gushed out, condensing into an invisible wall in the air, blocking William's spell.

Can the Iron Armor Charm still be used like this? It's still a wandless and silent spell, and it's going to be finished!

William didn't care about this, he rushed to the door, and pulled the doorknob, but the door didn't move.

"Alaho Cave Open!" William quickly recited the lock-picking spell, but the door remained unmoved.

It's really over this time!

William turned his head and pressed his back against the door. He didn't continue to try to use the lockpicking charm, because under his magical perception, the walls of the entire library formed a closed barrier along with the door.

This is not a problem that can be solved by a simple lockpicking spell, and he will definitely not be able to crack it with his current ability.

"You've finally sensed that this magical barrier can keep Dumbledore out of detection, so no one can save you now, William Friedrich."

He watched William's movements and stood there quietly, not at all worried that William would leave.

"What the hell is your purpose?"

"Come to fight, if you pass the assessment, you will know all this, otherwise, you will die in obscurity, this is for your good." Mrs. Pince continued to chatter, looking a little crazy.

Dry! You want to kill me for my own good? Is the person in front of him a madman?

You forced me!

William waved his hand, and with a low shout, one after another spells quickly broke away from his wand and blasted towards "Lady Pince". He had been practicing with Professor Flitwick for so long, and the level of dueling was much stronger than when he first entered the school.

"That's pretty much it." The mysterious wizard disguised as Mrs. Pince seemed pleased with William's fighting spirit.

He wielded the feather duster and fired spells from it, breaking William's spell one by one.

Is this his wand? It looks really curious. William didn't have time to think about it, he jerked his head down and rolled to the side, and then a spell struck where he had been standing.

With a wave of his wand, the wizard flew up the library's books, conjuring large mouths full of fangs under his masterful transfiguration, and swooping down in the air towards William.

Can Transfiguration still be used like this?

"There are many obstacles! There are many obstacles! There are many obstacles! William cast several obstacle spells in a row, temporarily slowing down the speed of the book.

He quickly mobilized his magic power, and William couldn't think too much about it at this time.

"The flames are blazing!" This was the second time he had used his magic skills. William unleashed his magic and unleashed a powerful fire spell.

A thick pillar of fire erupted from William's wand, creating a curtain of fire in the air, temporarily blocking the book's attack.

William's head was covered in sweat, not only from the heat, but from the fact that he was about to lose control of the spell.

He gritted his teeth, severing his connection with the spell and quickly adding an iron charm to himself.

The flames were completely out of control and became manic, and the wildest side of the four basic elements was unabashedly revealed in front of William.

Like a wild horse, it wildly ignites everything around it. William was also struck hard by a long whip of flames and fell out.

William felt his brain feel particularly heavy, and the scene in front of him gradually blurred, he forced his eyelids to rise, and before now, the mysterious wizard had already controlled Mrs. Pince to walk in front of him.

The blazing flames around him didn't seem to affect him at all, and even took the initiative to retreat from him as he passed.

Are you going to die?

The mysterious wizard crouched down and looked at William who had fallen to the ground. Said a word to himself.

Then William was completely plunged into boundless darkness.

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