After such a hurried dinner, Ivan followed the others back to the Gryffindor common room.

Entering the dormitory, Ivan patted his head and remembered something, and took out the invisibility cloak that he had asked for from Hermione.

"Harry, your cloak of invisibility! Thanks, this thing helped me a lot! ”

Speaking of which, Ivan was also a little emotional.

If it weren't for the help of the Cloak of Invisibility, it would not have been so easy for him to deal with the invading Dark Wizards, Bock and the others.

In this way, he had underestimated the power of this deathly hallows before, and in the case that the other party did not specially prepare targeted props, few people could prevent sneak attacks and assassinations in invisibility cloaks.

"So what you're about to do has already been done, so fast?" Harry took the cloak with some surprise, he remembered that Ivan had only asked him to borrow it yesterday evening, and he didn't seem to be going out all day.

"Well, it's just a little thing." Ivan didn't want to mention the time turner, so he said vaguely.

Harry saw that Ivan was reluctant to say it, and although he was still a little curious, he finally shook his head and didn't ask any more questions.

At this time, Ivan was focusing on Spotted's body, the gray-black mouse still dozing off at Ron's bedside.

Perhaps sensing some kind of malice, Peter Pettigrew suddenly woke up from his sleep, looked left and right suspiciously, and found nothing unusual, but there was a faint uneasiness in his heart.

No, I'm going to...

As Peter Pettigrew was thinking this, the whole mouse suddenly froze.

Hey... Have you already said this sentence yourself?

In the middle of the night, Peter Pettigrew, who was trying to sneak out of the house, was caught again.

Ivan pinched the gray-black mouse that had passed out and touched his chin, it was very strange, obviously he didn't need a "guinea pig" to do the experiment now, what was Peter doing so actively?

Don't... Is he addicted to being a guinea pig?

......

The next day, in the afternoon,

Ivan and the others, who had finished a Potions class, walked towards the Defence Against the Dark Arts classroom.

Along the way, Harry and Ron were discussing the house points that Snape had deducted in class, and for some reason they were inexplicably happy.

"I guess when Snape deducted points, he must not have thought that we had no more credits to deduct." Harry said with a smile that he had been deducted a full twenty points by Snape today.

Ron grinned, too, wondering what Snape's face would be like when he saw Gryffindor's empty scorepool.

Ivan looked at the two of them with a strange expression, is this still something to be thankful about?

When everyone arrived in the classroom and sat down, Lupin, as the professor, walked in from outside.

I haven't seen him for more than half a month, and Lupin's complexion is much better than before, but he is still in ragged clothes, and after raising his hand to put the tattered old box on the podium, he said with a light smile.

"Good afternoon, everyone! I'm your new Defence Against the Dark Arts professor, and you can call me Professor Lupin! ”

Speaking of this, Lupin paused, he looked around, saw that the young wizards were all holding thick textbooks in their hands, and then spoke again.

"Today we're going to have a practical class, so please put your textbooks back in your bags, all you need is your wand!"

"Come with me now, let's go to a wider field!" Lupin picked up the old suitcase on the table and motioned for everyone to follow.

The young wizards below were both expecting and worried, and if they could wave their wands, no one would want to sit in the classroom and listen to the lectures.

But Lockhart really got off to a bad start last school year, messing everything up and making everyone feel a little psychological.

"I wish he wasn't like Lockhart—" Seamus whispered to the little wizard next to him.

Lupin, however, turned his head sharply as if he had heard it, and Seamus was startled and his face turned white.

Lupin just smiled at him, didn't say anything, and led the group of young wizards through the empty hallway, around a corner, to a classroom door.

But Peeves, who likes to play pranks, is stuck in the doorway, hanging headfirst in the air, shoving gum into the keyhole closest to him.

It wasn't until everyone was close that Peeves realized that something was wrong, and looked up at Lupin, who was close at hand, and the smile on his face turned bad, and he suddenly floated into the air, clapping his hands and singing loudly.

"Confused Lupin, madman big fool..."

Everyone was surprised to see that Peeves had the audacity to provoke the new professor, and they all looked forward to Professor Lupin's reaction to see how he would deal with the annoying Peeves!

"Peeves! If I were you, I'd take the gum out of the keyhole! Lupin, still smiling, said kindly, "You can't go in and get a broom." ”

Peeves pulled out a grimace in disregard, and it and Filch were already very at odds.

The reason why it occasionally catches a student who violates the rules and makes a big fuss to attract Filch's attention is simply because it prefers to tease the little ghosts, watch them panic, and enjoy a game of peek-a-boo.

Peeves glanced at the crowd and saw Ivan's figure, and his eyes lit up, and he shouted loudly at the top of his voice.

"And you, Hals! Can you tell us about it? When are you going to get us a new professor this time? ”

Lupin's face changed slightly, and he subconsciously glanced at Ivan.

Ivan was also a little tired of Peeves, so he suggested.

"Professor, I think your first lesson might as well teach us how to deal with a troublemaker? I believe you should be very interested! ”

Hearing Ivan say this, a group of young wizards looked at Peeves with bad intentions, and most of the little lions in Gryffindor were tricked by Peeves,

"Of course, no problem!" Peeves' previous words made Lupin, a good gentleman, a little angry, so he followed Ivan's words and said to everyone. "I know of a useful little spell that can be used specifically for this situation."

The smug Peeves' face suddenly became very ugly, and it screamed, and then hurried outside.

But it was too late, and Lupin quickly raised his wand in his right hand and pointed it at Peeves, shouting loudly.

"Wadi Vasi!"

The gum that had blocked the keyhole flew out with a whoosh, and with a "whoosh" sound, it stuffed into Peeves' left nostril, staggering it and scurrying around the hallway in a panic.

The rest of the students did the same, raising their wands and speaking aloud.

"Wadi Vasi!"