From Hogwarts to Strixhaven.

Chapter 235 The last class of the final semester
"Who could this RAB be?" Dumbledore studied the note in his hand. "He was a brave man who dared to stand up to Voldemort and was willing to die for it, yet we have never heard of him except for the fake locket and the note inside. I am sure that none of the missing wizards who openly opposed Voldemort are 'RAB'."

"We need to find this 'RAB', but we can't act in a big way." Ivy certainly didn't intend to expose his ability to predict the future. "Any action that might alert Voldemort or expose the fact that we already know about his Horcruxes must be carried out with caution."

"I understand. Of course I understand." Dumbledore's eyes moved back and forth between the corpse in the lake and the parchment in his hand several times. Finally, he sighed, "It seems that we have to let those who died at the hands of Voldemort stay in the cave for a while longer."

"Leave the task of finding the true identity of 'RAB' to me, Ivy." Dumbledore folded up Regulus's message and put it carefully in his arms. "Maybe he is my student."

"I think he might be one of the Death Eaters." Ivy decided to give Dumbledore a hint, "A person who was bewitched by Voldemort and then came to his senses. Moreover, if he is a student of Hogwarts, he is most likely a Slytherin. Only with such a dual identity would he choose to die after discovering Voldemort's biggest secret instead of seeking your protection."

Dumbledore frowned. "Is that possible?"

"Before Professor Trelawney made that prophecy, everyone believed that you would be the wizard who defeated Voldemort." Ivy said, "Think about how reluctant Professor Snape was when he did things for you. If 'RAB' was a truly noble Slytherin, it wouldn't be surprising to make such a choice."

"I admit that what you said makes sense..." Dumbledore pondered for a moment and nodded, "But let's go back to the castle now... Only there can we carry out the next task."

After a pause, Dumbledore continued: "It's just that the bodies here...we should preserve them all."

"I will freeze the entire lake to stop these corpses from rotting any further." Ivy pointed the silver lime tree wand at the lake, and a cold wind mixed with snowflakes and chill air gushed out from the tip of the wand.

This is another use of the Freezing Spell. Although it can freeze a large area of water, its speed is really not satisfactory, so it is generally useless in battles between wizards. Ivy also found it in a corner of the restricted books section.

The white ice in the lake began to expand, and the pale corpse that was swaying with the waves was gradually sealed in the ice, no longer looking so scary.

Fortunately, there wasn't much water in the lake, so even if he wanted to completely turn it into a lump of ice, Ivy's current magic power could do it.

After dealing with everything in the cave, Ivy and Dumbledore returned to school.

In May, when the end of the semester was approaching, Ivy had nothing special to do except some daily tasks (such as helping Lupin alter his robes. As a wizard, it was not a good idea to always wear stretch shorts from the Muggle world. Magic could easily solve such problems).

Sirius, who had returned to the Black mansion, had sent invitations to all of Harry's friends, inviting them to visit Harry's new home.

As long as he entered the Black mansion, Ivy believed that he could easily find Voldemort's last Horcrux and clear Regulus's name at the same time.

But that was during the summer vacation, and Ivey should now be facing the upcoming OWLs.

Although this is just a formality for him, form is sometimes so important.

While other students were swimming hard in a sea of books and questions for their final exams, Ivy was already leisurely drinking afternoon tea on the shore.

The students at Hogwarts have one last week to review before examiners from the Wizarding Examinations Authority arrive with their exam questions.

However, in the remaining week, something extraordinary happened.

It was an ordinary Monday. Since all students were facing the end of the semester, the teachers usually didn't teach anything new, with one exception - Professor Lupin of Defense Against the Dark Arts.

Considering the generally poor foundation of Hogwarts students, it seems understandable that lectures are still being given the week before exams.

But what the second-year students of Gryffindor and Slytherin were learning in class that day was actually werewolves.

"That doesn't seem to be what we should be discussing right now! Professor Lupin!" Hermione asked boldly. If this was in Snape's Potions class, Hermione would definitely not raise any objections.

"You're right, Miss Granger." Lupin smiled. Ever since Ivy turned the lycanthropy curse into his power, Lupin's complexion has improved rapidly, and he has even grown a few inches taller!

"But I happen to have some new insights about werewolves to share with you. Please turn to page 394." Lupin opened the textbook in front of him - "Dark Powers, Self-Defense Guide". Since Lockhart was imprisoned, Lupin used the old textbook in the Defense Against the Dark Arts class again. Of course, his copy was left by Professor Victor, along with the particularly long syllabus. Lupin found them in the locker in the staff lounge.

Given Lupin's good reputation as a professor, the students in the classroom all did as they were told.

"Who can tell me what the definition of a werewolf is?" Lupin asked with a smile.

Hermione bit her lip and raised her hand unsteadily.

"Miss Granger?" Lupin had been waiting for her.

"I think... it's a wizard infected with lycanthropy." Hermione stood up from her seat, took a deep breath and continued to explain, "As a magical disease, lycanthropy can be spread through blood and saliva among people in contact. Usually, wizards who are bitten by transformed werewolves will be infected with lycanthropy after surviving, while Muggles who are bitten will continue to lose blood. Most of them will die, and only a very few can become werewolves again... This is why people with lycanthropy are basically wizards."

"Five points to Gryffindor." Lupin applauded Hermione's answer. "This is from the textbook. Even I couldn't have answered it any better."

All the Gryffindor students smiled. Although Lupin did not like to target Slytherin in class like Sirius did, he would not be stingy in giving extra points to Gryffindor. Not to mention that they had already found out that Professor Lupin himself belonged to Gryffindor house.

After Hermione sat down, Lupin continued his lecture.

"Besides that, the textbook also explains how to identify werewolves. You should pay special attention to the full moon. If someone often disappears on a certain day, and that day happens to be a full moon..."

"Professor Lupin!" Hermione stood up suddenly and said in an almost pleading tone, "Don't... please..." "Please sit down, Miss Granger." Lupin persuaded softly.

Hermione shook her head firmly. Harry and Ron, who were sitting next to her, were completely confused and had no idea what was wrong with Miss Know-It-All.

"You've already guessed it?" Lupin's eyes sparkled. "That's great. Believe me, Hermione, I know what this means better than you do."

After staring at Professor Lupin for a while, Hermione finally sat down. The two people beside her who still didn't understand the situation immediately started asking questions, but Hermione just asked them to be quiet and listen to the class angrily.

"A werewolf will transform uncontrollably on the day of the full moon. Even if you hide in a room without moonlight, you cannot stop this process. After turning into a werewolf, the person you are familiar with will disappear, replaced by a bloodthirsty monster. It will attack humans by any means necessary, just to turn the other party into a monster like itself." Lupin noticed that the little wizards in the classroom had their eyes wide open and held their breath. He smiled and continued, "However, Mr. Damocles Belby invented the wolfsbane potion a year ago, and he improved it not long ago. This makes werewolves who drink the wolfsbane potion safer on full moon nights because they will regain their sanity. Although the wolfsbane potion cannot prevent werewolves from transforming, it is still a very effective method."

Harry and Ron both noticed that Hermione breathed a sigh of relief, but Lupin's next words made everyone's heart rise to their throat again.

"Smart witches like Miss Granger have noticed that before April, I was the kind of person who often disappeared on full-moon nights. Professor Snape and Professor Black will help me teach in the next few days..."

Malfoy, who was sitting on the other side of the classroom and surrounded by two small giant bodyguards, couldn't help but interrupt him: "You mean... you are a werewolf?"

Lupin nodded, the smile on his face unchanged.

"That's impossible!" Hermione stood up and refuted fiercely, "In April and May, after the full moon nights in these two months, Professor Lupin still gave us classes!"

"Maybe it's Polyjuice Potion or something..." Malfoy muttered quietly, but everyone in the classroom heard it clearly.

Harry, Ron and Hermione immediately cast hateful glances at Malfoy. They were all willing to believe that Professor Lupin was not a werewolf, not to mention that he was Sirius' friend.

"I can assure you that it's not Polyjuice Potion. That stuff is extremely expensive, and as you can see from my previous clothes, I don't have much money on me." Lupin turned out the pockets of his new robe to show everyone, and it was indeed empty.

"It might be a bit troublesome to explain, so I'd better show you."

Under the horrified gaze of all the students, Lupin turned into a standing big bad wolf in the blink of an eye. With his new robe that grew larger, he looked basically the same as the wolf grandmother in the fairy tale.

Before Lupin spoke, none of the young wizards dared to breathe, for fear that the slightest sound of breathing would cause the terrifying werewolf to pounce on them and tear them to pieces.

"Don't panic, students." Lupin turned around to show his body, "As you can see, I am a werewolf."

"Ah——" The students immediately burst into screams that could shatter the glass.

Blaise Zabini, who was closest to the door, wanted to run away, but Lupin, who was standing on the podium, was one step faster than him: "Imprison him quickly!"

Zabini's hand was unable to turn the handle and remained frozen there like a sculpture.

The big bad wolf on the podium waved his wand (after Lupin's transformation, his wand was so disproportionate to the werewolf's big hand that it was not much better than a toothpick), and the Zabini sculpture immediately returned to its seat.

The classroom was silent. No one had ever heard of a werewolf being able to use magic after transforming.

"Classmates!" Lupin's voice was low and hoarse in werewolf form, sounding very powerful. He raised his voice and immediately regained control of the situation. "I can assure you that the lycanthropy curse will not be passed on to anyone else from me! Even if you are bitten by me, you don't have to worry about turning into a werewolf. Besides, I still prefer chewier foods like beef and venison."

"Why should we believe you!" Theodore Nott shouted in a distorted voice.

"Because my attending physician is Mr. Doom." Lupin gave them an answer they couldn't refuse.

All the Slytherins present were silent. Within Slytherin, Ivy's words were usually more useful than those of the dean. And Theodore Nott had been repeatedly reminded by his uncle, the headmaster, to stay consistent with Ivy in school, no matter what the circumstances.

"We trust Ivy," Malfoy's face turned paler than ever, "not you!"

Ivy's warlock was much more straightforward. Cassandra stood up from her seat, walked steadily to the podium, and pulled a tuft of gray hair from Lupin's hairy arm to observe his reaction.

Seeing that Lupin didn't make any move, the blonde witch threw the gray hair away and returned to her sisters. Daphne Greengrass and Tracy Davis immediately surrounded her and chattered.

With the help of Ivy's reputation, the Slytherins, who were supposed to be more difficult to deal with, were the first to fall silent. Now Lupin had to face a group of little lions who were almost having a stress reaction - the worst of them was Neville, who looked like he was about to faint.

"You don't have to do this... Professor Lupin." Hermione shook her head reluctantly. She could imagine how much criticism Lupin would suffer in the days to come.

"Oh, Hermione." A creepy smile appeared on Lupin's wolf face. "I think you have a right to know. I don't feel comfortable lying to a bunch of children."

"Perhaps this is the last class I will teach you." Lupin's wolf face still played a steady deterrent role. "There is no homework for this class, but I hope you can think carefully about the relationship between wizards and werewolves, especially the relationship between werewolves like me."

After saying the last sentence, Lupin walked out of the classroom first with a wolf's head on his head.

(End of this chapter)