A certain Hogwarts professor of runes.

"what?"

"I'm asking how much this thing costs. Of course, I want it fixed, and preferably with some weird magic to make it more interesting. I can come up with some ideas, and we can do it together."

"You're planning to give him away?" Felix stared at Sirius Black, a smile spreading across his face. "To Harry?"

"Six months... I don't know how things will have changed by then, maybe I'll still be hiding," Sirius avoided his gaze. "I may not be a good godfather, but I still have to do something. Like Firebolt, I thought, even if I can't be by his side, at least—"

"Did you send the fire bolts?" Felix asked in surprise.

“It was me, Crookshanks, who helped a lot by mailing it via owls,” Sirius explained.

After thinking for a moment, Felix agreed: "No problem. Okay, come over here, I need your experience—" He pointed to the Marauder's Map, "I plan to cast an alarm spell on it, which will alert if a specific person enters the map area."

He actually had some other plans, but the alarm spell was the most convenient and had the highest success rate. Now that he had captured Peter Pettigrew, he had plenty of time to test his ideas.

“That’s a good idea!” Sirius was indeed intrigued. “We can’t keep an eye on the map all the time. What if he sneaks in in the middle of the night? Although we could give it to Kreacher,” he said maliciously, “he’s completely out of his mind. He’s gotten too many crazy ideas from my mother’s portrait…”

"Is the cleaning not going well?"

Sirius hummed twice, "How strange, isn't it? I always felt that Kreacher was the real owner of the house, just as rotten, decaying, and stubborn..."

"But I digress. Let's get back to the alarm spell. There's a problem right now..."

Sirius looked at him, and Felix said, "You've added quite a few spells. Over time, these magical powers have intertwined and merged with each other, making it difficult for me to intervene further. I'm worried that I might damage the original structure and turn it to ashes."

“I can provide the method for creating a Marauder’s Map,” Sirius Black immediately said.

“It’s not that simple. I’m more interested in the order in which you cast the spells,” Felix said.

Sirius thought about it carefully for a while, then slowly said, "I can only recall part of it. The Dementors had a great influence on me. You'd better ask Remus; he's more meticulous."

Chapter 290 The Nameless Book

Memory is a very strange thing. If the master himself has forgotten, then there is very little Felix can do.

This is different from the Longbottoms' situation—he wasn't looking for a specific treasure, but rather piecing together as many memories as possible, not fixated on a particular day or event, since in his view, they were all just bricks in the edifice of his mind.

With Lupin's involvement, Felix's analysis of the Marauder's Map is on track. In a few days, he'll be able to add the Alarm Charm.

……

Gryffindor Common Room.

In a secluded corner, Harry, Ron, and Hermione sat around a small round table.

“Give it a try, Harry,” Ron urged. “Let’s see what the Ghost Book is like.”

“It’s an unnamed book,” Hermione corrected habitually, her eyes fixed on the table where a transparent book with a bluish-white glow was located.

Don't you think the name "Ghost Book" would be more appropriate?

Harry glanced at the two of them, a sudden tightness gripping his heart. He reached out and opened the nameless book. Professor Hyp's figure was half-hidden in a light blue mist. He took a deep breath and pressed his palm onto the pages.

Ron and Hermione noticed that Harry had suddenly become motionless, his expression frozen. Ron reached out his hand. "Don't move!" Hermione said, remembering the function of the Mind Chamber. "Harry's consciousness might have entered this book."

Ron stared at Hermione, then at the book on the table, speechless. "Is there Harry's consciousness in this?" He held his breath, leaned down to examine it, and tried to find something on the pages. Sure enough, he saw a small, blurry Harry.

"Merlin's socks!"

Ron glanced around with a hint of alarm, while Hermione's gaze remained fixed on the pages of the book. "Don't be so alarmed, Harry's fine."

“What if someone touches Harry and makes him move his hand away? Won’t he be trapped inside the book?” Ron suggested earnestly. “Should we help hold his hand down?”

Hermione hesitated for a moment, "I don't think it could be that dangerous..." Half a minute later, she was successfully persuaded. She and Ron reached out their hands, one on each side, and placed them on Harry's hands.

The next second, the world spun around—

"Aaaaah!" Ron screamed, feeling as if he had fallen into a long tunnel, being tossed about helplessly. He couldn't help but recall the scene of jumping into the secret tunnel last year.

"Please, stop calling me that, Ron."

Hermione said, "Ron opened his eyes and slowly got up from the ground. Where is this?"

The sky, along with the ground beneath his feet, had an unreal, illusory quality, as if it were formed from condensed light blue smoke. He stomped his foot, and a cloud of mist exploded on the ground, causing him to stumble.

"I think this is a world from a book, look over there!"

Hermione pointed in the opposite direction from Ron, who turned around and, sure enough, saw Harry and Professor Hyp.

Not far away, Harry was staring at them in disbelief. He jogged over and asked, "What are you doing here? No, you were allowed in here too?"

“We noticed you suddenly stopped moving and wanted to help you… uh, maybe we were overthinking it.” Ron excitedly looked around: “Looks like the professor didn’t refuse anyone else entry. This place is huge…”

“I asked the same question,” Harry said. “The professor’s answer was that space has no meaning in the world of thought.”

"follow me!"

Ron and Hermione followed Harry to where they had been. Professor Hyp, seemingly oblivious to what had happened, continued his unhurried narration.

"...We've finished discussing goals and determination; now it's time to remain calm. When using Apparition, never be tense or fearful. In other words, don't get distracted. Distraction is the primary cause of failed movement or even separation; it affects your focus on the goal and the strength of your resolve..."

Harry paused for a moment. "I missed the second point... but it's okay, I can study it again."

"That's so cool! Is all of this just fiction?" Ron exclaimed. He tentatively reached out and passed his arm through the professor's illusory body. "It's so real..."

"Crack!"

"Ouch!"

The pale blue mist in mid-air condensed into a bolt of lightning, which struck Ron and knocked him over, causing his hair to stand on end.

“I think,” Harry said, suppressing a laugh as he pulled Ron up, “the professor doesn’t like people getting too close to him.”

Ron glanced guiltily at Professor Heap, who had stopped, and muttered, "Ron Weasley, this is the last time."

Ron's eyes widened: "He, he, he..."

Hermione examined it for a while, then hesitated and said, "It should be a fixed procedure, like the professor's magical puppets, with a certain degree of autonomy. But it's hard to say whether the professor will know when Harry returns the book."

Ron said with a pained expression, "I was really just curious."

Professor Hepburn, who was standing nearby, finished explaining this part of the content while they were talking.

"...We've covered the most basic knowledge. The first test is for you to repeat what we just discussed. It's actually very simple; you won't make any mistakes if you have even a basic understanding of it."

Harry hesitated for a long time; he had indeed looked at some materials beforehand.

“Um, let me think… To learn Apparition, you need to follow the 3D principle, which is goal, determination, and composure. First, we need to focus our awareness on the place we want to go, that is, the goal; we must know it well enough, which could be a place you have been before, or within your field of vision…”

Harry ran his fingers through his hair. “Then there’s determination—I didn’t quite catch that, but… I read in the books that you need a strong urge to use Apparition, to fill your whole body with that urge and then channel your magic.”

"Finally, be calm. The book says to spin around in place, but you didn't mention that, Professor. I don't think you really need to spin... Ahem! Anyway, imagine your body becoming nothingness and don't get distracted by anything else."

After Harry finished speaking, he looked at Professor Hyp expectantly.

Professor Hyp smiled approvingly at him: "Very good, Harry."

Harry couldn't help but be amazed. Was this professor really just a memory? He was even able to retaliate against Ron's actions, and even though Hermione said it was pre-programmed, he remained deeply skeptical.

"So, next—"

"Wait, Professor, can they learn it?"

"Them?" Professor Hyp looked at Ron and Hermione. "Would you like to give it a try?"

"Is that alright, Professor?" Hermione asked with delight.

"When I was leaving my memories, I considered that Harry might let you study together. However, Harry's progress should be the priority. You cannot skip over him or help him pass the levels."

Ron hesitated. "How about Hermione gives it a try? I'm not even familiar with the spells we learned in dueling class yet."

“It’s okay, Ron, we have many more chances,” Harry encouraged him.

After more than ten minutes, they completed this step. Ron listened twice before he could repeat it clearly. When Professor Hyp nodded to him, he breathed a long sigh of relief.

“I’m even more attentive than in class, really!” Ron said, not wanting to hold Harry back or delay his studies.

“Next, the second challenge,” Professor Hyp said, following his preordained memory. “You should like it: Followers manifest.”

"Appearance of a follower?" Harry heard a new term.

"Apparition can be done with someone else in tow; the person being moved is called a follower. This method of movement is called Follower Apparition. During the war, the Ministry of Magic recommended that every child learn Follower Apparition. It's actually quite simple; as long as you don't shout or suddenly unleash magical attacks, you can basically succeed."

Harry nodded and asked, "Do I need to repeat this? Is this the second challenge?"

“No, Harry.” Professor Hyp gave a bright smile. “That was just background information. The real test is adapting to the discomfort of having your follower appear.”

“I believe that once you get used to it, you will have a more realistic understanding of the Apparition spell.”

He looked at the three of them, "Since you all want to learn, well... let's just do it randomly."

His figure vanished abruptly, reappearing before Ron. Ron slowly opened his mouth, his eyes bulging, as Professor Hyp's hand rapidly enlarged before his eyes...

The next second, their bodies twisted and disappeared.

"Professor?" Harry whispered, looking around at the faint blue mist that surrounded him.

Hermione said, "The professor must have been showing Ron what it's like to have a minion appear."

"Experience?"

“After all, it’s all fake, a world constructed by the mind. You can’t manipulate magic to form facts or habits,” Hermione said with experience.

Two or three minutes later, "Ahhh—" Professor Hyp appeared in the air with Ron.

Ron was panting, his eyes still filled with fear. It took him a long time to come to his senses. "I felt like I was being squeezed out of a rubber tube, and I could be compressed into a walnut at any moment..."

But after a short while, he urged Harry and Hermione to try it, saying, "It's an unforgettable experience, and you definitely won't want to miss it."

Professor Hep stepped forward at the opportune moment, smiling, and asked, "Who's next?"

Harry and Hermione both stepped back; the professor's smile was truly terrifying.

Chapter 291 Admonition

Harry finally understood the feeling Ron had described as "squeezing out of a rubber tube." He felt that the description was somewhat of an understatement. Pressure surged from all directions, his eardrums issued a strong warning, and his chest felt as if it were encased in several iron hoops, making it impossible to breathe.

In real life, his clothes would be soaked with sweat.

Not only Harry, but Ron and Hermione also couldn't take it anymore. They persisted for two more times before deciding to give up. Harry asked, "What if we can't adapt and we're stuck at this level forever?"

“If you can’t even adapt to the manifestation of your followers, let alone keep your focus and manage your magic,” Professor Hyp advised. “You are still young, there’s no need to rush.”

Public lounge.