Hogwarts: I act like a boss in front of Hermione

"It's okay. We have Kreacher at home. Even if the Ministry of Magic detects magic fluctuations on my side, they will think it is a house elf casting magic."

Looking at Hermione who was very nervous as she pushed the door open, Noel put the last book in the bookshelf and explained to her with a smile.

"Isn't it the school's rule?"

Hermione frowned. She didn't know how this had anything to do with the Ministry of Magic, but Noel's explanation made him feel relieved.

"The school's notice was sent to us on behalf of the Ministry of Magic. To be precise, it was a warning sent to us by the Office for the Prohibition of Abuse of Magic in the Ministry of Magic."

Noel took Hermione's little hand and led her to the sofa in the study. Hermione took off her shoes without any concern for appearance and curled up with her legs on the sofa. This was the first time she heard that it was the Ministry of Magic who warned them not to abuse magic. With curious eyes, she motioned for Noel to explain to her in detail why he ignored the Ministry of Magic's warning.

"I just said that they would think it was Kreacher who cast the magic. It's because the Ministry of Magic's detection system is so backward that it can't detect who used the magic at all. Even if I keep using magic now, they will think that Gerry It was Kreacher, not me, who used magic in the apartment at 12 Place Mor.

After all, I am the recipient of the third-level Order of Merlin, so they will not doubt me. This is the benefit of a good reputation. "

"Really? This should be a Ministry of Magic secret."

Hermione didn't quite believe Noel's explanation. As the most authoritative institution in the wizarding world, is the Ministry of Magic's detection system really so bad?

"As the greatest wizard in the future, how could I lie to you! And the most important thing is that I have expelled the traces from my body. So the Ministry of Magic cannot detect me."

Noel cracked and expelled the Trace Silk a long time ago, but it was so long ago that Noel really forgot about it at first.

"What is trace silk?"

Suddenly hearing an unfamiliar word, Hermione became extremely curious.

"The Trace Silk is part of the detection system of the Ministry of Magic that I just mentioned. After we entered Hogwarts, the Ministry of Magic, with the cooperation of Hogwarts School, used the Sorting Hat to put the Sorting Hat on our bodies during the sorting ceremony. An alchemical item placed in it that detects whether you use magic.

However, this trace silk has a fatal flaw. It can only detect magic within ten meters of it, and cannot tell who used the magic. "

After Noel handed Hermione the milk tea brought by Kreacher, he began to explain to her what traces were.

"Ah, why do they do this? And if it can't tell who is using the magic, wouldn't it mean that when I am walking on the road and suddenly a wizard or elf casts magic next to me, there will be a high probability that the Ministry of Magic will Send me a warning letter?”

Hermione's eyes widened. She was worthy of being the IQ leader in the three-person team. She immediately thought of the shortcomings of Trace Silk. This Trace Silk was too deceiving.

"Of course, it is to prevent young wizards from using magic randomly and causing unnecessary trouble. Your guess just now is correct. Just as you saw me casting magic just now, the Ministry of Magic has now received the news that you are casting magic around you.

But they didn't send you a warning letter because they would still think it was cast by my house elf. "

"Ah That's good."

Hermione finally breathed a sigh of relief. She didn't want to become the 'unlucky one' for no reason. But then she discovered another problem.

"You said you got rid of the traces in your body, so the Ministry of Magic didn't find out?"

"Don't worry. The traces have been removed from my body for more than half a year, and the Ministry of Magic has not found it yet. If you also want to get rid of the traces, I can help you now."

"Really? Then help me get rid of the traces in my body. As long as it's gone, I can practice magic spells as unscrupulously as I did last summer."

After Hermione heard that it could expel traces of traces from her body, she happily drank milk tea. In the past month, she couldn't practice spells and could only read books dryly, which almost drove her crazy.

"Then I'll start now."

"Right now? Don't you need to make some preparations? For example..."

"No need, just here."

"Well, slow down, don't get caught."

……

"I'm just worried about you being punished by school."

After Noel and Hermione solved the hidden danger of Trace, the two looked at each other. Looking into Noel's eyes, Hermione couldn't help but explain.

"I understand, this is your concern for me. You are the only one in this room who cares about me like this."

"Hmph! Apart from you, I am the only one in your family now. Are you hiding other people?"

Hermione rolled her eyes at Noel, and she suddenly thought that she seemed to have forgotten something, oh! God, it seemed like I was here to hear him tell that secret.

Hermione, who suddenly reacted, stared at Noel in annoyance.

"What was the secret you wanted to tell me yesterday?"

"Haha, I thought you came here so early to drink milk tea."

Noel looked at Hermione with a bulging face and couldn't help teasing her.

"Hmph╭(╯^╰)╮, I'll leave if you don't tell me!"

"Okay, let me tell you. Don't you really like watching Doctor Who? I have a treasure that's like a time machine, the TARDIS."

Hermione's favorite "Doctor Who" tells the adventure story of a Time Lord who calls himself "Doctor" and his partner use the time machine TARDIS to travel through time and space to punish evil and promote good, save civilization, etc.

The TV series is listed in the Guinness Book of World Records as "the world's longest science fiction television series."

After dinner at Hermione's house yesterday, Noel watched the replay of the 1989 version with Hermione.

……

"What! You have a treasure like the TARDIS? Can it take us to other planets? Does the Ministry of Magic know about it? It can't be contraband, right?"

Hearing Noel say that she had a treasure that traveled through time and space, Hermione stood up excitedly. She couldn't restrain her inner excitement and loudly confirmed to Noel in disbelief.

Fortunately, Noel's study has been filled with shielding spells. Otherwise, with Hermione's high voice, all the Muggles on the street would know Noel's secret.

"Okay, sit down. I'll explain it to you slowly."

"First of all, it's called the Key to the Realm. Its function is similar to that of the TARDIS. It can take us to different worlds, but it cannot be used at will like the TARDIS. The Key to the Realm can only be used once a month. Don't underestimate it because the conditions for its use are very harsh. It also has a very big advantage, that is, the time is not synchronized. When you stay in another world for a year, only two hours have passed here.

The most important thing, so far, only you and I know it. "