This year is the sixth year of coming to this world, and next year will be the seventh year.

When the semester ends next year, the tricky Rubik's Cube will be activated again soon.

Kewen counted his gains from coming to this world, and even relied on his self-created 'Golden Finger' to recall everything he had since he came to this world.

Gained a lot.

More than that knowledge, Kewen has also gained friendship in this world, the care of professors for him, and of course, the affection of his grandfather and grandson Ollivander for him.

No matter what, Kewen will feel a little reluctant to part with this world and those people.

But no matter how reluctant he is, he will continue to walk. He must follow the mechanism of the Rubik's Cube and continue to travel through three different magical worlds.

I can only pray that after returning to reality, my father's research institute can thoroughly study the Rubik's Cube, so that he can come back here again to take a look...

A week later, the house-elf Lili brought back an invitation from the academy.

The invitation letter is very beautifully made, and the letter is sealed with fire lacquer with the family emblem pattern.

Kewen opened the envelope, and while reading the letter, he also noticed something, this invitation letter was actually a temporary 'door key'.

It can be activated at a specific time to teleport people to a fixed location.

I have to sigh that the ancient families in the wizarding world each have some unique magic.

Just pack up and prepare some gifts according to the rules of the wizarding world.

When the time was up, Kewen held the hand of Lili, the house elf, and was instantly sent away by the 'door key'.

When he reappeared, he was already on a street.

Kewen looked around and found many familiar high-rise buildings. It was not very far from King's Cross Station.

"Welcome! Welcome!"

Before Kewen could check more, Sirius had already appeared from behind a black wooden door and greeted him with a smile on his face.

Then, Sirius Black explained: "I'm sorry that I can only invite you by 'invitation letter', because my family has been cursed, except for a few people, other people need to get an invitation letter to see House."

"Good afternoon, Mr. Black, I can understand. After all, the 'secrecy spell' imposed on my family is more troublesome than yours."

As Kewen stepped forward, he responded with a smile, and then pointed to the gift box in Lili's hand: "I brought two bottles of wine here, why don't you try it together."

"Of course!" Sirius looked at the gift box in Li Li's hand subconsciously, and then smiled: "You are so thoughtful, I did forget to prepare wine, come in quickly."

Followed Sirius into the house, into a narrow corridor that was somewhat gloomy.

The walls on both sides of the corridor were covered with wallpaper, and the mottled wallpaper peeled off a lot.

There are also some picture frames that have become dark with age, but many are covered by black cloth.

Stepping on the worn carpet under his feet, walking down the corridor and reaching the stairs at the end of the corridor, Sirius turned around and led Kewen down to the basement.

The basement is a long and narrow room, only a long wooden dining table is placed in it, and no other furniture can be placed.

"Please sit down."

Sirius pulled a chair under the long table for Cowen and greeted him warmly.

Kewen sat down politely, while Lili was wearing a beautifully crafted maid's dress and quietly waited beside him.

Sirius couldn't help but glance at Li Li, he had never seen such a delicately dressed house elf.

In his cognition, the elf should be wearing a rag-like thin shirt casually.

Kewen noticed the other party's gaze, so he explained with a smile: "There are many people in the outside world who have bad intentions towards my property, so Lili will provide protection when I go out."

Sirius expressed his understanding, and was about to continue to say something when a footstep sounded suddenly from upstairs, and soon, Harry's figure appeared.

"Hello, Director of Science and Literature."

Harry obviously didn't know that Cowen had arrived, so he was stunned for a while before hurriedly saying hello.

"Hello, Mr Potter."

Kewen responded to the other party, but seeing that Harry also turned his attention to Lili, he had to introduce again: "This is my house elf, her name is Lili."

"Hello Lili."

Harry's greeting to the elf was obviously more natural than his greeting to Cowen.

"Hello, Mr. Potter." Lili responded lukewarmly, then continued her reserved look.

"It happens to be Harry." Sirius greeted Harry: "You accompany Kewen first, and I will go to the kitchen to urge him."

"No problem." Harry nodded in response, stepped forward and pulled out a chair to sit opposite Kewen.

Sirius informed Cowen, then turned and entered the room at the end, which was obviously the kitchen.

Without Sirius present, although Harry promised happily just now, he didn't know what to say for a while now.

Cowen saw the embarrassment of the other party, so he smiled, took the initiative to find some topics about college life, and chatted with Harry.

About ten minutes later, Sirius appeared again, holding a huge silver tray in his hand, and quickly came to the dining table.

"Sorry." Sirius said apologetically as he placed the tray, "I kept you waiting."

After speaking, he turned his head and shouted to the kitchen: "Hurry up, Kreacher! Don't keep the guests waiting!"

Soon, a house elf dressed in 'normal' appeared, using a spell to instruct two large trays to float in the air, and brought them all the way to the dining table.

When he came to the vicinity, the elf named Kreacher glanced at Kewen and Lili, and then muttered in a low voice: "Unfilial master, why do you bring everyone into the house..."

Kewen heard it clearly, and couldn't help but be slightly taken aback.

Li Li, who was waiting beside her, also heard the other party's muttering, her ears instantly became hard and erect, she quickly turned her head and stared at Kreacher, her eyes were very bad.

"Kreacher!" Of course, Sirius heard it too. Feeling embarrassed, he immediately reprimanded: "Kewen is my guest! How dare you be so rude!"

Kreacher shrank back after being reprimanded, but still unrepentant, lowered his head and muttered more quietly: "If I can walk with the master, what good things can I have..."

"You dirty old goblin!"

This time, without waiting for Sirius to speak, Lili next to Kewen suddenly froze.

After cursing sharply in her voice, Lili suddenly bypassed Kewen and pounced on Kreacher.

He raised his thin arm and punched Kreacher in the face, knocking him down.

Before it was over, Lili stepped forward and rode on Kreacher's body again, and two small fists kept falling, hitting the opponent's raised arm to defend.

While smashing, Lili screamed: "You damn old goblin! How dare you speak ill of Lili's master! Lili beat you to death! Kill you!"

The sudden change made the three of Kewen stunned.

Kewen was the first to regain his senses, and hurriedly stopped: "Lili, stop, stop bullying him."

"But how dare he say that to you, Master!"

Although Lili stopped obediently, she didn't stand up from Kreacher's body, and she didn't look angry.

"Okay, it's okay, darling." Kewen shook his head slightly and said again.

"Yes." Lili finally obeyed the order, turned her head and stared at Kreacher on the ground, stood up, and returned to Kewen's side.

"This... I'm sorry!" Sirius finally regained his senses at this time. After apologizing to Kewen, he turned his head and scolded Kreacher fiercely: "From now on, shut up your stinky mouth for me! Go back to the kitchen! No! You are allowed to appear in front of the distinguished guests again!"

"Yes." Kreacher slowly got up in a cold voice, then walked towards the kitchen with his head down.

But on the way to the kitchen, Kreacher's mouth was still silently opening and closing, and he didn't know what to say there.

Until Kreacher's figure disappeared, Sirius covered his forehead with some high blood pressure, and then apologized to Kewen again: "I'm sorry Kewen, this house elf is a complete lunatic, embarrassing you, I am really very sorry. Feel sorry!"

"It doesn't matter, I don't care." Kewen smiled and shook his head indifferently. After all, when it comes to embarrassment, Sirius is the one who is the most embarrassed and loses face the most.

Being disturbed by Kreacher like this, the originally good atmosphere could no longer be maintained, and the chat atmosphere that followed was not very enthusiastic.

Sirius seemed a little reluctant to finish the meal, and then went upstairs to get two books down.

Handing over the book to Kewen, Sirius smiled a little forcefully: "Here, in these two books, there are two aspects of the magic spell for making the Marauder's Map."

"Thank you, I will return it to you as soon as possible." Kewen stretched out his hand to take the book and said happily.

"No, no need." Sirius waved his hand: "I'll give them to you, I don't need them anyway."

"Is this appropriate?" Cowan glanced at Harry, who was beside him, and then asked, "I mean, it should be a family curse."

"Don't worry about it." Sirius understood Kewen's meaning, and then explained with a smile: "There are some copies in the study."

"That's good." Kewen nodded and said while stuffing the book into the 'Wuhen stretch pocket', "Then I'll be ashamed."

Seeing Kewen accept the book, the guilt on Sirius' face finally eased.

After chatting for a while, because of the limited atmosphere, Kewen didn't plan to stay any longer, so he bid farewell.

Sirius did not continue to retain, but sincerely apologized to Cowen again, and then sent Cowen out of the door together with Harry.

After leaving, Kewen held Lili's little hand, and in the next instant, Lili teleported away with Kewen.

Seeing this, the smile on Sirius' face suddenly disappeared.

Let Harry go upstairs first, and then Sirius rushed into the kitchen with a furious face...

the other side.

Lili and Kewen used a long-distance 'Apparation' to return to the door of the 'Wonderful House'.

After entering the room, Kewen immediately took out the two newly obtained books and read them eagerly...