12 Grimmauld Place.

From the street, it was a black wooden door covered in scratches, with no keyhole in the door hole and a thick layer of dust covering the window.

An old, dirty-looking house that is the ancestral home of the Sirius Black family and the headquarters of the Order of the Phoenix.

Of course, this secret is only known to a very small number of people.

The living room on the second floor, which has a large window overlooking the street in front of the house, has a chic fireplace that warms up the whole room.

Lu Li held a thick magic book in his hand, and he sat on the sofa by the window.

The location was much more well-lit and didn't affect his reading experience in the dark room in the slightest.

After the events of the Department of Mysteries, Dumbledore introduced him to the members of the secret organization at a meeting of the Order of the Phoenix.

With the exception of Professor Snape, who had a poker face, all the members gave him a warm welcome.

Especially the Ron family, they felt that if Lu didn't leave him, I'm afraid the Weasleys would be a single-parent family by now.

The members of the Order of the Phoenix are a group of people who are resilient and worthy of entrusting their lives.

After a short period of contact, Lu Li also has a good impression of these people.

When Christmas approaches, the young wizards of Hogwarts have a period of vacation.

At the strong invitation of Harry and several others, Lu Li also arrived here from Hogwarts to spend this grand and solemn festival with them.

"What are you looking at?" Hermione asked curiously as she walked down the stairs with the blessed Crook Hill in her arms.

"Poison Magic, taken from Professor Dumbledore's office." Lu Li raised the cover of the magic book at her and said calmly.

This guy of mysterious origin has always had a keen interest in magic books, especially black magic.

"You're going to be a good dark wizard." Hermione suppressed the curiosity in her heart and said sincerely.

Listening to the name, you know that it is probably another forbidden book about black magic.

I don't know if Professor Dumbledore is old, so why he borrows all kinds of books.

"There doesn't seem to be anything wrong with being a cute and charming villain." Lu Li said with a slight smile.

"Have you received all the Christmas presents?"

Hermione cleverly shifted the subject and put down the cat in her hand and let it roam freely.

"Of course, thank you for the gift." Lu Li nodded.

"What did Luna give you?"

Hermione leaned closer, glanced at the passages in the book, and asked in a low voice.

Gossip is indeed the fourth instinct of human beings, and even this beautiful wizard is no exception.

Delivering to Luna was a stupid owl that had been planted on the glass last night, and his fat body had nearly smashed the glass window of the old mansion.

"A pair of demon-proof glasses." Lu Li didn't mean to hide it, and said calmly.

That clever blonde witch always likes to do weird things sometimes.

Speaking of which, he really received a lot of gifts this Christmas.

Dumbledore sent a delicious lemon ice cream, Harry gave him a brand new broomstick, Hermione presented an interesting magic book, and Ron sent a set of magic robes on behalf of the Weasleys.

Of course, there are such things as gifts.

Lu Li also gave out a lot of gifts, which in his opinion were just insignificant gadgets, but from the wizard's point of view, they were all relatively rare things.

"This gift is so cool."

Ron brandished a small knife in the hallway, and it seemed that he liked the gift.

"It's too dangerous, put it away, Ron."

Mrs. Weasley screamed and screamed, trying to stop her son's stupidity.

Mrs. Weasley was like an iron tower when she was angry, and when she got angry, she always made her sons tremble.

Ron sat down on the sofa obediently, but he still couldn't put down the gift, and he still played with it carefully.

"What gift did you give Luna?" Hermione glanced at Ron, ignoring his actions, still inquiring curiously.

"Hermione, it's not a good habit to get into other people's secrets, although Harry and I are both interested in it."

A tall, handsome-looking middle-aged man walked in from outside the house and said with a playful smile.

Next to him stood the young Mr. Savior.

"Slytherin's locket found?" Lu Li looked at Sirius, who was in good shape, and asked rhetorically.

Regulus Black, who is said to have been the first to discover the secret of Voldemort's immortality.

He also traded his life for a Horcrux, the Slytherin Locket.

But in the end, he chose to die in obscurity, unwilling to involve his family.

Even fifteen years after his death, he was still not vindicated, and Sirius Black did not know until his death that he had a kind and brave brother.

Just two days ago, Lu Li happened to meet Sirius and Harry talking about the past in front of the family tree, and he took the opportunity to confess the truth about Regulus's death.

In order to verify the truth of the matter, Sirius pointed his wand at the house-elf Kreacher, and brutally forced it to tell the secret that had been hidden for years.

Everything is really as Lu Li said.

Sirius stumbled away and disappeared all night, and no one knew where he had gone or what he had done during that time.

When he returned, his handsome face was full of haggard and remorse, but his mental state was much better than before.

It seems that Sirius figured it out and turned his grief into strength to fight Voldemort.

"I found it, I owe you a favor for this matter."

Sirius took out the snake-shaped locket from his pocket and said in a sincere tone.

As Dumbledore had said, the mysterious young man was forever shrouded in a fog that was impossible to see, but he came with good intentions.

"Just think of it as the accommodation fee I've been here for the past few days, and besides, I haven't prepared a gift for you."

Lu Li's gaze returned to the thick magic book in his hand, he was not too interested in the historical relics left by the founder.

"You've given me the best gift you've ever given, my friend." Sirius said gratefully.

"What do we do next? I mean, as members of the Order of the Phoenix, we have to take action against Voldemort. Harry walked to the center of the living room and said excitedly to the others.

Due to Lu Li's involvement, Dumbledore didn't hide much from Harry.

The founding and membership of the Order of the Phoenix, the secret of Voldemort's immortality, and the Horcrux Nagini captured by the Department of Mysteries, all of these things Harry now knows.

Of course, apart from the fact that Harry himself was one of Voldemort's Horcruxes.

"Mr. Savior, in my opinion, you better go and practice the Occlumency Technique first." Lu Li said without raising his head, and at the same time poured a basin of cold water on Harry's head.

"I think he has a point." Sirius also echoed with a serious expression.

Looking at Harry's pleading gaze, Sirius, as the godfather, strongly agreed with Lu Li's point of view at this moment.