As Ginny asked, Mafalda's attention was focused on her for the first time. The two girls, one tall and one short, weighed each other.

Harry found that the two girls looked somewhat similar to Mrs. Weasley, and both had reddish hair, but they were also very different. Ginny's hair was like flames, which was the most recognizable among the seven children of the Weasley family, and she would not look at people with an aggressive look most of the time - but now was an exception. She was like a turkey about to be served on the Halloween table, with her hair standing up.

"I have met Aunt Molly, only once." Mafalda said, "But I met your father more often. He took me to Diagon Alley for a walk and bought some things in advance. He also gave me an owl. After I went back, I wrote to him. He replied frequently at first, but later he was slow."

"Maybe it's because he is very busy, or you ask too many questions." Ginny said word by word.

"Maybe, but I don't need him to take me with me. I can do it by myself." Mafalda said, "I persuaded mom and dad to allow me to go to Diagon Alley. How do you say it... get to know the wizarding world."

"I'm interested in everything in Diagon Alley. Old Tom in the Leaky Cauldron has lost all his teeth, but the food he cooks is delicious... When I asked about Madam Malkin's marital status, she kicked me out. I also persuaded the clerk at Flourish and Blotts to allow me to sit in the corner and read. My favorites are "Simple Spells to Fooling Muggles" and Gilderoy Lockhart's seven adventures. I picked a few spells from the former and used them on mom and dad, with good results. The latter taught me a lot..."

"Wait!" Harry felt that her speech was so ridiculous that he had to interrupt it, and he was not the only one who thought so. Ron, Hermione and Ginny shouted at the same time, and Mafalda stared at them. The scene was really funny, and everyone looked at each other for a while.

"Okay, tell me one by one." Hermione sighed. When this little girl came to her and said that she had important information about the Death Eaters, she knew that this was not a well-behaved student. Sure enough, they were all scared.

She looked at Mafalda and asked patiently, "Ms. Prewett, Mr. Weasley should have told your parents that the wizarding world is not peaceful now. How did you convince your parents to let you go to Diagon Alley alone?" She actually wanted to accuse Mafalda's parents of being irresponsible.

"They don't interact much," Mafalda pointed at herself and Ginny to indicate the parents of the two families, "My dad and Aunt Molly are relatives, but they may not have a good relationship. This can be seen from the stiff conversation between them-" "

That's exactly what I want to say." Ron interrupted, and everyone else looked at him. He swallowed and whispered, "Mom does have a distant cousin, but the family doesn't mention him much..."

"Dad is a Squib. His current job is accounting and he occasionally trades stocks. Mom is a Muggle. They have never been involved in the wizarding world before." Mafalda said, "Except me." She added.

"But-" Hermione struggled, "Even if that's the case, Mr. Weasley couldn't have failed to remind-"

"Oh, that's very simple. I told Mom and Dad-there's someone waiting for me behind the door of Diagon Alley, Bill Weasley. I know he works in Diagon Alley." Mafalda glanced at her with a smug look.

Hermione was shocked. Ginny made an angry cat-like cry.

"So you're lying?"

Mafalda shrugged, the answer was self-evident.

The abandoned classroom was silent for a while, and Harry asked: "You know Lockhart is a, a..." He hesitated.

"A liar?" Mafalda asked, Harry nodded, and she said calmly: "I like the way he tells stories, that's all."

The interrogation ended here. Even though Ron and Ginny didn't like Mafalda very much, they still pinched their noses to recognize this relative.

"What is the purpose of your coming here today?" Ginny asked stiffly with a straight face, "You should know that Gryffindor and Slytherin are sworn enemies. If someone finds out..."

"That's why I came here secretly." Mafalda said in surprise, while taking out a green notebook from her pocket - Harry could tell from some details that it was a product from the Muggle world - she turned a page, but did not show it to them. Instead, she held it in front of her and said, "I can provide you with information about Slytherin College, about the Death Eaters... but in exchange -"

"Death Eaters?" Harry, Ron and Ginny said in surprise.

The three looked at Hermione, who waved her hands quickly, "I don't know more than you, she - uh -" Hermione found the problem. What information could a little girl from a Muggle family, who knew nothing about the magical world before, know?

"Oh?" Mafalda looked at them strangely, "Do you understand very well? I continue - of course I won't work in vain, as a condition, you have to become the protagonist of my story."

Harry looked at her confusedly, what was going on.

"What in the story?"

"The protagonist of the story," Mafalda shook her finger at him, "Didn't I tell you that I like history and writing. You know Bathilda Bagshot, right?"

Harry nodded reluctantly. He knew this person, an outstanding historian. The textbooks in the History of Magic class were written by her. She lived in Godric's Hollow after retirement. Godric's Hollow... His heart tightened.

Mafalda didn't notice Harry's abnormality. She continued with the previous words: "Bathilda Bagshot wrote "History of Magic". There is a sentence in her that I particularly agree with. The happiest thing for a historian is to be able to talk to history itself."

"Do you know what this sentence means?" Hermione raised her eyebrows.

"What I am doing now is." Mafalda said.

Ron pondered and said slowly, "So you want to write us into your story? Um - you just said you like Lockhart's book?" He gave them a meaningful look, "Think about it."

"Harry won't agree to that!" Ginny said with raised eyebrows, she looked at Harry uncertainly, "Right?"

"Of course." Harry nodded decisively, he didn't want to have a follower behind him, the Creevey brothers were enough for him. He said to Mafalda firmly, "Sorry, I have a lot of things to do this year, OWLs exams, Quidditch, clubs... I don't have time to play house games with you."

Mafalda blinked, and just when Harry thought she was going to give up, she lowered her head and stared at the open notebook, reading out the names one by one: "Nott, Avery, Jugson, Selwyn, Crabbe, Goyle, Malfoy... Well, he's not sure, do you want me to continue reading?"

Harry opened his mouth wide, Ron's mouth was not much smaller than his, and Hermione looked at her in shock.

Mafalda stared at their faces and smiled.

"So they really are related to the Death Eaters?"

"How did you guess--" Harry said with difficulty. He heard these names from Voldemort himself in the graveyard. Each of them held a pivotal position in the wizarding world. But they were so humble in front of Voldemort that they had to kiss Voldemort's robes to be forgiven.

Sirius told him that because there was no evidence, the Ministry of Magic could not arrest anyone, and could only take surveillance measures at present. Of course, his original words were not like this. Sirius was as annoyed as Harry about this matter: "Amelia disagrees to arrest them and feed them two kilograms of truth serum..." After calming down, he himself admitted that this idea was unreliable, "Unless we intend to cause chaos in the wizarding world, or really do so, we must first arrest ourselves..." He said gloomily: "Pure blood is like this, without actual evidence, one can lead to a string of others."

Mafalda smiled like a fox, "The surname Prewett is unexpectedly intimidating, and it is not as eye-catching as Weasley. So, you see, I will be an excellent undercover, for... for a just cause, how about it?"

"I disagree." Harry said slowly.

"Why?" Mafalda asked in surprise. She never expected that she would be rejected after showing her ability.

"Harry, if there is a Slytherin student who is willing to help us, even if..." Ron said.

"No." Harry said, "No." He repeated, "What if she is discovered?"

"Don't worry," Mafalda interrupted, "From my observation over the past month, Slytherin House has become different from the rumors..."

"Do you know what you are doing? You are not just facing those bad students, but real Death Eaters! If a Slytherin student mentions you to his family and investigates you behind your back... will your cleverness still be useful?" Harry stared at her, with an unreasonable anger in his heart, "You are dragging your family into danger, and they don't even know magic."

Mafalda pointed at Hermione unconvinced, "As far as I know, her family background is no different from mine."

Hermione remained silent.

"Because she has no choice--" The blood in Harry's chest rushed to his face.

"I know you mean the Muggle identity -"

"More than that, but also because she is my friend." Harry said in a low voice, he looked at Mafalda breathlessly, "Yes, she is the friend of the famous Harry Potter, and Ron, he had no choice, since he stood on my side in the first year... I had no choice, I was forced to be associated with Voldemort when I was a baby, if nothing unexpected happens, one of us must die, or die together."

Mafalda's body suddenly froze.

"I didn't -"

"I don't know what you think of undercover, if it's just a prank, it's fine, but you are very capable, I can see. This is worse, I don't think you have ever thought that one day you will see a photo of your house in ruins in the newspaper, with a Dark Mark hanging on it?"

"I'm not - you're wrong!"

"Then tell me." Harry said, looking down at her eyes.

Mafalda stared back at him without giving in, her eyes flashing with water, "You wait!" She looked at them hatefully, turned and ran away.

Harry stared at her back, but what he thought of was the photo of Godric's Hollow he had read in an old newspaper. The photo showed a ruin, just like what Moody had told him... except for some white flowers and candles beside the ruins, which were left by some wizards who came here to see the ruins. "With deepest condolences..." The book said that when Harry saw these words, he felt that all this was meaningless, and his family would never come back.

Sometimes when Harry was lying in bed, he would think, if he could get the Resurrection Stone, even if the Resurrection Stone could not bring the dead back to life as Luna said, but only had the function in the story of the three brothers, so that he could see the souls of his relatives... instead of just a green light in his head and his mother's pleading voice...

"Harry, you'd better be careful, she doesn't look easy to deal with." Ron said, looking in the direction of the classroom door.

"I don't care." Harry said stiffly.

He suddenly thought of something. Luna believed in the Deathly Hallows, so was there someone she wanted to see urgently? She could also see the Thestrals.

"She looks quite clever," Ron said after a moment's hesitation, "We have also accepted other students to join the dueling study group. I believe they will not refuse to fight the Death Eaters--"

"She is only eleven years old." Harry said coldly, and Ron shut up. After a while, Harry belatedly asked, "She said that Slytherin House has become different... What's going on?"

Ron said unhappily, "The only person who knows has just been driven away by you. Why don't we go ask Malfoy?"

Harry was a little annoyed. He should have asked first.

...

At night, Felix continued to do his promising work as a bounty hunter. Except for the first time he entered the Hog's Head Inn and had some unpleasantness with the owner of the bar, he just stood at the door wearing a black cold-proof cloak. Not long after, the target would 'walk' out by himself.

Hogsmeade has recently added a legend of a powerful ghost.

Of course, because the missing people are all dark wizards, and they are the worst group, there are not many people who really care about them-these people are hiding their heads and showing their tails, and they may have left suddenly because of urgent matters.

Some wizards swore that they had seen a ghost with extremely strong magic power. Just by waving his hand, he could take away people's souls.

"He is the incarnation of the god of death." said an old wizard who was obsessed with horror stories.

His performance attracted applause, and the old wizard also won himself a glass of hot whiskey. The male waiter at the Hog's Head Bar snorted disdainfully and continued to wipe the goblet with a dirty rag.

Felix occasionally took time to visit the unfinished site.

In a vacant lot in the center of Hogsmeade Village, a large amount of building materials were piled up. Black and white marbles were arranged in a staggered manner, and there were mysterious star patterns on them. Felix stood in the center of the star with interest and looked around. The entire wizard village was shrouded in the deep night, with only a few sparse stars.

Felix stared into the darkness, where there was a faint sound approaching, like footsteps, but too light.

From the perspective of the Thestral, the body of the unknown creature appeared very blurry, even in the darkness. He could only see a circle of blurry light, vaguely piecing together the appearance of a thin house-elf.

This was another pair of eyes different from the normal perspective and the magical perspective. If he had to give a definition, he seemed to be able to see the soul glowing.

"Hello, Mr. Hep, Bondy sends his regards."

The house-elf said in a sharp voice, stopped far away and bowed to Felix. Then he looked up at Felix's silver-gray eyes and shuddered involuntarily. These eyes made him feel afraid.

"What's the matter, Bundy?" "

Mr. Happ, Bundy brought you a letter. I'm so sorry that Bundy can't enter Hogwarts School of Witchcraft and Wizardry," the house-elf bowed deeply again while speaking, "Bundy, Bundy has been waiting nearby for a few days and finally met you."

Felix always felt that this scene was a little familiar, but the last time it was a child who delivered the letter, and it was also a letter from Voldemort inviting him to fight. He took the letter. There was a triangular pattern on the envelope: inside it was a circle and a vertical line. He stared at the pattern for a few seconds, and his mind became more suspicious, "Nurmengarde?"

The house-elf bent his body even lower.

Felix opened the letter without any magic attached. On it was a simple line of words: "You are lying. The Elder Wand does not belong to you."

Felix smiled. "Although the Elder Wand does not belong to me, it does not belong to you either, Mr. Dark Lord." He tentatively asked the house elf Bundy: "Can I meet Mr. Grindelwald?"

"He has no plans to meet for the time being." Bundy said respectfully.

Felix smacked his lips. It seems that Gellert Grindelwald is still imprisoned and cannot come out, but at least he can contact the outside world. He also wrote a letter to accuse him...

Is this the end of the first generation of the Dark Lord?

Dumbledore is still too kind. Felix thinks he will not let Voldemort have the opportunity to enjoy the same treatment.

He wrote a short reply, his tone full of regret (or sarcasm?) for not being able to meet him, and gave it to the house-elf along with a few books taken out of the ring, "Please pass it to Mr. Grindelwald for me, so that he can uh... pass the time. If he is interested, we can communicate through letters in the future."

He handed the house-elf another copper Knut, "You can contact me through this."

When the house-elf Bundy disappeared, Felix began to look forward to it. What would be the magic path of this Dark Lord? What kind of demeanor would he have?

After staying there for a while, he began to worry whether the wording of his reply was too sarcastic. What if the Dark Lord was a petty person? He laughed at this idea and turned away.

...

The last two weeks of October were full of storms and rain. Near the end, a chilly cold rain caused the temperature to drop sharply, and the young wizards changed into thick clothes to resist the knife-like cold wind.

Many students wore gloves even during breaks, but their minds were becoming more active: Halloween, the first Quidditch match, and the Ancient Runes Exchange activities would be intensively held in the next week.

As Halloween approached, the castle was once again hung with colorful decorations, and the atmosphere in the school was cleared.

Finally, October 27th arrived.