The fireplace in the student council president's office was lit and crackled to drive away the cold air in the room, and Lawrence and Selwyn sat in their armchairs by the fireplace, and on the small round table in front of them lay some mistletoe branches, which might have been unfinished Christmas decorations.

Selwyn waved her hand impatiently, and two empty glasses and a bottle of wine flew out of Selwyn's office cabinet, sweeping the mistletoe on the small round table aside, she flicked her fingers, picked the wine bottle stopper, and then poured the light brown liquid into the glass,

"Plums?" Lawrence asked casually as he looked at the wine glass that slid towards him,

"Black plum wine." Selwyn replied, she shook the glass in her hand, and then took a sip of the wine, Lawrence raised an eyebrow and nodded thoughtfully, his sitting posture straightened a little,

"I can tell you who attacked you that day," Selwyn began, "but I still say that—profit."

"I promise that everything I say is true," Selwyn said, "then you need to pay for my benefit."

"What if I can't afford what you want?" Lawrence asked,

"Then in return for helping me with those student council affairs, I'll tell you what that sentence means."

"'For the good of eternity'?"

"yes." Selwyn looked like he was smiling happily, but a taunt flashed in his eyes,

"I'd like to hear what you want." Lawrence said cautiously,

"I want you to do something for me."

"What do you mean?"

"One thing, nothing that violates the International Wizarding Regulations."

"It sounds like it's not clear what you're going to do?"

"Ah-yes," Selwyn nodded, "I just think I'll use it at some point."

"Well, then—" Lawrence replied to her almost without thinking, "No."

"Don't think about it again?" Selwyn didn't seem surprised at all,

"No," Lawrence said briefly, "I won't agree to that request, please tell me what that means."

"What are you doing in such a hurry?" The corners of Selwin's mouth curled, "Why don't you listen to another request?"

"......" Lawrence didn't speak, his brow furrowed,

"Mr. Fucos did a good job of hiding it for you," Selwyn said, "or rather, the Ministry of Magic didn't care why you went to Mr. Fucos, and after they hurriedly cleared all traces of the scene and confirmed that the attacker was a wizard from abroad and not some Death Eater, Fudge didn't care why you were attacked."

"The wizard in charge of recording Mr. Focos's account of the situation was a friend of mine," Selwyn's emotionless eyes met Lawrence, "the same teacher who taught me the art of locking and breaking the mind."

"So?"

"You're going to enter an ice cream shop in the winter, probably because you're hungry and want to have an ice cream, the Ministry of Magic doesn't care about that, but my father is very interested—"

"What the hell are you trying to say?" Lawrence was a little impatient,

"The crown." After Selwyn finished speaking, a sharp glint flashed in her blue eyes, and Lawrence almost thought that he was seeing Dumbledore's eyes,

"I want that crown." Selwyn repeated,

"Mr. Focos isn't sure if that's true." Lawrence said,

"It's my business." Selwyn's tone was gentle, but what he said was tough,

"You're going to take this as a condition, meaning you think the crown is real?" Lawrence Temptation,

"Rovande," Selwyn smiled, the smile on her face disappearing in the next moment, "it's 'me' business."

"If the crown is real," Lawrence said slowly, "then I'm afraid I don't have the right to use it as a bargaining chip."

"It's no secret that the crown disappeared after Ravenclaw's death, and it's been hundreds of years since then—" Selwyn tapped on the table, "It's no longer part of the inheritance of magical property."

"Our private consensus is that whoever picks it up will be whoever it is, Rovand," Selwyn said, "you can safely trade it with me, even if the Ministry of Magic wants to take it back as a precious artifact later, that's my business."

Lawrence pondered, and Selwyn seemed dissatisfied,

"Are you thinking, after all, this is the school's founder's thing, confirmed to be a real crown, and should be returned to Hogwarts?" Selwyn said in a mocking tone, and Lawrence nodded,

"It doesn't matter, I can add one more condition," Selwin paused, "at most a year, I can return the crown to the school."

Lawrence hesitated, but he didn't seem to have any reason to refuse, the power attached to the crown was very similar to his ability to perceive his surroundings, and he didn't find anything else,

But since Selwyn was willing to return the crown in a year's time, suggesting that she might just want to study the legendary crown that represented the wisdom of Ravenclaw,

The only thing that worried Lawrence was perhaps Selwyn's inadvertent desire for the crown, and while Lawrence was thinking, Selwyn filled his glass,

"The most basic oath is enough, right?" She looked at Lawrence with her wine glass, waiting for his answer,

Lawrence sat statuesque-like in his chair, and he thought for a long time, and finally he slowly reached for the glass, and then raised it, and the two of them looked at each other, and then they whispered almost at the same time,

"Keep Your Promises"

They tilted their heads and drank from their glasses, the slightly acidic, cold, prickly liquid passed through Lawrence's throat and into his stomach, and they placed the empty glass back on the table, Lawrence grabbed the backpack behind his back and took out the crown carefully wrapped in parchment,

"I thought you would be able to bring it to me tomorrow, but I didn't expect it to be carried with you." Selwyn was a little surprised,

"I was going to find time to ask Lady Gray, the ghost of Ravenclaw's Tower," Lawrence explained, placing the crown on the round table, "but I haven't found her for a few days."

"So, let's get started." Selwyn whispered, "What do you think your interests are?"

"Why do you ask?" Lawrence wondered,

"Profit is what drives people's actions," Selwyn said, "At this sensitive time, Mr. Fosco, who is well acquainted with all kinds of ancient magical information, is undoubtedly being watched by those with ulterior motives."

"That guy wants to catch you, right? Your unexpected appearance at Mr. Focos's shop may have made him think it was a good opportunity."

"Catch me, why?" Lawrence was puzzled, but when he saw Selwyn's expression, he realized that his question was pointless,

"Oh, it's certain that there is no known organization that uses this as its slogan, 'For the eternal good,' and I'm sure Professor Dumbledore said the same," Selwyn said, "The only possibility, that slogan is just that man's 'personal gain'—"

"He's trying to capture you and Mr. Fucos for his own personal gain." Selwyn summed it up with a chuckle,

"Is it possible that a new organization was created?" Lawrence was clearly not satisfied with this answer,

"The Magical Accident Handling Team for this incident is—"

"Another friend of your father's, I guess." Lawrence rolled his eyes,

"That's right," Selwyn smiled emotionlessly, "When Fudge got the accident report, he hurriedly ordered all information and traces of the scene to be removed, he didn't want to mess with those crazy people at all."

"Crazy?" Lawrence frowned,

"A society of skilled dueling wizards," said Selwyn, "is a very complex composition, probably in the eighteenth century, a notorious dueling society that called itself the Silver Spear." (Note 1)

"Silver spear." Lawrence silently recited the name,

"One of the famous features of the Silver Spear Duel Society," Selwyn introduced, "is that only wizards with a wand of aspen wood are recognizable, it is white, finely grained wood, and when crafted into a wand, it takes on an ivory and elegant appearance." (Note 2)

"You're right." Lawrence recalled, "I ignored the wand he was holding."

"Not many people are willing to learn wands now, even if you read the knowledge of books, can you recognize wand wood when you see it?" Selwyn sneered, looking disapproving, "So, which alchemy family was in the mid-to-late nineteenth century, with only one successor left, and the family almost disappeared?"

「…… Agillos." Lawrence's mind flashed to Heidero. Mr. Aguiros's pale and smooth countenance,

"In the mid-eighteenth century, when the Aguiros family had not seen a single Hydro for two centuries, a member of the family armed with a poplar wand and a few companions who were also fond of dueling created the Silver Spear."

"The notoriety of the Silver Spears soon spread across Europe, and they traveled around the world, dueling people or recruiting new partners, and then the nature of the community gradually changed."

"Bearers of aspen wood are usually strong-tempered, adventurous, and easily attracted to the new order," Selwyn sneered, "This is a wand belonging to the revolutionaries, and there is nothing more disturbing to those in power than a group of aspen wand bearers gathering together, and their fears have proven to be somewhat justified, and Silverspear has some plans in secret to try an armed coup d'état."

"There can be no doubt that the coup d'état was uncovered before it was carried out," said Selwyn, "and the end result was that from the beginning of the nineteenth century to the mid-to-late nineteenth century, until the birth of the thirteenth Hedro, the last of the forty or fifty years of the great and prosperous family remained."

"The thirteenth Hedro, became Nicol. Lemay's disciples, under the mediation of Mr. Lemay, the Aguiros family paid several patented alchemy techniques in exchange for a guarantee that the countries of the continent would not pursue the matter again."

"Over the years, it is widely believed that the thirteenth Hedro did not have the alchemy talent of an ancestor, but had the political skills that his ancestors did not have, and that he succeeded in bringing the family to prosperity again," Selwyn concluded, "but it is clear that the Silver Spears were never really disbanded, and that they were seen on the battlefield in the mid-twentieth century when Greenwald wreaked havoc on Europe."

"But how can we be sure that the man who attacked us in Diagon Alley is the man of the Silver Spear? Maybe it's just someone else who happens to be holding a poplar wand?" Lawrence was clearly not happy with this answer,

"We know that man." Selwyn pouted, "Professor Dumbledore won't use some tactics, we don't have that many scruples,"

"I can't pretend I didn't hear that." Lawrence frowned,

"Don't think too much about it, Mr. Focos is very good," Selwyn met Lawrence's gaze impatiently, "If anything, Professor Dumbledore has already come to settle accounts with us."

Lawrence thought for a moment and reluctantly agreed with her, while Selwyn paused and continued,

"That man's name is Ares. Agillos."

───────

Note 1: The following is a small part of the Silver Spear mentioned by PotterMore, Wand Wood Aspen: An_infamous_and_secretive_eighteenth-century_duelling_club, which_called_itself_The_Silver_Spears.

The rest of the book is set aside.

Note 2: I'm not sure which kind of wood Aspen translates into, in wand wood, there is another Poplar, which is also a poplar.