Harry Potter: Ero World

{Gringotts, Diagon Alley, London}

{23rd June 1991}

...

"Well, now it seems like we have a lot to talk about don't we?" Rigel spoke as he looked at Glothyook, the goblin growled and Rigel looked at his level once again.

"Alright, admit your gambit failed and we can move on. I'm not going to give you the same benefits that Malfoy promised because frankly, you don't have the same leverage anymore, your only play left is to deny me access to some funds right now. You could place hurdles for me that I acknowledge, but why don't we call it quits and focus on the benefits? I don't know much about the Wizarding World but I do know that the Gaunts are an old family." Rigel offered, he wasn't interested in what deal was in place between Glothyook and the Malfoy family right now.

'From the original novels, goblins were greedy as fuck, so I just need to be a better alternative.' Rigel concluded.

"The Gaunts were piss poor and near broke boy, so you don't have any leverage..." Glothyook grunted again, he was a lot more attentive to the conversation now compared to before.

"I mean sure, but I'm not talking about just gold am I? I don't know how your seniority works but working as the accounts manager for not one but two ancient Houses sounds like an appealing deal to me." Rigel countered. The Goblin grunted as he looked down at the parchment again, he was contemplating something.

"The heirship to the Most Ancient House of Gaunts is free, even though an heir did come around looking for any vaults that he could claim. But upon discovering that there were no Galleons left for him to spend, he denied claiming the heirship to the Most Ancient House of Gaunts." Glothyook replied, his tone lightened up slightly as he began rummaging through his desk drawers.

'Sounds like Voldemort, though why didn't he go through the political route? It never really made sense, maybe it was the Horcruxes that destroyed his simple reasoning.' Rigel thought. 

"I'm gonna contact someone who was in charge of the accounts of the Most Ancient House of Gaunts," Glothyook spoke. His tone shifted for the worse slightly after he looked through some of the papers.

"The account belonged to someone who you couldn't cut off from this process," Rigel guessed and received an annoyed glare from the goblin.

'Alright, so things might become more complicated for the moment.' Rigel thought.

"What about the Black heirship, who holds that at the moment?" Rigel asked.

"According to our records, the heirship belongs to Sirius Black, who in his will has passed it along to Harry Potter. But as a member of the Male line of the House Black, your claim supersedes Harry Potter's claim to the heirship." Glothyook responded. 

"What about Draco Malfoy?" Rigel asked.

Glothyook remained oddly silent for a couple of seconds before he finally relented. "Draco Malfoy belongs to a branch that's outside of the main family. According to Narcissa Malfoy's dowry arrangement, he would automatically take over the heirship if there are no legitimate heirs in the Black Family." 

'Huh, so was Narcissa's whole marriage a plot by Malfoy Sr. or did things just go along their way.' Rigel thought, there were too many coincidences for this situation to come along.

"Did Draco already gain the heirship?" Rigel asked if he was worried about it now since Glothyook mentioned that he could only claim the Gaunt Heirship because the previous heir refused to take it on.

'I mean surely not right, otherwise, Narcissa wouldn't be here trying to sabotage me.' Rigel guessed.

"No, the heirship ceremony could only be conducted during the Full Moon on the Winter Solstice. The heir needs to be at least 18 years old..." Glothyook replied.

'Right makes sense, but then that means that I need to be a lot more careful, since the Malfoy don't have much time to take care of my claim.'

"You talked about the claim, what is the process to file my own claim?" Rigel asked.

"Your claims were filed the moment this parchment absorbed your blood. A copy of this document will be generated in our main office and your claim will be evaluated. Depending on your age, and the validity of your claim, the heir ring would be sent to you or Malfoy on the day before Winter Solstice." Glothyook spoke.

"Alright..." Rigel spoke, there were several things that didn't make sense still.

'If just using these parchments would have started my claim then why would Narcissa and Glothyook use this method to deny me?' Rigel thought.

"Your and the Malfoy's plan was to defraud me of my inheritance, so why would you file a claim for me?" Rigel asked, try as he might he wasn't able to figure out any reason for this method that they both took.

"Lady Malfoy was sure that you won't have enough pureblood heritage within you to pass the inheritance claim..." Glothyook responded, at Rigel's puzzled look he elaborated. "Each family has different requirements that need to be fulfilled in order to be eligible for an heirship claim if the House is endangered of becoming extinct."

"...Originally the Black family had a 100% Blood purity requirement, but Arcturus Black later changed this in 1978 to a 75% limit. If you had just used one drop of blood to track your lineage, then your claim would have been filed at 100% pureblood ancestry. But since there is some muggle blood in your ancestry, your actual blood purity requirement was finally filed at 81%, enough to pass the requirements."

...

Rigel sighed as he took a sigh of relief, he had dodged a bullet unknowingly. If there were scores for his interaction with Narcissa he probably lost 3-1. 

'Her plan was simple, taking advantage of me not knowing much about this process, she wanted to make sure that I wasn't simply eligible for the heirship claim requirements. If I had just chosen the [Half-Blood] option with the house of black and a muggle-born witch as a parent then my blood purity would hang around 50%.'

Narcissa's plan was simple and effective, she just didn't anticipate that either Sirius or Regulus would have had a child with another pureblood family. 

'Her reasoning made sense, if my mother was part of another Pureblood family, my letter would not be addressed to a muggle orphanage.' Rigel thought.

"So can we talk about galleons, I have some shopping to do?"

...

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{Gringotts, Diagon Alley, London}

{23rd June 1991}

Narcissa stormed into Umaenock's office. Lucious and Draco looked toward her, but before they could speak Narcissa spoke to Umaenock.

"Find out who Cynthia Marlowe Gaunt is?" Her voice was leveled and sharp.

"What happened dear?" Lucious asked after his wife finally sat down on the empty seat. He wasn't worried before but looking at Narcissa's stoic face he realized that their plan had gone south.

'Wasn't he in a muggle orphanage, and why is the Gaunt family involved in this, last I heard they were extinct.' Lucious thought.

"It was Regulus not Sirius," Narcissa snarled as he gritted her teeth, her main plan had failed and things would not be so easy anymore. If they had more time then she could think about dealing with the boy but he was going to Hogwarts in a month's time.

'Additionally, since he's Regulus's son, he's even protected by the rest of the conservative families. I have worked so hard to have the entire Black family fortune in my hands, he's not going to take it away from me now!' Narcissa thought, her mana went haywire as her eyes glowed slightly.

...

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AN - I'm making Narcissa a little more dominant, it works better for the story I promise! After Gringotts, the shopping trip would start, and Rigel would meet his first target! Any guesses?

P.S- 8 Extra chapters on P.atreon! Read 2-3 chapters every day instead of just 1!