Timeline: BtVS: Post-Chosen & Harry Potter - J.K. Rowling
Disclaimer: Anything copyrighted belongs to its legal owners.
Author's Note: Written for Day 7 of the 2023 August Fic-A-Day.
A/N 2: Um... Yay, Dawn?

"We're related to the Boy Who Lived?!"

It had been almost six months since a wizard had rung Buffy's doorbell and told her they were cousins. In the intertwining months, she had done a lot of research of her own, using both Dawn's family research from years before and Harry's family tree as basis points, but working on her own to see if it would end in the same results. She had also called up various family members, including her Aunt Arlene even if she was on the wrong side of the family.

She did manage to confirm that Cecil Henry Potter was her paternal great-grandfather, although there was almost no other information about him. There was more information about her grandmother, Agatha Beverly Summers nee Potter, even if there was a running question as to why the woman had never had a legit birth certificate. It was something Buffy had remembered hearing about as a young child but hadn't really paid any mind since it hadn't meant anything to her. Now those stories were giving credence to Harry Potter's claim of them being related.

After all, from what she had been told from other sources, the British wanded magical community was living so isolated from the rest of the world that they were not even registered as citizens of Britain. It was somehow connected to a minority of older magical family lines who believed themselves to be better than everyone else, or something along those lines. She had checked out of the conversion because she was itching to kill something after a 16-hour plane ride, and discussing a backward community just hadn't interested her.

Both Dawn's research and Harry's hand-written family tree showed the same thing; Buffy (and Dawn), their father Henry 'Hank', their paternal grandmother Agatha, and their great-grandfather Cecil. That had been easy enough, and she had already known all of it.

After some research, she was able to find Hadrian James 'Harry' Potter and his mother, Lily Jade Evans. She was able to confirm that they both existed with birth certificates and also a death certificate in Lily's case. What she didn't find was any information on James Charlus Potter, or James' father Charlus. Or Cecil. Or Lily's marriage certificate.

Harry had kept his promise and sent his DNA to the same website Dawn had used when she was in her genealogy phase, and they had been matched as having the same great-grandfather just as he had claimed.

Which had brought her back to the conversion she had skipped about the isolated magical community in Britain. If that was where Grandmama Summers had come from it explained the lack of information (and lack of a birth certificate as she wouldn't have had one outside of the community), why she didn't want to talk about her past or her parents, and why she had always insisted on keeping their family close. It didn't explain why Buffy had no memory of her ever speaking with a British accent, or anyone talking about their British relatives.

It didn't explain why she had apparently been kicked out of the family as a young child. Public records showed she had attended public school in America from the age of 10 or 11, and that she had lived in an orphanage. Which had been news to her since no one had ever told her that.

Buffy did find a marriage certificate for Hadrian James Potter and Hermione Jean Granger, along with birth certificates for their children. A quick detour proved that Hermione's family existed in the real world.

This brought Buffy back to the present and her sister's odd proclamation when she told her about their new relative. "What do you mean the Boy Who Lived?" Because, huh?

If she had been able to see her little sister she was absolutely certain the young woman would be rolling her blue eye skyward.

"Don't you ever listen when people talk?" Without waiting for a reply, she went on. "Harry Potter is famous all over the world for being the only person to have ever survived being hit by one of the world's most deadly curses, and he has survived it twice!"

Now that she mentioned that, it did sound like something some of their British allies had been talking about on occasion. Well, fangirling had probably been a more accurate term, but who was she to judge?

"Right. Larissa and Clementine are huge fans of his, and his green, so very green eyes."

"You've met him, are his eyes really as green as they say they are?"

Trust her little sister to get off topic, but if he hadn't been a relative she might've considered him because those eyes truly had been mesmerizing. "Yes, he has the greenest eyes I have ever seen. But if you come back to Colorado Springs you can meet him and see for yourself." Then because Dawn had been the one to bring it up, "He might even let you fangirl a little if you behave yourself."

"Haha, you're hilarious, but I'll be there, just because I have a lot of questions. There are so many rumors about him and I want to know what's true and what isn't."

"Suuure you do," Buffy teased. Then slightly changed the topic, "Did you know that his wife is a professor of classical languages at Oxford?"

The entire conversation derailed from there, but her little sister was definitely going to be at Buffy's apartment in three weeks to meet their cousin and his wife. It would be good to have support in this, especially since Dawn had been so obsessed with their family tree back in her teens and early twenties. It meant she would have a lot of information her own research hadn't been able to find in so short of a time span.

She scanned everything Harry had given her so Dawn could have a look at it to compare with her own research, but she was pretty certain Dawn hadn't found anything on Cecil Potter's side of the family either. Not unless she had cheated and gotten someone to magically help her, and given who they were related to someone would've spilled the magical tea if that had been the case.