Timeline: BtVS: Post-Chosen & Charmed: 04x01: Charmed Again.
Disclaimer: The Buffyverse belongs to Joss Whedon and Charmed belongs to rich people with expensive lawyers.
Author's Note: Written for Day 05 of the 2020 August Fic-A-Day.
Five days after finally meeting her older half-sisters with a bang, none of them had been able to get a hold of their shared father. With one thing and another they hadn't been able to meet up with each other either, Slayage and personal things suddenly demanded all of their attention. They'd managed a few phone conversations though.
But Buffy was finally standing outside of 1329 Prescott Street again. This time she there was no demons to make any interruptions, so she was able to ring the doorbell like a normal person. Soon after she was greeted by Prue and invited to enter their home.
"Don't verbally invite anyone inside. It allows vampires to come into your home without permission anytime they want."
Prue gave her a confused look, "How are we supposed to greet people then? It's basic manners to say that."
"I know. You can invite them in, just don't use those words or say yes if someone asks if they can come in. Move aside, open the door wider, or gesture for them to enter. You can even grab them and pull them inside, but if your guests are undead it won't be able to enter and you'll have your answer. I'm sure you have enough unwanted guests here, you don't want to add vampires to that."
They met Phoebe in the entry hall, but rather than enter the living room again they went up two flights of stairs. As they ascended the stairs, Buffy recognized Piper's voice reciting a spell.
"Power of the witches rise
Course unseen across the skies
Come to us who call you near
Come to us and settle here.
Blood to blood, I summon thee
Blood to blood, return to me."
She frowned. "Who are you trying to summon?"
"No one." Phoebe gave her a confused look. "We just want to give you a little test. Why do you think we're trying to summon anyone?"
Buffy gave her an amused smile. "Enhanced hearing, remember? I can hear Piper saying a spell up there and it sounds like she's trying to find someone."
Both brunettes looked slightly confused and a little worried. Thankfully they were soon through the attic door. Once through the door, she was met by the sight of old furniture and the usual knick-knacks often found stored in attics and basements. Piper was sitting by a small table with a chalice and several smalls bowls and bottles on top. Right in front of her was a large open book. Next to the first table was a second one filled with small corked bottles.
"Who are you trying to find?"
"Yes, what Buffy asked. No one's missing, that we know of." Prue added.
"No, but finding out about Buffy made me wonder if we have other sisters or relatives out there. Dad got around after he left Mom, and maybe before as well, so who knows who might be out there. This way we'll know soon if there are others."
Uh oh, Buffy thought. That might cause Dawn to come to San Fransisco. That was a problem because she hadn't told her little sister that she was going to seek out family. She'd kind of implied she would travel across California and maybe try and get back in contact with Hank, but that was it. She'd also neglected to tell Prue, Piper, and Phoebe about her little sister...
Trying for a distraction from her thoughts, she asked. "Do you really think Victor has any other children than us?"
"No. Maybe. I don't know." Piper sounded a little frustrated. "He kept you hidden from us. He stayed away for two decades because he couldn't handle Grams being in charge. Who knows what he's hiding."
When she put it that way, it made sense to try and get a little magical help to get the answers faster. It also meant making a confession of her own...
"Umm. Ladies? About unknown relatives appearing out of nowhere..."
All three sisters groaned, but Phoebe got her words out first. "You have a love child stashed away somewhere, don't you? A little girl." Her expression said the woman was only half-joking.
Buffy choked and then began laughing. "No, no. I don't have any children." Well, that was kind of up for debate, but it wasn't what Phoebe was implying. Three sets of eyes dropped to her covered mid-section and Buffy tried not to roll her eyes like the teenager she hadn't been in years. "No, I'm not pregnant and I'm not trying to get pregnant either." She so wasn't ready for that, if it was even possible.
"I have a younger sister, a younger full sister, that Victor doesn't know is his." She looked away for a moment. "It's complicated. The magical kind of complicated, and not my story to tell. So, please, don't ask."
Prue studied her closely. "I did a background check on you, and both you and your sister are listed as the daughters of Henry Summers. There are no adoption records because I checked."
"I know. Mom and Hank were engaged, split up for a couple of months, Mom 'dated' Victor for a few weeks, split from Victor, then got back with Hank, and they got married. They both assumed I was his. I don't know why, but Hank demanded a DNA test when I was three."
"Okay," Piper interrupted, "We're up here for a reason, let's get to that and then we can get back to this discussion during dinner." Everyone agreed, except for Buffy who gave all of them a questioning look.
"Why are we up here, aside from this is where Piper was hiding?"
"Come here," replied Phoebe. She had taken the large green book from the table and placed it on one of those free-standing display stands. "Put your hands on the book."
A little nonplussed she walked over and did as she was told. All three of the Halliwell's were keeping a close eye on both her and the book. It was definitely magical, she had felt it before she even laid eyes on it. This close it was thrumming with it and it intensified when she laid both hands on it. It caused an odd, but not unpleasant feeling.
Looking up, she asked. "OK, now what?"
"Now we go down and eat the wonderful dinner Piper prepared for us," Prue replied with a smile.
Still confused, Buffy removed her hands from the old spellbook and walked back to her sisters. "Why did you want me to do that?"
"We were just checking if the Book considers you to be evil or not. It's kinda important to us, but you passed so now we can eat." Phoebe said it in a flippant way as she grabbed her arm and pulled her towards the stairs, but Buffy got the impression they were all relieved. She thought about asking what the book would've done if she was evil or an impostor but decided against it. A homecooked meal by a professional chef sounded much better, and there was time for more questions later.