Nanettez: his father is a widower, his mother-in-law is a widow. They're friends. She was at the party. While there are guests at the party that would find mundanes (muggle as a term won't be used except by Slytherinesque characters, it's an incredibly dumb term and in this AU it's akin to racial terminology) undesirables, they wouldn't offend their host, especially underneath the wards the Potters maintain.


James looked around Sirius's family home in London-Sirius's mother had sold off their country estate to fund Vodemort's campaign of terror-and was quite glad he hadn't brought the twins along. Sirius, Remus, and James were immediately inflicted upon with a harangue by the portrait of his now dead mother.

"Shut up you useless old whore!" Sirius screamed back.

The three spent two hours trying to get it off the wall then James finally suggested, "Forget doing it the magical way, Remus, conjure up some paint thinner!" James knew Remus could handle the distraction better when conjuring, even if James was the transfiguration prodigy.

"Happily!" the werewolf said.

She screeched at them but the conjured and banished glass bottle of paint thinner went to work. Her screams of anger trailed off until there was only a sludgy trail of ruined paint.

There was a scream of anger and they turned to see a maddened house elf flying at them. Sirius's wand snapped up and he cast a severing charm, slicing off the old house-elf's head.

"Why did you kill it?" Remus asked, a little shocked.

"I hated that thing. Drove me crazy for years. The house elf dad gave me for my apartment? Now she's how a house elf should act. In fact," he snapped his fingers. "Pinky."

"Yes Master Siri-oh. Snarf."

James and Sirius smirked at the Low Elf curse word while Remus looked confused until James whispered what it meant.

"Pinky, I need you to start cleaning this place up. James, Remus and I are gonna live here. I'll use the top floor, Remus will get the second floor, and James and the twins will use the first floor, the ground floor will be the common area. Put anything cursed or dark into the library on the first floor, we'll deal with it later. Bring in, oh, however many house-elves from the Manse you think we'll need," Sirius said. "And deal with Kreacher and the painting. We'll put Lily's painting there once it awakes."

"Yes Master Sirius." She looked around then snapped her fingers three times, bringing Mizaru, Kikazaru, and Iwazaru, three recently acquired house elves from japan whose master had failed to repay a significant debt to the Potter corporation. She began giving them orders and soon the four house elves were cleaning the place while the three adults sat down to begin planning out the magical refurbishment of the terrace house.

"I wonder if your parents ever found out dad bought up all the houses on this block," James asked.

"Doubt it. Why did he?"

"He was going to buy the house from the estate sale, he didn't realize you were going to inherit. I can't believe your father didn't actually disinherit you. I think he planned to give them all to you so you could raze the place and build a condo complex or something."

"Neither can I. He was always doing whatever mum told him to. Fuck them. Anyway, I figure I'll let Sula design my floor."

James dropped his wand: Both Remus and James were staring at their best friend. "Sulabha? The Veela girl who left Hogwarts after fifth year?" She was the daughter of a diplomat and not particularly powerful either as a witch or as a veela. Her allure was barely strong enough to tempt most teenage boys, it was her beauty alone that captivated. When she had left hogwarts she had gone to Paris and immediately been snapped up by some modeling agency.

"Yeah, I got an owl from her this morning, she wants to try again. When she had heard that Voldemort was dead she had immediately written the letter, she said."

"She always was smart," Remus said. "Even if weak casting wise."

They all nodded. Sulabha was a wonderful young woman but she had had difficulty even casting cheering charms, even using a wand crafted with a feather from a family member.

"She'll still be working as a model too," Sirius said with a dreamy voice. He had done his best to make sure he bought everything she modeled in. "Oh, Remus, she's bringing her PA along, she thinks you two will hit it off. So we'll make sure your floor has room for kids too."

Remus started to protest until James hit him with a silencing charm and Sirius hit him with a sticking charm. "Now, James, how do you want to design your floor?"

He hesitated then softly said, "When Lily's painting awakes ask her. I'm going back to the Manse, see my kids."

They both nodded as James disappeared.


When James walked into the nursery of the manse, he found Albus holding a sleeping Harry and reading a scroll. "Are you kidnapping my son?" he asked softly.

Albus chuckled softly at that. "I'm verifying something. I'm worried about this scar. James, I need your permission to cast legilimens on your son."

James took Harry from Albus as the boy woke. "Why?"

"He hasn't spoken since that night. I think when Voldemort died, well, I think he might have tried to possess Harry. I don't believe he's truly dead and if he did attempt to do so, he might have left something behind."

James shivered in fright but nodded, holding his son and watching as the old man looked into Harry's eyes.

They both seemed catatonic for nearly a minute then Albus came back, crying.

"I was right. There's-there's years of information in there, decades. Perhaps even a century's worth. It's likely he got a hold of a time-turner to help expand his knowledge. James, this is dangerous but I think the safest thing we can do is for one of us to go in and carefully compartmentalize the knowledge, locking away the dangerous things, letting the rest get unlocked as your son learns it on his own."

"Couldn't we just obliterate it all away?"

"It would be like trying to banish all the sand on the beach save for a handful of specific grains. Impossible. If we don't, well, I think the knowledge will corrupt him."

James nodded once more. "Can-how long will it take?"

"The rest of the day easily. Let's tell Somerled what we're doing." He decided not to tell him about his other worries since he had no proof at the moment.

Albus picked up Jazmin as she had just awoken from her nap and they went down to James's father's study where he was looking at the month's figures.

"Jimmy, Albie, what's going on?"

James explained the problem to his father, successfully resisting the urge to curse him for calling him Jimmy, if only just so.

He took his granddaughter and sat down to watch the two begin.


James scratched his beard and decided today was the day to shave. It had been four months since his wife's death. Three months since his friends' imprisonment in their own minds when some still free Death Eaters attempted to torture the whereabouts of Voldemort from them. Two since Pettigrew had been caught. And a month since he had learned the truth about Severus Snape. Only Albus's pleas kept the greasy fuck alive. James and the Marauders had given their word: until true proof of death was achieved, Snivellus would survive. But the day there was proof... Somerled Potter had already initiated the paperwork for a blood feud via the International Magical Convention[1]. The day there was proof was the day that paperwork got filed and that was the day 1000 soldiers strong Clan Potter[3] would scour the world for Snivellus Snape, the betrayer of his only friend thrice over.

After his shower and dressing in clean robes and doing his hair properly like the son of a Chieftain[4]-he chuckled a little bit at the thought of Sirius screwing up his potion to grow out his hair now that he was the head of his family-he walked out to find Minerva and Albus waiting, playing with the twins.

"Today then?"

"Yes," Albus said. Today was the day the Potters disappeared and a new family called the Xylophones appeared. And the day Somerlet Potter adopted a family that if anyone could remember the Potters, they'd think they were exactly the same.

It took nearly an hour to properly cast the modified hex-while the Fidelius on an object was a charm, Albus felt classifying it as a charm when cast on a person's self/sense of self wasn't exactly the proper nomenclature-three times to hide the three then Mineva whispered a phrase into a confused looking Somerlet's ear whose face broke into a smile then he was pulling James Xylophone into a hug. "Welcome to the family my boy. It's kind of frightening I so quickly forgot you," he muttered.

James chuckled and picked up Evan Xylophone and handed him to his grandfather then picked up Jasmine Xylophone-Harry's name had been changed to both honor his wife and make sure he wouldn't be so easily linked.

"Your cheek is bleeding," Albus said to James.

He turned to look in the mirror and cursed when he realized what was wrong. "Didn't use a zed when you shaved?" the older man asked and James nodded. On the 23rd of every month, the shaving charm which used a swooping S shape on most days required an inverted Z to properly shave. Otherwise it left the user of the charm with a delayed cutting charm on seven spots on his face. On the 29th of February you couldn't even use the spell or you would end up blowing up your wand-the spell was why enchanted razors were so popular.

He cast the styptic charm on himself then wiped the blood off and thanked Minerva for being the Secret Keeper.

Once that was taken care of, Sirius, Remus, and James began casting the Fidelius Charm on 12 Grimmauld place.

It was late evening and the Potters and the two Marauders were enjoying their dinner when an owl arrived for James Xylophone and Sirius Black.

After a number of detection charms, they opened it and Sirius almost dropped it. It was a job offer from the elite Auror/Hit-Wizard program, the International Blackguard Aurors.

"Moody suggested you," Remus said, reading the bottom of the letter.

"I think we should," Sirius said. "Remus can be my Regent. It'll be a good paycheck too."

Remus nodded hesitantly. "And what specifically will I do as Regent?"

Before they could answer, Evan said, "Uh oh."

Sirius and Remus looked at their friend then each other and apparated away. James cursed them under his breath and picked up his son. "Did someone make a boom boom?" he asked cheerfully.


Sirius and Remus were walking down the street, congratulating themselves on escaping diaper duty when they stopped upon seeing one of his cousins, specifically Narcissa. She looked wild-eyed, her clothes a shambles, her hair a fright, and her makeup ruined.

"Sir-Sirius?!" she gasped upon seeing him. "Please-please help!"

He rushed over to catch her. He wasn't in time and she ripped her skull open on a nail sticking out of a poorly maintained building.

"St. Mungo's?" Remus asked. Sirius nodded, hefted his cousin, then disappeared.

Remus went to send owls to James and Somerlet to let them know what had happened. If it was a trick by the wife of a Death Eater, they needed to start preparing to plan vengeance. If It wasn't a trick, they needed to find out what had happened to the middle temperament Black daughter.

He moved back in and sent an owl off to Andromeda Tonks as well, the one Black daughter that hadn't gone all evil.


Andromeda appeared in the apparition safe zone at St Mungo's holding her daughter's hand then smiled at the girl. "Come this way Nymphadora. Your Cousin Sirius brought your Auntie Narcissa here."

"Yes mummy," the girl said, straightening the ribbon and pleats of her dress[5]. "Are the babies going to be here?" she asked hopefully. She had just recently met the twins and adored them both. She had been trying to teach them Candyland.

"Sorry little one but they're at home. I'll owl them later-I'm here to see Narcissa Malfoy née Black," she said imperiously to the wizard at the reception desk. "Tell me where to go." She had fallen into old ways once she had been reinstated to the family Black by Sirius three months before.

Nymphadora waved to the wizard as her mother led to the private room Narcissa resided in.

"What happened?" she asked when she saw Sirius standing outside, furiously puffing on a cigarette. "And put that out, she's only seven."

"Sorry." He dropped it on the ground and stubbed it out. "Here, there's a sweet seller just down there," he told the girl handing her a few knuts. "Go get yourself sick!"

She was off and running before her mother could even say no.

"Sirius!"

"She's been under the imperius and a few controlling potions. Andi, she was raped constantly until she was pregnant then he began ignoring her." His voice was beyond anger. "And all I can do is cancel their marriage, I can't do anything beyond that. I can't even tell the world he's a fucking limp wristed, cock sucking, pillow biting, faggot[6]!" he hissed. She could be told because she was a Black as well. "She's been on that potion to change her mood since at least when you were all at Hogwarts."

Andi dropped into a chair heavily. "Do-do you think it's why Bella was like she was?"

"No, Bella's always been a horrible human being. Remember when you were five and-"

She hissed a yes, glaring at him.

Nymphadora returned and held out a bag of Bertie Bott's Beans and some Cinnamon Bears that were trying to escape their bag. "Want one mummy? Uncle Sirius[7]?"

"A cinnamon bear would be nice." he said after a moment.

As soon as it went in his mouth he regretted it. In every bag was one that was firecinnamon. he was now bright red, his hair was flames, he was crying-though the tears were turning to steam as soon as they came out, and his snot was flashing to steam as well.

Nymphadora giggled at his misfortune while Andi grinned as she popped a candy in her mouth. "Mmm, hazelnut toffee."


Marilee picked up Evan and smiled. She had been a little flabbergasted when she forgot her own grandchildren's names and had harangued Somerlet when he brought her the cards that revealed the truth. When she reminded him she was of an age where people like her started having memory issues, he had sent for his private healer.

"Your grandfather says that I should have a sharp mind until I'm a hundred," she told the boy then kissed his cheek. "I do like your new name," she admitted. "Named twice for my husband." Harold had been her husband's name though little Harry's name was Harailt James Potter, the Har- for her husband, Harailt for James's father, and James for James himself.

She put the boy back down with his sister and picked up the book she had started reading them, the Big Book of Big Cats.

"This is a Jaguar. Can you say Jaguar?"

"Shag-gar!" Jasmine said and giggled.

Harry repeated what she said and Marilee smiled. Close enough, she thought. "What are these?" she asked, pointing at the markings on the animal's coat.

She turned to the next animal and Harry brightened at the large Siberian Tiger[8] kittens rough housing.


Albus finished checking his work and nodded softly. With the protection Lily had placed on their children-though only activating it on Harry at her death (he was sure it was due to proximity, even magic had some limitations)-any home they shared with Lily's blood meant that that home would be protected as well. At least a week with both twins, he figured.

"Ahh, Fawkes, i see you've returned," Albus said as the bird flew in his open window. "Excellent timing, do you feel like taking a message for me or have you filled your belly too full of delicious fish?" Hagrid had been setting snares for fish all morning and had become used to Fawkes stealing his catches if left alone too long.

Fawkes settled on his shoulder and watched Albus write the letter and copy the findings.

He took the letter and disappeared.

Albus stood and went to leave his office to get dinner.

He was just finishing a leisurely dinner with a conversation with Slughorn and Minerva about a new serial on the the Gold station on Wizarding Wireless Network when Fawkes returned with a letter from James.

Albus found it mostly boiled down to This is brilliant.


Narcissa awoke to find her son sitting on the end of the bed, playing with some soft blocks while her younger sister and niece sat on chairs, playing a card game it seemed. "Andi?" she asked softly.

"Hello Cissi. How do you feel?"

"Heavy?"

"Not surprising. You've been under the imperius and mind control potions since you left Hogwarts."

She stared at her sister. "W-who?"

"At first Sirius and I thought Malfoy did it but it's more likely our mum and dad and his parents colluded to do this."

"Where's Bella?"

"Azkaban. She was a Death Eater, she was caught torturing a pair of Aurors. She and her husband and brother-in-law are in Azkaban."

She nodded. "Wher-where's Lucius?"

"Don't know. They arrested him as a Death Eater but he bought his way out. He's at some retreat, allegedly shoring up his mental defenses. And no, you can't testify. Your mental state over the years makes it difficult to prove you're telling the truth."

Narcissa nodded at that.

"Now, you will come stay with us for a while. Sirius is setting up a place for you. probably somewhere off Odic[9]. There're nice places off there[10]."

"Mummy?" Nymphadora interrupted.

"Yes dear?"

My gift?"

"Oh yes." She moved aside and picked up little Draco to hand him off to Narcissa while Nymphadora placed a cookie bouquet on the bed next to her aunt.

"Thank you," Narcissa said softly. "It's Nymphadora, right?"

"Yes."

"Your mum named you after our great-aunt. She was a wonderful witch, very powerful, one of the best aurors ever."

Nymphadora looked to her mother who nodded. Nymphadora had an epiphany.


James appeared in his mother-in-law's backyard and knocked on the door.

There was a squeak then the door opened and Marilee holding a diaper wearing Jasmine smiled at him. "I was just about to give her a bath."

"Go ahead, i just got a letter from Albus. Lily used a specific spell to protect Harry, I wanted to discuss it with you."

She nodded and led him in.

He told her about it as he helped out by giving Evan his bath at the same time.

"So, a week here, a week with their granddad, then back home?"

"Well, they can visit you any time you want or have them stay longer than a week but yeah, essentially."

"Intriguing. So, it's the blood?"

"Yeah. Blood wards are old magic. Mostly forgotten. Lily-Lily was researching them and had access to a very special resource[14] I can't discuss." She nodded at that. She knew about the secrecy statutes of course but she also knew there were some family secrets and the like amongst the older families.

He started to tell her about his new job with the Blackguards.


Sirius walked into 12 Grimmauld Place and smiled. It was so very different than the house he had grown up in. Instead of green and silver and dark woods everywhere, now the rooms were bright and airy with large windows and each floor was magically modified with significant amounts of magical extension work to give them two extra floors and a private quidditch field underground. It's scary how powerful house slash low elves[15] are, he thought.

He walked to the back opened the gate, revealing a beautiful private park surrounded by the rest of the terrace houses on the block, also heavily expanded by magic. He looked to his left and realized there wasn't another door like there was on his side of the fence. He closed it and opened the other gate and found dozens of plots for communal gardens. He wondered what the idea behind it was and made a mental note to ask Pinky[16] what was up.

He walked back into the garden of his place and noticed four doors on the back of the house then smiled. One had Potter-Black painted above it, the second had Lupin, and the third had Potter. He opened the Potter-Black and found himself looking into the sitting area of the third floor. "Brilliant," he muttered.

"Master?" said a house elf.

He turned and saw it was one of the triplets from Japan pruning a dittany shrub back-when they got too big, their vapors could overwhelm-into a careful spiral around its main trunk. "Just noticing all the work you all did. Wonderful jobs."

The house elf looked very please and bounced slightly as it continued working and moved onto a new plant to maintain.

He walked inside then walked down the stairs and saw Remus's floor was beautifully done. He noticed some silver plates and silverware and pulled his wand, running a diagnostic spell. White gold, he realized.

On the Potter floor he found they had placed all the dark items they couldn't decurse in the library like he had asked. He cast repelling wards on the room since a significant amount of the items were actual silver. He and James would deal with the items eventually.

He smiled when he saw two bedrooms next to each other with Harry and Jazmin written on them. I wonder if I would see Evan and Jasmine if I didn't know the secret, he mused as he looked inside. The rooms were enormous round rooms with two pairs of doors between them. He opened the furthest door and saw it was a bathroom for the twins to share. The other door led to a playroom filled with the many toys James and Lily had bought for their children and the obscene amount of toys Sirius had bought his godchildren.

He paused a moment, remembering the children's godmother and realized they hadn't told her the secret.

"Oh, fuck!" he gasped.

Sirius ran out and down the stairs, apparating as soon as he cleared the anti-apparition wards[17].

Sirius appeared outside the Ministry and flipped his badge out as he strode past the security imperiously, ignoring one of the Auror trainees request to stop. The other Auror, his training partner, stopped him from continuing to call out to him.

He found his partner in the archives, reading the trials of the Death Eaters who had successfully claimed Imperius and making notes to keep track of them.

"James!"

He looked up and smiled. "Yeah?"

"Did you tell their godmother?"

His smile fell away. "Oh... FUCK!"

The Archivist looked over at James indignantly and hissed, "Quiet!"

He left the documents where they were.

"She's insanely powerful," James said nervously. "The fidelius is probably a minor annoyance to her."

"Are we going to summon her? It's winter still, won't she get annoyed?"

"I don't know. She didn't really ever like me."

He sighed and took out his notebook, flipping to the pages Lily had added to the little book. "I solemnly swear I'm James Evans," he muttered to Sirius's snickers and coughed "Whipped."

James glared him into submission and flipped through until he found the section on the twins' godmother, the Lady Summer of the Seellie Court of the fae[18].


A/N: Faves/Follows are great but reviews are a lot more important. And reviews that are substantive are even better. Single word reviews or 'wriet moar' reviews just aren't helpful for the creative process. Nanettez's review asking questions? Very useful. Gave me a reason to write more about his mother-in-law and father and their friendship (which will happen next chapter likely).


1: The IMC and the ICW are competing international organizations. While the IMC is older and holds a number of presumptive rights such as allowing Honor Duels, Blood Feuds, and authorizing the creations of private armies which are all prohibited by the ICW, the ICW has a broader purview and is where the laws are made that are followed the world around-save for China which refuses to participate due to political indoctrination by Wizards who had been loyal to the Communist party[2].

2: Cho's and Sue Li's families will likely be from Hong Kong, the last bastion of noncommunist chinese magicals and both will be the children of ambassadorial staff or they'll be escapees from the communist hordes.

3: Clan Potter: much like the lordships I so hate in most fics, he's the head of an old family. The clan chieftain of Clan Potter, one of the few predominantly magical highland clans. Though they now live amongst the Sassenachs and are more Welsh than Scottish, they keep to the old ways.

And like in the fics I so despise, it is mildly important BUT Harry won't be some mary-sue who all of a sudden knows exactly how to manipulate the wizengamot to get his way. No, the importance of this is only that it gets Somerled onto the Lords's Wizengamot and makes Harry's proper title Master Potter or Sir because Harry is the heir-presumptive (Somerled doesn't expect to die until his grandson is about fortyish which would make him the better choice than his son since he'll be sixty-ish.

Somerlet Potter is also the extant holder of a scottish barony, specifically the one attached to the castle that resides at Glenbogle, one of the family's vacation homes.

4: Everyone has long hair! At least they do if they're a head of family. I know it's a bit cliche but it's one of those cliches that I like. Does absolutely nothing for the story but I find it amusing.

5: Don't worry, Tonks will rebel soon enough. Right now she's seven and still Daddy's little angel and Mummy's bestest friend.

6: I am not homophobic. Sirius might be. Haven't decided yet. He might be for a bit but probably not. he's just angry about a cousin he used to like having had her personality changed.

7: I'll use cousin and uncle fairly interchangeably when it comes to how Tonks addresses Sirius but technically, he's a cousin. Ugh, and I just looked at the Black family tree. Sirius's parents are a LOT closer related than I assumed they were. Poor Sirius.

8: Ahh, foreshadowing.

9: Instead of there being two alleys connected, I'm redoing Diagon Alley and Knockturn Alley as two of seven alleys in a heptagon shape, each side 7777 feet long.

In order, they're named:

Diagon

Encaustic

Factic

Runic

Odic

Cabalistic and

Knockturn.

Inside of area created by the alleys is approximate 220 million square feet of building space with increasingly smaller heptagons with a distance of 1000 feet apart until the last heptagon is 777 feet a side. Another heptagon is inside this one, this time a park with 77 feet per side (if someone can do the math on this for me inverting the heptagon each successive one, I'd love to see how much space each block has).

Why DEFROCK? It's the most amusing word I could find starting with D and ending with K. I will probably redo the alley names.

10: That's another thing. There's only one all magical village in all of England? Makes no sense at all. So in this AU there will be one in Scotland(Hogsmeade), possibly two with the second on the border of Scotland|England. One in Ireland (becoming two) that eighty percent of the population will be moving from the north to the south during first/second year of the kids. Wales will have one situated near Southerndown which is near where the Bones live. And England itself will have three. The Potters have one all to themselves, situated in Nottinghamshire. Actually, all of Nottingham is a magical village though there are a number of mundanes in the many villages or cities in Nottinghamshire, the families of magicals who are affiliated with the potters in some way. Nottinghamshire contains the majority of the industry[11] of the Potters though their agricultural fields are worldwide. The second is Diagon Alley's. And the third will be probably mentioned eventually somewhere, probably on the Isle of Man.

11: The Potter industries (In the series we learn that he inherits a fortune though we only ever see 12 Grimmauld and a significant amount of coinage in his vault(While the trust vault has become a bit of a cliché, I plan to use it myself)) consist of supplying 92% of all foodstuffs grown for the magical community, 87% of all alcohol production, 88% of WORLD silver production, the only captive thestral breeding program (in the series, Hagrid/Hogwarts is the only place to have tame thestrals, in this AU, the Potters are where they get them), breeding of other equines (Magical and mundane), mundane horse racing and breeding, A newspaper, part ownership of the Wireless Network, the eventual visual network, Harry's eventual occupations, backing hermione's idea, the moneymen behind the weasley twins, the moneymen behind neville's and daphne's venture, and a number of muggle ventures via gringotts[12].

12: In the series, they say Gringotts in Diagon Alley is the only bank[in england?]. Makes no sense at all. Having branches in each of the magical villages with the main branch being in London makes much more sense. Of course, if you factor in the fact that you're giving creatures you're constantly fighting beachheads in each of your villages(and why would you give an enemy you DEFEATED control of your economy? The goblins must have WON the last war!), it makes sense to have only one central location for them (especially since in canon EVERYONE can easily apparate[13] to Diagon alley or call for the bus or take the floor or fly there if they can do the disillusionment hex). Nonetheless, branch offices, all connected underground.

13: Magical transportation is going to be different in this. Brooms, the same. Floo, kinda the same, just a different dialing method. Apparition: Very different. Only one in thirteen magical can safely apparate. Most are too weak[mentally but delude themselves into thinking its magical?] to do so. The Knight bus is the same as well only there will be more of them working at a time. Probably three.

14: More foreshadowing!

15: While we only see a few magical creatures which are common in other fantasy settings, i plan to bring the majority to this AU. (Harry and Jazmin's godmum is hella frightening!)

16: Pinky and the Brain, Pinky and the Brain, one is a genius, the other's insane!

17: Wards that can block things like apparition or portkeys or whatever are VERY MUCH fanon created but Hermione's assertion that one can't apparate out of Hogwarts essentially states that there are wards.

18: This is the first pseudo-crossover. Specifically, into Dresden Files. Harry Dresden likely won't be joining us in the HP universe but Bianca might, though it is unlikely. As much of a crush as I have on Joanne Kelly, having her character as one of Harry's conquests is amusing-and prompted upon in the Orphanage with a HP/WH13/DF crossover with Harry/Hermione/Myka/Biance smutfest-but too much trouble reconciling the disparate magics.

Anyway, while their godmother is in the Seellie court or the Summer/Good court, she's still insanely powerful, mostly despises humans, and only likes Lily because as a young girl, the witch-to-be helped the Fae when she was trapped on the Mortal plane during a snowstorm after being weakened by iron.

She asked the fae to be the godmother of her grandchildren when the fae visited on the day after the summer solstice since she had incredible power even with her weakness of the winter and iron.