"Partially." Sirius grimaced again. "The biggest problem I can see is actually the prophecy's Boy-Who-Lived crap."

"Yeah, I don't like that."

"Unfortunately, you don't have a lot of options there. You either put up with it or…"

"…or…?" Harry squinted at Sirius.

"…or you become a girl. Look." He held up a hand. "The prophecy clearly states 'he'. If you were a girl, it automatically negates the prophecy. No more Boy-Who-Lived."

"A girl?" Harry yelped. "You want me to… what exactly?"

"I'm not saying I want you to do anything, pup, but it is an option." Sirius held his hands out. "Just one option. The new name thing is far more important, though."

"Yeah, it is. If I went for the conversion thing, why can't you? You could be my father?"

"Problem is, pup... Dumbledore's going to have the Aurors looking for a father and son, the minute that he realises that you're gone." Sirius said and Harry's mind instantly thought 'he won't be looking for a father and daughter, though'. "Maybe if we changed our ages…?" Sirius muttered to himself. "…or had access to a time turner…"

Harry snorted. "I can get one of them."

"One of what?" Sirius jerked his head up.

"Time turner." Harry smirked.

"You can get your hands on a time turner? You're not joking? Really?" Sirius' jaw dropped in shock.

Harry laughed. "Hermione's got one, she's been taking every class she can and using it all year. McGonagall got it for her."

"How far does it got back?"

"I dunno. Eight to twelve hours, I suppose." Harry shrugged.

"Nope, not good enough. We'd need to go back weeks, months preferably. Bugger. Unless that Room of yours can make one?"

"Oh, sure it can, but I can't take it out of the Room…" Harry paused. "Unless…" he hummed in thought. "Unless there's one already in the lost and found Room."

"Lost and found Room?" Sirius asked.

"One aspect of the Room is a massive junk room, every item that's lost, found by the elves or thrown away, here at the school goes in there." Harry answered.

"And how can you find out?"

"I'd have to change Rooms and that means, I'd have to leave the Room while it reconfigures itself."

"How long does that take?"

"Thirty seconds to a minute, or thereabouts." Harry shrugged.

"Great, do that and then we can hash out a few more ideas." Sirius ordered. "Oh, I don't suppose there's any wands there?"

"Not up here, but there's a lost wand room on the third floor, just opposite the DADA classroom. We can raid that later, if we're doing conversions, what fits now, might not later." Harry replied as he left the Room. "You gotta be quiet while I ask the Room for a different configuration." He warned. "I need the Room of lost things, I need the Room of lost things, I need the Room of lost things." Once the door appeared, he wandered in, closely by Dobby, who was levitating a tray of sandwiches and a pitcher of liquid. "Find a table and put that stuff down, Dobby." The elf nodded and proceeded to do that. "Great, thanks. Can you take half of this to Sirius… oh and a couple of dead ferrets for Buckbeak?"

"Dobby can. Dobby will." Dobby nodded energetically and popped away, only to appear at Sirius' side with a plate of sandwiches and another pitcher, in the background, Harry could see Buckbeak snatch up a ferret from a pile of furry things that appeared beside the hippogriff.

"Find the time turners, pup." Sirius' voice said from the mirror in Harry's hand. "Ooh, you're's good, Dobby. I do like chicken sandwiches." Dobby blushed bright red and popped back to Harry's side.

"Dobby is the best, Siri, the absolute best." Harry was so proud of the little elf and rested his hand on a skinny shoulder. "Gimme a second." He closed his eyes and concentrated before opening them and speaking. "Accio time turners."

Three chains with their delicate hourglasses flew towards him, as did a pair of boxes, one larger than the other. Dobby held out a hand and the flying items came to a halt in front of them. Harry, let all five items settle to the floor in front of him before he opened the two boxes and Accio-ed out the time turners that he knew were in them.

"How do I work out how far they'll turn?" He asked Sirius.

"Gold go back hours. Gold with platinum etchings, go back days. Platinum go back weeks. Platinum with gold etchings and a diamond hourglass, go back months." Sirius answered.

"Months are the furthest back we can go?"

"Yeah. But we can use multiple turners. Turn back the months on a diamond turner, the weeks on a platinum turner, then the days on a gold and platinum one."

"How far could we go back?" A brief thought of saving his parents entered his mind.

"Ninety-nine months, ninety-nine weeks and ninety-nine days would makes it…" Dobby's was the one to answer. "The fifth of January 1984."

Harry sighed. "No saving mum and dad…"

"No, pup, that was never going to happen. First rule of time turners, you can't change something that you know has already happened. Otherwise, I would have done that instead of going after the rat." Sirius shook his head.

"Awful things happen to wizards who meddle with time…" Harry repeated Hermione's warning.

"Exactly." Sirius nodded. "We won't be meddling, not really."

"Right, gimme a minute to check…" Harry carefully separated the time turners into their different types. "Right, we've one monthly, one daily and three hourly. No weekly turners." Harry turned to Dobby. "If we used the monthly and the daily turners, how far back can we go?"

"Ninety-nine months and ninety-nine days is… 27th of November 1985." Dobby obediently answered.

"Is that far enough for you, Siri?" Harry asked.

"I can work with that. We'd need to de-age both of us a bit, too."

"What if we didn't turn all the way?" Harry asked.

"What do you mean?"

"What if we picked a later date and only went back that far?"

"Oh, I see… Yeah, that'd work better, instead of just going the maximum, we could plan when we end up." Sirius nodded. "And add in a blood conversion? Yeah, that would work well."

"But would I still look like me?" Harry wanted to know. 'If I was a girl, it wouldn't matter.' He thought and shook his head to get rid of the idea.

"You might. Kinda depends on the conversion. If your new parents resembled James and Lily, then there's a good chance you'd look similar."

"Enough to be recognised?" 'I wouldn't be, if I was a girl.' He refused to think any further on the subject.

"Maybe, but we should be able to make a few changes."

"Can we run a few simulations?" Harry asked.

"Simulations?" Sirius asked. "How?"

"Get the Room to predict the changes and show us an image." Harry replied.

"Ooh, pup. That would be… yeah, let's do that." Sirius nodded quickly. "What do we need do?"

"First… Will you be my father?" Harry asked shyly, ducking his head.

"I'm already your godfather, of course I'll be you father, you shouldn't have to ask, kiddo." Sirius huffed.

"Then we need to find new parents for you." Something occurred to Harry. "Hey, you can get rid of the Blacks."

"Hmm… I'd need to empty my vault first, I'm not letting the Ministry or Narcissa get their hands on my gold."

"Got your key?"

Sirius shook his head. "Not on me, no."

"Can you send Dobby to get it?" Harry asked. "If he had your key, he could empty the vault. Oh, and mine, too."

"That's a lot of money, pup." Sirius warned.

Harry smirked. "It is. Plus, I have most of the Potter money from our world and half the Black money, too."

"Half?"

"I left half of it for Moony and Tonks' son, Teddy." Harry shrugged.

"Ah, right, good." Sirius didn't want to think about a dead Remus, it made his heart hurt. "My key's in the shack, I always kept it there when I had multi-day shifts. Dobby? If you take me there, I'll get it and a bottomless pouch to put everything in."

Dobby looked to Harry. "Harry Potter?"

"Do you know where my key is?"

"Yes, Harry Potter."

"Dobby? Just call me Harry. Please?"

Dobby looked doubtful, but slowly he nodded. "Dobby can. Dobby will."

"Thank you. Can you get my key?"

"Dobby can. Should Dobby go now?"

"Yes, please. Once you get my key, go to Sirius and take him to the shack and back to Buckbeak, then you can go to Gringotts. At Gringotts, empty my vault, all except a handful of knuts."

"And Harry's family vault?" Dobby asked.

"Sirius?"

"No, I'd leave that alone. Accessing it would require a goblin presence."

"I had a goblin take me to my vault each time I've been there." Harry said.

"Yes, you would have to have a goblin escort, all wizards do, but elves don't, family vaults are the exception." Sirius explained. "As long as they have a key and the vault owner's authority, they can get through the wards on the private vaults, it's all about intent."

"Oh, okay, then." Harry turned back to Dobby. "Sirius knows more about Gringotts than I do, listen to him, he'll tell you what you need to do. Okay?"

"Yes, Harry." Dobby nodded and popped away. He very shortly appeared at Sirius' side and a quick conversation was held before Dobby took Sirius' hand and popped the two of them away. Seconds later they reappeared and Dobby nodded to Sirius and disappeared again.

"I do like your elf, kiddo."

"He's not mine, Siri, he's a free elf. He's my friend." Harry argued.

"Whatever you say, kid." Sirius snorted.

"Sirius…"

"Okay, enough with the jokes, we have work to do." Sirius took a deep breath. "Where do we start?"

"With you. If you're going to be my father, you need to do the conversion, too. That means that you need to pick new parents." Harry said.

"Well, for me that's kind of easy. I already have a fake muggle identity, Nigel P Grimm. James and I set them up while we were in Auror training. We had to make up a set for Auror work and we decided that we should also have a set each that were off-record."

"Okay, so we can flesh that out or alter it to suit. How?" Harry asked.

"I'd need to create a paper trail that your Room can set in place in the muggle world and convert into a magical one in the magical world."

"Okay… and…How do we do that?"

"Can you ask the Room for a copy of the Black family tapestry, please? I've had a thought…" Harry frowned but did as Sirius asked and shortly a long dark green tapestry unfurled along one wall. "Thanks. Now, can you walk along it, with the mirror facing it, until I say stop?" Harry huffed, but turned the mirror to face the tapestry and began to walk. He took five paces before Sirius spoke. "Stop. Excellent. I need the tapestry to include Marius Black and his descendants."

"Who's Marius Black?"

"My grandfather's cousin, he was disowned supposedly for being a squib, but he wasn't actually a squib, he just hated the family and wanted to get away from them."

"Are you sure?"

"Yeah, my grandfather told me, he was the heir when it happened and it was he that pushed for it, at Marius' request. There was a marriage contract, it was with a second cousin, but there was rumour in the family that she wasn't actually Marius' cousin but his half-sister. And yeah… it was pretty messed up and he wanted out. Grandfather helped him. Emptied his trust vault and set him up in the muggle world, changed his name and even got him magical tutors. It's where I got the idea for Nigel Grimm. Marius and grandfather changed Marius's name to Grimmley."

"Do you think he'd help?" Harry asked.

"He's dead, has been for years, but if your Room can help, we don't actually need him."

"Okay." Harry focused on Marius' name on the tapestry and slowly more names began to appear.

"Oh, that's good…" Sirius sounded impressed. "Oh, yes, we can use that. Harry ask for Jessica Stebbing's tree, just three generations will do." A second tapestry formed and names bled into being. "Excellent, excellent. Now all we need is to work out a mother for you."

"And a way to get the conversion potions to you." Harry added.

"Ah, yeah, forgot that." Sirius grimaced. "What if I broke into a wizarding house and used the floo? Could your Room make a floo that connects to the network?"

"Ooh, I've a better idea." Harry gave Sirius a slightly manic look and spun to face the piles of junk in the Room. "Accio tents or trunks with a fireplace."

"Harry?"

"If there's one here, Dobby can take it to you and I can 'Require' the Room to connect to it, you can come through that, it'll bypass all Hogwarts' wards, Dumbledore won't know you're here and I can leave with you the same way, once we're done. No-one needs to know anything." Harry grinned and watched as three tents and a half dozen trunks floated to the floor in front of him.

"Nice, pup, nice." Sirius nodded approvingly.

"So, you're going to use Marius as your father?"

"Grandfather. Look, see, he changed his name from Marius Black to Matthew Grimmley. Married Jessica Stebbing and they had one son, Patrick, who never married or had children, but he's the right age to be my father and all three of them are dead." Sirius explained. "Now we need to find you a mother. We need someone that is dead, but preferably someone that went to Hogwarts. Home-schooling is fine, but we need invisibility and having both parents home-schooled is going to attract attention, when they begin to search for Harry."

'Not if I were a girl.' Harry thought before gasping. "Not if I were already a student at Hogwarts."

"What do you mean?" Sirius frowned.

"Think about it. We're going to change my name, change my appearance, change my age and use a time turner to go backwards in time. Right?" When Sirius nodded, Harry went on. "What if I re-entered Hogwarts and was already here, as the new me, before today? Wouldn't that make it less likely that anyone would think that I'm Harry?"

"Oh, I get it… Hide in sight." Sirius nodded. "Yeah, that would work. But we still need a mother for you, someone that's also dead. And it would help if I knew something about her."

Harry pursed his lips and squinted at the wall. The Black family tapestry faded away and a smaller tapestry began to form. It held the details of Marius Black, his wife and son. Alongside this a window formed, with a multitude of small panes of glass.

"If she came to Hogwarts, does it matter if she's a muggleborn or muggle raised?" Harry asked.

"No, probably a good idea if she were, but she needs to have no living parents or siblings." Sirius said.

Harry nodded and set his mind to focus on those conditions. Muggleborn or muggle raised, that went to Hogwarts while Sirius was in his fifth, sixth or seventh year. The small panes of glass that made up the window began to fill, images fading into being. One of them was that of Lily Evans.

"Well done, Harry." Sirius grinned. Harry smiled back. As time progressed, images brightened and faded until only six were left. "What criteria did you use?"

"Muggleborn or muggle raised, that went to Hogwarts while you were in fifth, sixth or seventh year. Then dead. With dead parents. No siblings. No children." Harry answered. "That's why it started with so many and ended up with just these few. They're the only ones that match all the criteria."

"Great, put their details with them, please."

"I'm going to drop out mum and the other redhead, Siri. I think that's just too much of a risk." Harry screwed up his nose.

"Yeah, I agree, plus I remember her, her name was Gwendolyn Chambers and she insisted on being called Wenny."

"No, not doing that." Harry shook his head.

"Nope. My choice, pup?" Sirius asked. "I'd go with the fourth girl. Lauren Grant, she was sitting her OWLs the year we graduated. Lily tutored her in history of magic, Moony helped her in runes but she was gifted in DADA." Sirius snorted. "Just like you are."

"She's going to be your wife, Siri." Harry laughed and Lauren's name and her family details joined Marius' on the tapestry.

"Alright. How do we do a simulation?"