Disclaimer in Chapter 1. Will change if needed.
A week later Harri woke up in a good mood. Despite having to deal with the Dursleys again and the constant slow leech of the glamours on her already bound magic, she was looking forward to this second chance. She had managed to swipe a journal from Dudley's discarded present pile and, using her now mastered occlumency, she went over all her memories and outlined all the events of the next seven or so years before starting to write out plans, a list of things to research, and a to-do list. Today though she knew her Hogwarts letter was going to be in the mail.
She got out of her cupboard before Petunia could pound on her door and started up breakfast. She went about the chore happily, thinking of the first plan she would be able to enact as soon as the letter arrived and her fat useless cousin went out for the day. She ignored the snide comments from the elder Dursleys and simply set out the perfectly made breakfast before sweeping out into the hall to retrieve the mail that was just slipping through the slot.
She picked it up and just managed to send her letter into her cupboard with a flick of her wrist as Dudley came stomping by, shoving her into a wall. Harri shook it off, not allowing the pig to ruin her good mood, she set the mail next to Vernon's plate and went into the kitchen to do the dishes. All the while she kept an ear out for Dudley's announcement that he was leaving to go meet his friends.
It wasn't until a good half hour later that Dudley left whilst Vernon and Petunia were still in the dining room. Sensing her chance, Harri let her glamours fall and with a small wave wrapped the table in secrecy and containment wards, thankful that she had mastered wandless warding that didn't take up too much power in the war. She quickly dried her hands and walked out into the hall to retrieve her letter. She opened it and read until she heard a squawk and an enraged shout of "Get in here freak!"
Harri sauntered into the room and channeled her older sister Natasha as she settled into a hard emotionless stance at the head of the table. "You called." She said in monotone.
"You little freak!" Vernon snarled, "What did I say about your appearance? And what the hell have you done to us? You stop this freakishness right now!"
The room went cold in an instant and Harri felt Glacia shift in her mind in anticipation, "I will not stop anything. What I have done and will do is nothing less than you deserve, you vile man."
"Now see here!" Petunia began.
"Do be quiet." Harri interrupted, "I won't release you until you shut up and pay attention."
"Why you filthy little..."
Harri waved her hand and ice covered Vernon's mouth in the next instant. "I said quiet Uncle." Harri snapped, her eyes hard, "You will be quiet and listen or I will allow that ice to cover your nose, cutting off your air until you pass out, then I will wake you up and we will begin again. Understand?" Her eyes never wavered from them, taking immense pleasure in the fact that both had paled and were staring at her with fear filled eyes. They both nodded slowly.
"Excellent." Harri said before tossing the letter on the table. "I'm sure your both aware of what this is and how it is that I produced the ice and kept you in place." Harri settled into her lecturer mode and began a slow ambling pace. "You would call it 'freakiness', the correct term of course is magic." She smirked at them, "As you can see I am well aware of what you have kept from me, about both my parents and my true nature. What you may not know is that I am also aware of why you have kept me in this house despite all of your bitching about how you should have drowned me or left me on the doorstep or dropped me off at some orphanage. I am aware that you aren't doing it out of Christian duty or the kindness of your hearts, you are in fact doing it because you are greedy, sadistic, entitled assholes."
Vernon tried to scream something behind his mask but froze when he felt the ice creep into one nostril, Harri gave him a condescending smile. "I thought we had an understanding dear Uncle." Terror filled his eyes and she smiled again, "Good boy." She cooed, she tapped her chin thoughtfully, "Where was I? Oh yes, greedy, sadistic, entitled assholes. I know you are getting paid to keep me here and treat me as you do. I know that instead of being decent human beings you agreed to treat an innocent child as such. Oh yes, I know all of that." Her eyes flashed with power and the feathers in her hair ruffled, "Now time for you to learn some things."
She drew herself up and brought a graceful hand to her chest, "I am Harriet Rose Potter but the people of my world know me better as the-girl-who-lived, the savior of the wizarding world, the chosen one. What even they don't know is that I am also the heir to several Ladyships. This gives me a lot of power in both the magical and mundane communities."
"Why am I telling you all this you ask? Well, this letter marks the end of my time with you for this year as I will lodge either in one of my many estates or at one of the hotels in the magical alley. I will have to stop in for a month next year however that will be the last I have to do with you. You, however, will continue to pretend I stay here during the summer until my seventeenth birthday." She smiled sweetly at her relatives who both had apparently recovered from their fear enough to sneer at her. "Of course you won't comply without reason. So I guess I must persuade you."
Harri's sweet smile turned into a demonic smirk, "The money you are being paid with is from my accounts. Even if you yourselves were not aware of that fact, I am well within my rights to stop all payments and claim the total amount you took all at once. Since I'm sure that you currently don't have near that amount, I could legally seize all of your possessions to sell and make up the rest of the amount. Which would put you two and your precious Duddikins out on the streets." Both adults had gone deathly pale, "There is also the matter of your treatment of me. An heir to several wealthy houses. I am well aware that when it has been reported in the past it has been covered up, however that has been with the regular police. I will take my case to the aurors, who are not as easily waylaid. Which would mean that more of my kind, would storm this place and drag you out in cuffs. Which would ruin your so far spotless reputations with the neighbors." Harri eyed the muggles carefully, "I'm sure you understand your predicament now correct?"
"I-if we do-don't prete-end you still li-ive with us u-until y-our sevente-eenth birthday you-ll ru-uin us." Petunia stuttered.
Harri smiled brightly, "So glad you understand." She put an innocent look on her face, "I really don't think I'm asking much. All you'll need to do is turn people away should they come asking for me and the rest of the time you'll finally be rid of me. In turn I'll allow you to keep your ill-gotten funds and your reputation. Do we have a deal?" Petunia was quick to nod her head in agreement but Vernon held out, Harri narrowed her eyes at Vernon which made the ice over his mouth tighten. "Dear uncle, there is no way out of this. Even if you were to do something foolish like clear your accounts and run we freaks have ways to find you. Ways that even fake I.D.s and falsified records can't beat. You also cannot simply tell the one who ordered my treatment about this either." she concentrated magic in her hand and used it to knock physically on the wards which rippled around them as visible domes, "These are secrecy wards. If you attempt to tell anyone, intentionally or unintentionally, they will cause you a great deal of pain until you either do the right thing and stop talking or you pass out."
Harri gave a dry laugh at the sight of Vernon's fear, "So again, do we have a deal?" Vernon nodded resignedly, Harri picked up her letter and smiled, "Very well. I need only write a reply for this then I will not see you again until next year." She snapped her fingers, at once the ice broke and the wards fell. She swept over to the kitchen counter, pulled out the blank sheet of paper provided in the letter, and quickly penned her acceptance. She rolled it up and held it out the kitchen window for it to be taken by a swooping owl.
As she turned around she found Petunia standing in the kitchen, looking at her uncertainly. "Yes?" Harri prompted.
"Are you really in line for Ladyships?" Petunia asked with a small voice.
Harri smirked, "Yes, several. My father, who you classified as a deadbeat was Lord Potter-Gryffindor. My godfather, who named me his heir, is Lord Black. I am heir to Slytherin house by conquest and I am heir to the house our family originally descended before it produced squibs and was thought to be died out which is the LeFay house." She smirked at Petunia's stricken expression and stalked closer, "Just think, if you had been a decent human being and treated me as family should be treated I would have had no problem sharing all of my wealth with you. You would have lived like the Queen herself. But of course you couldn't stand anything freaky." Harri taunted before slipping past the shaken woman, grabbing her journal from her cupboard, slipping on her glamours, and leaving the house.
As she walked she felt Glacia and Godiva making happy and excited sounds as they walked away from their past and looked to the future. A future that they would change for the good of their family.