A/N This is my first fanfic so I would appreciate any constructive criticism and feedback. While the starting point of all this change is simply that Sirius accepted the blood supremacy he was raised to believe in, my plan is that this will cause a great deal of change in the Harry Potter universe, as evidenced by my rather short prologue, which served more to set the scene and pave the way for future exploration of James Potter's time at Hogwarts, depending on the success of this fanfic. But I digress, please read, review, let me know where I could improve and what you enjoyed about this chapter but really the whole thing once I get round to writing more of it. Thanks!

Grimmauld Place
31st October 1981

Druella Black stood as a silent guard in the doorway of the nursery, peering inside she could see two young boys who slept silently, one with jet black hair the other with blonde. Both boys were not Blacks but of Black blood and as their grandmother Druella would protect them till her final breath. She thought of the strange series of events which had brought them to this night, ever since James and Lucius had exposed Voldemort as the half blood he was, many of the pureblood families refused to support him, this of course made the two men targets and over time brought them closer together. Now both their sons slept silently under the same roof, while the parents tried to lure Voldemort far away. Her train of thought was suddenly broken by the appearance of her husband behind her. "My dear you must go to bed, it has been an awfully long day"

"I know Cygnus, but I cannot stand the thought of our daughters out there with that filthy half blood chasing them and what if he decides to punish the boys instead? I will not let any harm befall my grandsons" Druella's tone left no room for argument, a fury burned in her tired eyes, one her love knew he could not quell with ease.

"The house is under the fidelius, all is going according to plan. Lucius and James are good men, they will not let him hurt our daughters. If for whatever reason we are needed however we must be rested and ready" he adopted a sympathetic tone, one which he hoped would help her to relax.

"I'm afraid my love, our family has never been this close to destruction before. The half blood lord has already killed too many of us out of revenge, if Sirius does not marry soon I fear he too will fall before producing an heir. No the boys must be protected, only then will Black blood continue to further generations" Cygnus began to realise that there would be no swaying her, but there was an alternative.

"perhaps I could watch over them for a few hours then, just while you get your strength back" Druella remained silent for a moment before letting go of her pent up emotions.

"very well Cygnus, only for a few hours then. Goodnight my love" Just as the two closed, ready to embrace, a sudden crash reverberated throughout the house. Like a tidal wave a gust of air pushed its way up from the ground floor, candles winking out as it went and then silence reigned over the old home. Every few moments the relative peace would be cut by the creaking of wood, steadily growing louder. There was no mistaking it, he was here, they had been discovered and he would stop at nothing to kill the boys as punishment for their fathers sins. Wordlessly, Cygnus drew his wand, took one final longing look at his wife and began to descend into the darkness. Once her husband was gone from sight, Druella waited but a moment before retreating to the nursery, looking around she saw that the two boys still slept peacefully but once again that peace was shattered for the briefest of moments.

"Avada Kedavra!" a sickening voice pierced the building, filled with hatred and malice but tempered by years of control. The sound of that voice was terrifying and only seconds later did she realise what it had meant, her husband was no more. Druella proceeded to lock and curse the door, the sole barrier remaining against death. Once again she flicked her eyes between the infants still sleeping silently, their innocent expressions fuelling her fear and loss into righteous anger. Suddenly the door bust apart, the sound serving as the catalyst for the boys to begin wailing endlessly into the darkness. A hooded figure seemingly flowed into the room thrusting her wand forward Druella attempted to cast the darkest curses and hexes she knew, but she was no fighter. With a simple flick of his wand she found herself disarmed, she barely heard his next words as the cries of the two young heirs drowned it out but the last thing their grandmother saw was a pair of grotesque red eyes and a sickly ball of green. The creature slid further into the room, grinning like a madman as he gazed down upon the first child. Once again he pulled his wand up taking aim at the one year old.

From the outside of his childhood home, Sirius Black saw an all too familiar green light emanating from within the house, fear struck him and with his wand drawn he proceeded into the house. He would rescue the boys and then he would make the traitor pay in blood.

Black Manor
29th July 1991

Once again Harry had the same vague dream. He had dreamt it regularly since he was a young boy, a familiar looking man and woman were protecting him, and then a monster came and killed them both. Of course he knew the truth but that didn't stop the nightmare from terrifying him every time he had it. Pulling himself up and reaching for his glasses simultaneously, the world around him briefly had the same blurry look as the memory of his dream had. With his glasses on however it was revealed that he lay in his rather large four poster bed in Black Manor. Like the rest of the ancient house, his room had a dark look to it, the few bright colours that did exist stood out sorely and clashed with the Georgian design. Looking over the side of his bed as he did every day Harry encountered his house elf, he had been a gift after Harry had first used his parselmouth abilities "Dobby, fetch me some robes for the day and some water immediately"

"yes master" the house elf, as always looked thrilled that he was able to serve his master, even in a small capacity. Dobby was unusually intelligent for a house elf, but lacked the rebellious nature that often came with such a trait, instead perfectly happy to serve his young master and the family so long as he was responsible for his own punishments. With a soft pop Dobby departed, returning briefly with a glass of water which Harry sipped graciously. For a moment he considered going back to bed and neglecting his lessons on genealogy and politics with his great-grandfather Arcturus Black, who had insisted that he and his cousin Draco be ready for when they go to Hogwarts in September. Before he could take his glasses off however, his door was opened to reveal a woman in expensive yet practical robes, the same jet black hair as his own and strong regal features resembling those of the couple in his dream. "Harry I do hope you are getting up, your father and I wish to talk to you before your lessons begin"

"yes mother" Harry dutifully replied.

Any prospect of additional sleep was shattered by his mother's request. She left after giving him a small smile, only to be followed by the arrival of Dobby with his robes for the day. Soon he would be turning eleven and getting his Hogwarts letter, naturally he would be a Slytherin and do his upmost to uphold the family name against mudbloods and blood traitors. Of course he had never met either but from the descriptions given to him by many of his relatives they were really quite horrible, secretly he was somewhat excited by the prospect of a challenge even if their reputation may have been exaggerated by his blood. Harry had a good life with a good family, but had experienced little beyond that, in only a few weeks that was all going to change. But for now he had to see what it was his parents, James and Bellatrix Potter, wanted to talk to him about.