It's historical fact that Anne Boleyn is beheaded on May 19 1536. Except she wasn't. A carefully transfigured and charmed chair was beheaded as Anne Boleyn and earlier, a set of charmed tables were beheaded as George Boleyn and four others.
Anne has always been brilliant at charms and transfiguration but then, becoming Head Girl and Gryffindor Quidditch Captain has always been a source of pride for her. The wizarding world showed her how to be free and who she could be. It's why she kept her wand, even when she thought she wouldn't need it. It's why she teased George into keeping his.
She wishes that she could stay with Henry. She is carrying his child. His children, if her suspicions are right. And she wants to stay. But it cannot be and she knows that this child (or these children) are not destined to rule the muggle world at all.
(Just as Mary Tudor was not).
But this is how the story ends. It's not how the story starts. The beginning is a manor in Wiltshire, a happy young family and a baby girl who is the youngest Boleyn child. Her older sister Mary had shown magic when she was a week old - she'd levitated her toys from her cradle. George, the middle child had scared his nurse by flying out the window of his nursery as he'd started toddling - he'd wanted to get apples.
Thomas Boleyn likes to say that his Anne was born with magic in her eyes. Actually her magic manifests rather like her sisters - it's a few hours after she's born and her mother finds her jewels spinning in the air over Anne's cradle - Anne is laughing at the lights and colours and grabbing at the air. There's a simple gentle charm to make sure a new baby doesn't get into magical mischief without knowing it and it works well enough. They are given magical toys but are also given to understand that these are special toys, not to be shown to the other children who sometimes visit, just as 'the magic' is not to be shown in front of people who do not have it.
While there is some kinds of magic in evidence, true magic, the kind of magic that is practiced in the wizarding world is not to be thought of in the muggle world. Those who would not think it of the devil himself would likely only think in terms of how it could be used. No, better to think of 'magic' as fortune telling, astrology, perhaps some small charms. Not what it truly was. It's why they have few visitors at Hever, other than other wizarding children. It's why Thomas Boleyn has carefully planned his family gardens to hide without appearing to. The children sometimes play at Quidditch and though their brooms do not rise at all high, it is still a risk.
When Mary gets her Hogwarts Letter she is bouncing in excitement. They take the children to London (Elizabeth carries Anne, who is still a babe and George is determined to protect his little sister and stands firmly beside his mother) and Thomas finds joy in seeing Mary's delight at Diagon Alley ("May I have a cat Papa? May I?"), George's fascination with the Leaky Cauldron (let alone Flourish and Blotts) and little Anne's wide eyed delight at everything. They find Mary a wand (cherry and unicorn hair) and Thomas and Elizabeth cannot stop smiling.
They send Mary off with a maid servant and some of her friends who are starting Hogwarts at the same time (to the outside world Mary is being sent to the Netherlands to further her education and position). Mary waves from the carriage until it disappears into the distance. She writes to them not much later expressing her delight ("I've been sorted into Hufflepuff Papa - a great honour to be sure and Professor Abbott says I'll do very well at charms and oh, we are to have such games") and it helps to assuage her absence, a little, to see her so happy.
George leaves a few years later, finds himself in Ravenclaw ("I would have been just as happy in Slytherin but the hat says I delight much in wit and learning for their sake alone so it believed that I would be at home in Rowena Ravenclaw's house") and Mary is shining - she comes home full of joy. George comes home filled with the joy of spells and knowledge learned anew.
When it is Anne's turn to go to Hogwarts she comes well prepared but unsure. But Hogwarts is everything she thought it would be - they wear simple gowns, though once she is sorted her mother sends her gowns and cloaks and hoods in scarlet and gold and Anne smiles and feels glad that here, here she can be. There are more muggle borns and half bloods than there might have been, though many of the muggle borns have been carefully monitored to make sure their parents do not suspect - it is part of the magic of Hogwarts. She feels at home in Gryffindor House ("though Ravenclaw could be a home for you, Anne Boleyn, it's your passion that shines through") and finds herself thrilling to it.
Here she does not have to hide. Here witches and wizards are equal. Here she can openly learn and it is wonderful. She can carry her wand (Rosewood and Phoenix) and does not have to trouble to hide. And George and Mary are there, happy to give advice and guidance and Anne, though she misses Hever and her Mama and Papa, is happy. So very happy.
She discovers she has a particular talent for Transfiguration and Charms, though she excels in all her classes and finds herself playing Chaser and planning her future in the magical world. Anne thinks that perhaps she might become a scholar or a member of the Wizards Council - living somewhere entirely magical.
King Henry was not at all on her mind or her families. Except that Thomas Boleyn still had duties in the muggle world that could not be put aside without rousing suspicion and that above all, was something that was entirely unwanted. So he went to the Royal Court to undertake his duties there and it was then that Thomas gained royal favour and the Queen asked if his daughters would not like positions in her household as a token of esteem for his services. There was simply no way to refuse such a request, so Anne and Mary would be joining the Queen's household.
It was a difficult time for the Queen. King Henry had decided to seek a divorce, believing that the marriage was accused - after he had been presented with proof that he could bear sons in the form of Henry Fitzroy. The Great Matter had been dragging on for years now, though after the Pope had recently allowed (after disallowing it) the matter to be tried in England, conveniently ducking responsibility for pronouncing a verdict himself. But until that time, Katherine was still the Queen and a place in her household was still sought after as there was no Queen in waiting.
And so the seventeen year old Anne and her older sister Mary joined the Queen's household. Anne herself was not entirely happy about it, but it was at least, an adventure.