Aubreyad Harry Potter AU
1. The Triwizard Tournament of 1787. Jack Aubrey is Hogwarts’ Champion; Etienne Domanova is Beauxbatons’.
2. A modern AU, set a couple of years before Harry Potter is born. Jack Aubrey has just been made a prefect, and is a Chaser on the Gryffindor Quidditch Team. His fellow Chasers are Hen Dundas (whose older brother is Head Boy), and Edward Pellew. Tom Pullings and William Mowett are Beaters, James Dillon is Keeper, and Charles Babbington is Seeker. He has a long emnity with Harte, a Slytherin boy from the year above, whose girlfriend cheated on him with Jack. His best subjects are Arithmancy and Astronomy, and he is currently going out with Sophie Williams.
Sophie is in Hufflepuff. She likes Herbology and Muggle Studies, and shows a keen skill for Charms. She has two sisters, also at the school, and a cousin Diana in Slytherin. All four of them receive regular howlers from Mrs. Williams, but Diana just incinerates hers.
Diana is a Seeker for the Slytherin Quiddith Team, and enjoys Transfiguration and Defence Against the Dark Arts. She also enjoys flirting with Jack, primarily to provoke a reaction from Sophie, or to distract him during Quidditch matches.
At the beginning of their fifth year, Stephen Maturin arrives from Beauxbatons, and is sorted into Ravenclaw. He knows little about life in Hogwarts or in Britain in general; his English is stilted and formal, but he is very good at Ancient Runes, Herbology, Potions, Defence Against the Dark Arts, and Care for Magical Creatures. He spends most of his free time in the Forbidden Forest, and swiftly makes himself very unpopular when an Orphan Bird he was trying to tame disrupts an important Gryffindor-Slytherin Quidditch match.
Christmas comes about, and Jack is reluctant to go home, because his father has just remarried. He decides to stay in Hogwarts over the holidays, as does Stephen, who has no home to return to. The two nearly get into a fight over Christmas Dinner, but Dumbledore breaks it up by telling an anecdote about a kind of magic, believed lost, in which music is used instead of incantations.
That night, Jack and Stephen bump into each other in the restricted section of the library, both looking for Daeron of Doriath’s Magical Musical Theory. The difficulty is that the book is written in Sindarin Cirth, with a mathematical musical notation, and they quickly realise that the only way they can translate it is together. Bound together by the shared interest and curfew-breaking, they decide to steal the book and move it from tower to tower to avoid detection. They begin to organise secret meetings in rooms around to school, learning musical theory. Jack is better at the practical side, and Stephen quickly becomes proficient enough in Sindarin to continue to translate the more advanced chapters. They begin to tutor one another: Jack is so good at Arithmancy that he is allowed to study the Gematria, while Stephen is bad enough at arithmetic, and Stephen helps Jack with Potions and History of Magic. He fails to help with Care for Magical Creatures. Their new friendship is threatened when Jack discovers that Stephen has fallen in love with his Potions partner Diana.
However, all is not well at Hogwarts. Outside the magic walls, the dark wizard Voldemort is gaining power and support, and within, novice Death Eaters Wray and Ledward start to target Muggleborns, particularly Stephen…







