Title: The Arithmancer Author: White Squirrel Rating: T Status: Complete Library Category: General Pairings: Hermione/George , Harry/Ginny Summary: Hermione grows up as a maths whiz instead of a bookworm and tests into Arithmancy in her first year. With the help of her friends and Professor Vector, she puts her superhuman spellcrafting skills to good use in the fight against Voldemort. Years 1-4. Sequel posted. Link: https://www.fanfiction.net/s/10070079/1/The-Arithmancer This is a two-parter, a single story spread over two fanfics. Specifically, one follows Hermione from years 1–4, and the other follows her from 5–7. The premise is pretty simple: Instead of an all-around bookworm, Hermione is a math prodigy, and she tests into Arithmancy her first year (Arithmancy is about spell creation and manipulation, done through math). The overarching theme can best be described as, “Hermione weaponizes math.” The story ends at the end of fourth year. The story is completed in “Lady Archimedes,” by the same author. As the war begins, Hermione gets into more and more complicated projects, using math and muggle science to guide her spell-making efforts.