Elementary Calculations by kcourtkat. Pairing: unknown Summary: After finding out about his magic earlier, a decidedly non-Gryffindor Harry Potter plots his way to success.
Rec: This starts well before Harry ever goes to Hogwarts, and Harry is a lot smarter and more driven. It's not a do-over, but a redux, and I'm curious as to how far from canon framework it'll stray. We've already seen in the available nine chapters that Harry is decisive and unafraid of strange things, nor of strange new circumstances. He's also not afraid to speak his mind and challenge people. I'm interested to see just how this one plays out.