I'm looking for a Harry Potter fanfic I read a while ago on an Archive of our Own.
I remember a scene where I think Hermione (or Mrs Weasley?) scolds Harry for being in Grimmauld's library saying it's dangerous and he wasn't allowed. Harry replies that as he is Lord Black and head of the house, she has no right to tell him off and in fact she's the one who should keep out of it since most of the books would curse her.
And I think it's a Tom Riddle(Voldemort)/Harry Potter pairing?
(It's not The Power of a Well-Organized Mind by FalconLux)