Ghost of Grimmauld Place (Harry Potter Fanfic)
10 parts Ongoing If Sirius Black had his way, the Black family would remain long-lost relatives he had nothing to do with, including Grimmauld Place which he managed to inherit, yet Grimmauld Place is unfortunatly a place he can easily hide as he remains a wanted man for something he didn't do.
The last thing he expected was to encounter the ghost of his younger brother, but something feels off. Or perhaps, it's just the unresolved feelings regarding Regulus' death, particularly when he's the only one able to see Regulus from what he can tell.
Disclaimer - I don't own Harry Potter. This is written for ONC 2025, prompt 19, "You inherit a house from a long-lost relative, only to discover it's haunted by a ghost from your past. How do you deal with what you once knew?"