Ayla Black? Story search

I'm trying to find a Harry potter fanfic. I'm fairly certain it's called Ayla Black, but my results turned up nothing. It's one where HP goes to the goblins, and they perform a ritual, with permission, to remove magic from HP, cast on them by Dumbles. If it's the one I'm thinking of, she inherits the black family titles, frees sirius, and reforms bella. There wad something about a private island too. Any help appreciated