Hello all!This is a super old fic and my memory is extremely hazy but i'll give it a go.
Its a slow burn fic and last i recall it was a WIP and ended in a really dramatic spot. Its completely AU.
The premise is that Buffy and Spike (possibly William) are trapped on this estate together having been both named in the will of the person who dies as possible beneficiaries. I think the estate is in the UK. I don't remember either of their relation to the deceased but in the will there's some kind of little competition basically. Something like whoever leaves the estate first looses and the remaining person inherits it. I think. And they both really want it despite starting out hating each other. I don't remember if it was Giles who died or Giles who is the executor of the will, or possibly Giles the butler, but I think he's a minor character checking in.
Since neither of them will leave they are forced to deal with each other on this estate (might have been the plan of the deceased all along mwahahaha.) I don't remember what Spike does but I think Buffy is a jeweler and she has made one of the small cabins on the estate her temporary studio. I know she was working on some kind of MAJOR beaded necklace with exquisitely detailed work that I think spike creeped on (she was pretty private) and had the thought that she somehow managed to captured fire in precious and semi-precious stones.
Last I read (which was really forever ago... like possibly more than 1.5 decades ...) her necklace had just been ruined in an act of sabotage. She was devastated and spike was enraged and they couldn't figure out who had done it.