Old Spander Fic

[http://users.livejournal.com/_sharvie_/]

I'm looking for a pretty old spander fic where somehow Spike, Xander, Giles, and I think Dawn end up in another world or underground. There's a city underground with layers, the higher up you go the better off you are type of thing. And Spike is in charge of the group. I remember towards the end there is something to do with a murieal on the wall...something about something in it. I can't really remember much of the plot, I think there might have been a Xander double running around for a bit wrecking havoc, and something about trying to sneak back home through a portal cause the leader of this other world brought stuff back and forth. There were Roman style baths and different demons in charge of different levels.....Spike and Xander had a pretty off again on again relationship with much angsting. I don't remember it being finished, the fic is loooong, so it could still be a WIP.

Thanks.