Dystopian AU?

[aseaoftroubles.livejournal.com]

I can't remember what exactly the cause was, but the apocalypse had finally succeeded, and Buffy, Angel and Dawn were surviving together. Connor joined up with them later on. I know there was a scene involving either an underground pool or a hot spring or something, and it was a big deal for them to have water to bathe in. Definitely a Bangel fic, though I'm fuzzy on a lot of the other details because I'm afraid I might be confusing it with other fics I read around the same time.

(There was also possibly a scene involving Angel feeding on one or two morally corrupt people, but again, I could be thinking of a different story.)