Can't get quest from Ghostly Woman

After defeating the Skeleton King (for a 2nd time), I went back to clear out everywhere else I had been. I think that may be key to why this happened:
In the Cemetery of the Forsaken, I met the Ghostly Woman who had a quest (!) over her head. I talked to her, but the quest did not appear in my log or the tracker. There were no prompts on the minimap, but I stumbled my way to the Funeral Urns, and then to the crypt. The quest seemed to complete, but I didn't get any special quest completion box.
I'll have to try to locate this quest next time through Act I, and try to get it before the Skeleton King.

I'm going to roll a level 1 sorceress as soon as servers return so I'll keep an eye out for this as well. Where did you find the woman?