Thanks
And yes, my quest had restarted itself so Karen was actually back in the Urban ruins where she originally was for some reason! I think it was because i'd started and completed a different side quest from waking her up.
I am Maybe I'm missing something? I saved Karen, we went to Sashila Village where she woke up...mumbled some incantation and then left. Is there anything I'm meant to have done in the mean time?