I can't remember the exact sequence of events but on one of my characters when I came out of that area after killing her, there had apparently been a big fight between the Tieflings and druids outside and everyone but a couple of npcs were dead. Haven't been able to repeat this on anyone else yet.
That is how i got that whole druid grove wiped for redevelopment ( haven't found a real estate broker though):
you accept Zevlors request to deal with Kagha and you don't investigate her for being a shadowdruid.
So you attack and deal with her. when you leave the cave the whole grove is at each others throats Tieflings vs. Druids.
