*sob*... Pixie, my cat, she was playing close to the waterfall and slipped... *sniff*... I hope she's all right.
Drienne is a girl in the Dryad Falls area east of Gnoll Stronghold. She is standing near the top of the falls at co-ordinates 2080, 2960. To reach her, you have to approach from the west side and walk under the falls. Talking to her starts the quest Drienne's Cat.