[Having no face was not a deterrent to Raava giving a withering glare at the human who freaked out and snapped at him.]

I am not here to harm you, foolish human. And if the bear's spirit had lingered to haunt you, it is because you deserved the reminder of your destructive nature.

[Not that the bear's spirit had actually lingered.

To Zuko, who was calmer and had answered her question, her tone returned to the more neutral demand of before.]

I have never heard of this Luceti. It is not a part of the Material Plane or the Spirit World. How did we come to be here?