City of Splendors: Waterdeep
Mysterious oracle. Used to be Grey Beast's advisor. Fled when the mad lycanthrope was killed
Few things are known about this mysterious cleric. She seems to be a masked elf with power related to the moon. She had offered her services to the Scarred Beasts and seemed to have won their trust and respect. Her motivations were unclear.
After the death of the werebadger, she teleported herself away.
When the companions infiltrated the cavern were the kidnapped nobles were kept, it was revealed that Casrah was in fact Felnarra Orkalion, a demented priestess of Selûne following powerful visions sent by the Goddess to increase the power of the Church and fight the conspirators working to bring Waterdeep under their thumb.