Chronicles of Tellus
Sister Garaele is a young elf and cleric of Tymora that looks after the Shrine of Luck in Phandalin. She is a zealous follower of the goddess of luck and secretly operates as an agent for the Harpers.
While operating in Phandalin, she had been given the mission of seeking the whereabouts of the spellbook of Bowgentle by the Harpers. However after a treacherous journey to speak with its last known owner, Agatha, the banshee would not appear for her.
After the arrival of the Deitouched in Phandalin she took note of their capabilities and tasked them with speaking with Agatha on her behalf, albeit this time with a silver comb to trade with.