Hoard of the Dragon Queen
Talis the White [DECEASED]
Talis was a childhood friend of Karovan.
She disappeared many years ago, and noone knew where she was. That was until Karovan, Agar, Halmir and Eli stumbled upon her hunting lodge.
She turned out to have been turned into a cultist, and tried to strike a deal with the characters.
That attempt failed, and she died.