Undrella is a female harpy who moved into the abandoned village of Kelmarane in 4704 AR, where she established herself in the ruins of the tannery, treating it as her own personal lab for experiments in alchemy. When the genie Kardswann took control of the Kellish tribe of gnolls, Undrella offered herself to him as a consort, a decision motivated strictly by pragmatism and not by passion. Indifference changed to active dislike when Kardswann proved to be a cruel and abusive lover.