Demetria was a Dryad that resided in the Oldwoods, and Versi's half-sister.
She was sent mad by the death of another of her sisters at the hands of the Dragonlords over 500 years ago. Her sister's tree was then used for the figurehead of the Ultros, and Demetria has hated the settler races ever since.
In the present day, working for Lutheria, she lured a number of Estorian teenagers to the Mossy Temple with plans to turn them into Maenads using deprived rituals. She also had the Horn of Balmytria stolen from the Dragonshrine in Estoria.
She died at the hands of the Oracle's Chosen, who came to save the captives and reclaim the horn; but not before she could bestow upon Alke her first death.