Grandmother first appears in The High King's Tomb and in Blackveil. She is the leader of a small band of Arcosians seeking to raise the Second Empire to its former power. She is regarded as a shaman and a spiritual leader to her people.

Grandmother is most notable for her capacity to utilize powerful magic, often requiring sacrifice and blood. When using magic, Grandmother always uses yarns of varying colors as tools to focus and execute spells as well as a certain bowl to strengthen her magic.

She enlists the help of Captain Immerez to recruit and train faithful soldiers and carry out her tasks in The High King's Tomb.