Granny IceTooth

Eldest of the three sisters in the family portrait Helena saw while banished into Dirtha's shack — "absolutely 10/10 ethereal light blue skin goddess," by Helena's appraisal. Hair tumbling in frost. Dress and chair rimed in cold. A motif of winter that surrounds her like an aura.

A hag, presumably, of the same dread line as Auntie Dirtha Bonebender (Imetka) and Mother Malice.

At the Pyramid: When Helena lifted Dirtha's bone deck from the sand after the hag's defeat, the chamber chilled and the floor sand grew wet underfoot. Granny IceTooth stepped through the wall alongside Mother Malice. Neither sister so much as glanced at the party. They walked to the heap of sand where Dirtha lay, watched Mother Malice swallow the body whole, and vanished.

Her interest in the party — if any — is unknown. Her interest in Helena, who took her sister's deck, is a question for another expedition.