An old woman lived alongside a young woman in a cottage in Dalek-occupied Bedfordshire in 2150. They made clothes for the slave miners who worked at the mine which was mining away the rock so that the Daleks could pilot the planet as a ship.
Susan and Wyler came to their cottage looking for shelter but the two women betrayed them and told the Daleks of their existence. (NOTVALID: Daleks' Invasion Earth 2150 A.D.)