Arcadia "Arkady" Darell is the daughter of Toran Darell II and the granddaughter of Toran and Bayta Darell (and through Bayta is a direct descendant of Hober Mallow), and becomes famous for writing historical novels and a biography of her grandmother Bayta. At the age of fourteen, she spies on her father and his co-conspirators who are hunting down the Second Foundation. She stows away on Homir Munn’s spaceship when he travels to Kalgan to study the palace of the Mule. Lord Stettin, who is the ruler of Kalgan, initially refuses Munn’s request to study the Mule’s palace, but soon takes an interest in Arkady as a potential wife. Stettin’s mistress Lady Callia helps Arkady to escape, accidentally revealing herself to be an agent of the Second Foundation and leading Arkady to the location of the Second Foundation.