Ten years after the events of Descender, technology has almost vanished from the galaxy, and magic has taken its place. A powerful vampire witch known as Mother now rules over several planets. On Sampson, Mila lives in isolation with her father, Andy, until the unexpected arrival of a small robot attracts the attention of Mother's followers. Forced to flee, Mila and Andy embark on a journey across a profoundly transformed galaxy where machines have become unwelcome. Between fantastical creatures, familiar faces from the past, and magical forces, Mila gradually uncovers the secrets of her heritage and the role she may play in the struggle against Mother.