When the post-human Next suddenly re-appear in a solar system that banished them, humans are threatened. Their reactions vary from disgust and anger to yearning to live forever like the powerful Next, who are casually building a new city out of starships in the heart of the re-wilded planet Lym. The first families of Lym must deal with being invaded while they grapple with their own inner fears. Ranger Charlie Windar is desperate to save his beloved...