Incarceron -- a futuristic prison, sealed from view, where the descendants of the original prisoners live in a dark world torn by rivalry and savagery. It is a terrifying mix of high technology -- a living building which...Incarceron -- a futuristic prison, sealed from view, where the descendants of the original prisoners live in a dark world torn by rivalry and savagery. It is a terrifying mix of high technology -- a living building which pervades the novel as an ever-watchful, ever-vengeful character, and a typical medieval torture chamber -- chains, great halls, dungeons.