More than 3,000 years have passed since the first events recorded in Dune. Only one link survives with those tumultuous times: the grotesque figure of Leto Atreides, son of the prophet Paul Muad'Dib, and now the virtually immortal God Emperor of Dune. He alone understands the future, and he knows with a terrible certainty that the evolution of his race is at an end unless he can breed new qualities into his species.