Dune #5 Heretics of Dune Frank Herbert

Book five in Frank Herbert's magnificent Dune Chronicles--one of the most significant sagas in the history of literary science fiction.

Leto Atreides, the God Emperor of Dune, is dead. In the fifteen hundred years since his passing, the Empire has fallen into ruin. The great Scattering saw millions abandon the crumbling civilization and spread out beyond the reaches of known space. The planet Arrakis-now called Rakis-has reverted to its desert climate, and its great sandworms are dying.