God Emperor of Dune (Dune Chronicles, Book 4);

Book Four in the Magnificent Dune Chronicles€"the Bestselling Science Fiction Adventure of All Time

Millennia have passed on Arrakis, and the once-desert planet is green with life. Leto Atreides, the son of the world€s savior, the Emperor Paul Muad€Dib, is still alive but far from human. To preserve humanity€s future, he sacrificed his own by merging with a sandworm, granting him near-immortality as God Emperor of Dune for the past 3,500 years.
 
Leto€s rule is not a benevolent one. His transformation has not only made his appearance inhuman, but his morality. A rebellion has risen to oppose the despot€s rule, led by Siona, a member of the Atreides family. But Siona is unaware that Leto€s vision of a Golden Path for humanity requires her to fulfill a destiny she never wanted€"or could possibly conceive...