Continuation of a fantastic epic that has become a classic! Many millennia later, archaeologists find the diaries of Leto Atreides II, the son of Paul Atreides and Chani, the legendary emperor who ruled for three and a half thousand years and during this time became a hybrid of man and sandworm. The miserable remnants of the spice were under his total control, and humanity plunged into stagnation. What happened, and how did you succeed in overthrowing the immortal, invulnerable emperor? What role did Duncan Idaho, already known to readers, and the invisible people born as a result of the emperor's breeding program play in this?