"Children or Dune" by Frank Herbert

Intrigue and never-ending jockeying for power are abundant in this chapter of the Dune series. Leo and his sister Ghanima are a pair of 9 year old bodies with access to millenia of experiences. Their aunt Alia holds their throne as regent but even as she struggles with the idea of relenting power, she gives in to temptation and allows her recently killed and deposed ancestor Baron Harkonnen to take root in her mind, controlling her thoughts and emotions. Jessica has her own machinations as she has been folded back into the Bene Gesserit faith. The preacher, who may or may not be Paul Atreides, is causing a stir in the imperium and Farad'n, nephew of the emperor that preceded Paul Atreides has ambitions of regaining the throne for house Corrino. Gurney Halleck, Duncan Idaho, Stilgar all play important roles as the story weaves to it's conclusion. Once again, the story is an allegory for so many aspects of culture. Arrakis is into it's transformation from desert planet to a rich and lustrous climate. Powerful monopolies and governmental oversight groups wield power through dangerous and morally questionable ways. This portion of the Dune series brings it full circle back to rooting for the righteous protagonists.