Heretics of Dune by Frank Herbert

Set several thousand years after the events of “God Emperor of Dune,” “Heretics of Dune” introduces a new era of the Dune universe. The story focuses on the planet of Arrakis, now renamed Rakis, and the power struggles that emerge as the planet’s significance and resources remain pivotal. Key characters include a group known as the Bene Gesserit, who are trying to navigate the shifting political landscape, and a mysterious new faction, the Honored Matres, who are in conflict with them. The novel explores themes of change, adaptation, and the consequences of historical legacy as new forces and ideologies come into play, reshaping the dynamics of power and influence in the universe.