Navigators Of Dune by Brian Herbert

Set in the aftermath of the Butlerian Jihad, the novel traces the emergence of the Spacing Guild as engineers, merchants, and mutated humans race to master spacefolding while confronting an addictive dependence on melange, rival political and commercial factions, and the lingering threat of machine influence; through secret experiments, personal betrayals, and high-stakes maneuvering, the story shows how navigators are created and empowered and how their rise reshapes interstellar politics and sets the stage for the later eras of the Dune universe.

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