The series takes place nearly a century after the "Battle of Corrin" (#3 Legends of Dune), in which the Army of Humanity finally defeats the thinking machine armies of Omnius. 
Now, the fledgling Bene Gesserit, Mentat and Suk Schools, as well as the Spacing Guild, are threatened by the independent anti-technology forces gaining power in the aftermath of the Butlerian Jihad.





Book 1 Sisterhood of Dune
It is eighty-three years after the last of the thinking machines were destroyed in the Battle of Corrin, after Faykan Butler took the name of Corrino and established himself as the first Emperor of a new Imperium. 
Great changes are brewing that will shape and twist all of humankind.

The war hero Vorian Atreides has turned his back on politics and Salusa Secundus. 
The descendants of Abulurd Harkonnen Griffen and Valya have sworn vengeance against Vor, blaming him for the downfall of their fortunes. Raquella Berto-Anirul has formed the Bene Gesserit School on the jungle planet Rossak as the first Reverend Mother. 
The descendants of Aurelius Venport and Norma Cenva have built Venport Holdings, using mutated, spice-saturated Navigators who fly precursors of Heighliners. 
Gilbertus Albans, the ward of the hated Erasmus, is teaching humans to become Mentats…and hiding an unbelievable secret.

The Butlerian movement, rabidly opposed to all forms of “dangerous technology,” is led by Manford Torondo and his devoted Swordmaster, Anari Idaho. 
It is this group, so many decades after the defeat of the thinking machines, which begins to sweep across the known universe in mobs, millions strong, destroying everything in its path.



Book 2 Mentats of Dune
The thinking machines have been defeated but the struggle for humanity's future continues.

Gilbertus Albans has founded the Mentat School, a place where humans can learn the efficient techniques of thinking machines. 
But Gilbertus walks an uneasy line between his own convictions and compromises in order to survive the Butlerian fanatics, led by the madman Manford Torondo and his Swordmaster Anari Idaho. 
Mother Superior Raquella attempts to rebuild her Sisterhood School on Wallach IX, with her most talented and ambitious student, Valya Harkonnen, who also has another goal—to exact revenge on Vorian Atreides, the legendary hero of the Jihad, whom she blames for her family's downfall.

Meanwhile, Josef Venport conducts his own war against the Butlerians. 
VenHold Spacing Fleet controls nearly all commerce thanks to the superior mutated Navigators that Venport has created, and he places a ruthless embargo on any planet that accepts Manford Torondo's anti-technology pledge, hoping to starve them into submission. 
But fanatics rarely surrender easily . . .

The Mentats, the Navigators, and the Sisterhood all strive to improve the human race, but each group knows that as Butlerian fanaticism grows stronger, the battle will be to choose the path of humanity's future—whether to embrace civilization, or to plunge into an endless dark age.



Book 3 Navigators of Dune
Navigators of Dune is set 10,000 years before Frank Herbert's classic Dune.

The story line tells the origins of the Bene Gesserit Sisterhood and its breeding program, the human-computer Mentats, and the Navigators (the Spacing Guild), as well as a crucial battle for the future of the human race, in which reason faces off against fanaticism. 
These events have far-reaching consequences that will set the stage for Dune, millennia later