Dune: The Machine Crusade

Twenty years into the Butlerian Jihad, the war grinds on. The Machine Crusade tracks the human resistance across multiple worlds, the rise of Norma Cenva and the mathematics of foldspace travel, and the early forms of the Mentats, the Sisterhood, and the Swordmaster tradition.

It sits between The Butlerian Jihad and The Battle of Corrin.