Earth is now a radioactive world of death. But the first victorious campaign against the ruthless rule of thinking machines has ignited the hopes of oppressed humanity and a new era is dawning...
Two decades after the events described in Butlerian Jihad, the success of the first campaign against thinking machines has given new hope to humanity. The once powerful computers have been defeated by Serena Butler, the mother of the murdered child who became a symbol of oppressed humanity, and the brilliant strategists Xavier Harkonnen and Vorian Atreides.
But four Titans, deadly machines with human brains, have survived and are seeking new ways to dominate. And the global computational mind, Omnius, still retains most of its power.
The outcome of this cosmic conflict, where bloody clashes alternate with brief victories, is about to affect two figures that unexpectedly appear on the scene: the mythical Eca, a free Titan who will stand by humanity, and Norma Cenva, a mathematical genius who, thanks to the theory she develops, will forever change the parameters of space travel.

The second book of the Legends of Dune trilogy, which takes us even further back in time to tell the origins of the Hugo and Nebula award-winning epic DUNE!