The Machine CrusadeEarth is a radioactive ruin. But the initial campaign of the Butlerian Jihad has given new hope to mankind. Serena Butler, whose murdered child has become a symbol for oppressed humanity, inspires a war against the thinking computers led by Xavier Harkonnen and Vorian Atreides. But four of the Titansmurderous machines with human brains and human cunningstill remain. And the universal computer mind, Omnius, still wields most of its power.