Sisterhood of Dune is a 2012 science fiction novel by Brian Herbert and Kevin J. Anderson, set in the Dune universe created by Frank Herbert. It is the first book in their Great Schools of Dune prequel trilogy, which itself is a sequel to their Legends of Dune trilogy. The book is set eighty years after the events of 2004's Dune: The Battle of Corrin, in which the human military finally defeat 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. The Great Schools of Dune trilogy, first mentioned by Anderson in a 2010 blog post, will chronicle the early years of these organizations, which figure prominently in the original Dune novels. Source: Wikipedia (en)