Sisterhood of Dune

The Sisterhood of Dune is a book by Brian Herbert and Kevin J. Anderson and the first book in the Schools of Dune series. It revolves around the founding of the Bene Gesserit order early in the Corrino Empire. It is to be the first of a new series involving the beginnings of the Great Schools of the Imperium; the Sisterhood, the mentats, and the Swordmasters.