- The Battle of Lampadas results in the destruction of the planet. Death of Alef Burzmali.
- Birth of Duncan Idaho’s and Murbella’s fourth daughter, Gianne.
- Sandworms appear on Chapterhouse Planet.
- Death of Darwi Odrade.
- Logno kills Dama and becomes Great Honored Matre.
- The Bene Gesserit launch the Battle of Junction.
- Murbella becomes both the new Mother Superior and the Great Honored Matre after killing Logno at the end of the Battle. She begins the conversion of the Honored Matres to Bene Gesserit Sisters: from the merging of the two groups rise the New Sisterhood.
- Duncan Idaho, Sheeana Brugh, Scytale, Miles Teg, a few Bene Gesserit and a few Jews escape from Chapterhouse with a no-ship.