Two Harkonnen sisters combat forces that threaten the future of humankind and establish the fabled sect that will become known as the Bene Gesserit.

Ten thousand years before Paul Atreides joined the Fremen to lead an uprising on Arrakis to take down House Harkonnen, two sisters (Valya and Tula Harkonnen) create the mysterious all-female order called the Bene Gesserit. In Dune Prophecy, the siblings combat forces that threaten the future of humankind.—brianfabulous