In this third installment, "Sisterhood Above All," we begin with a shellshocked Valya exiting the palace gates on Salusa Secundus with Sister Theodosia. Fearing that the Sisterhood's hold on the great houses is quickly slipping, they must act fast to regain control, especially with the Emperor's House Corrino.

Dune: Prophecy takes a deep dive into the lives of Valya and Tula Harkonnen, ending with a sequence where Valya visits her uncle and nephew. Actors Emily Watson and Jessica Barden play Valya Harkonnen,

The original working title for Dune: Prophecy was Dune: The Sisterhood. The sisterhood in question refers to the manipulative nuns known as Truthsayers, but it could just as easily refer to the two most important characters in the show: Valya and Tula ...