HBO’s upcoming sci-fi prequel series, ‘Dune: Prophecy,’ reveals the origins of the Bene Gesserit, a powerful sect that plays a crucial role in the ‘Dune’ universe. Set 10,000 years before the events of the original ‘Dune’ novel, the series stars Emily Watson as Valya Harkonnen, a key figure in the Sisterhood’s rise to power. Prepare for an epic adventure with a stellar cast as the Harkonnen sisters fight to protect humanity’s future.