Dune: Prophecy‘s third episode went back decades to show why Raquella Berto-Anirul took young Valya Harkonnen under her personal tutelage. Valya only joined the Sisterhood in the first place, though,

Prophecy episode 3. A flashback scene of Tula Harkonnen's shocking massacre of dozens of House Atreides members in Dune: Prophecy episode 3 "Sisterhood Above All" ended with the betrayal of her love interest,

Thanks to a protracted flashback in Dune: Prophecy Episode 3 “Sisterhood Above All,” we now have a sense that Tula might actually be the more deadly and dangerous Harkonnen sister. **Spoilers for Dune: Prophecy Episode 3 “Sisterhood Above All,” now streaming on Max**