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 digs into the origins of the feud between the Atreides and the Harkonnens, which eventually ends with Paul Atreides.

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**