takes a bad turn during the Battle of Corrin when faced with the human-shield situation. Erasmus has placed two million captive humans in an array of cargo containers rigged to explode once the human fleet advances, called the Bridge of Hrethgir. Vorian believes that sacrificing the captive humans is a necessary loss, but Abulurd disagrees. The two argue until Vorian relieves Abulurd of his command and has him confined to quarters. In a final attempt to save the captives, Abulurd deactivates the weapons for the entire fleet, making the Corrin attack more difficult and dangerous and eventually causing much higher casualties. Unknown to either, the robot Erasmus disabled the human shield programming, saving the humans in orbit. Following the victory, Abulurd is discharged and branded a coward by Vorian, though not branded a traitor like his grandfather Xavier, and banished from the League. After Abulurd is sentenced to exile on Lankeveil, his children hear stories about how their nobility had been stolen from them. When Abulurd dies of a fever, his sons claim it was Vorian Atreides who had brought the fever to destroy the Harkonnens. When House Harkonnen returns to the empire, their wild accusations at House Atreides are accepted as truth. Thus begins the feud between House Atreides and House Harkonnen. The Bene Gesserit The Sorceresses of Rossak take their final steps toward becoming the Bene Gesserit sisterhood when a resurgence of the machine plague occurs after the Great Purge. Raquella Berto-Anirul (granddaughter of Vorian Atreides) and Mohandas Suk, two doctors, arrive to assist with the new outbreak. After being infected herself, Raquella makes a miraculous recovery due to substances found on the planet. Paranoid and feeling that the doctor might somehow usurp her power, the leader of the Sorceresses, Ticia Cenva, poisons Raquella with the Rossak Drug. Rather than killing her, the ordeal awakens Other Memory within Raquella. She manages to internally convert the poison into a harmless substance, thus being the first to undergo what would later become the Spice Agony. Ticia kills herself, and it is implied that Raquella becomes the first Bene Gesserit Reverend Mother. After the Butlerian Jihad, Raquella assumes authority over the Sorceresses of Rossak and their breeding programs and founds the Bene Gesserit school of thought. The Suk School After the situation on Rossak is resolved, Mohandas Suk sets out on his mission to “form a medical school like none the