agent sent to poison Kailea's mind against Leto. Matters are complicated further with the arrival of Jessica, a Bene Gesserit and the secret daughter of Reverend Mother Gaius Helen Mohiam and Baron Vladimir Harkonnen (though Jessica herself is unaware of her parentage). Jessica is presented to Leto as a gift from the Bene Gesserit, although the sisterhood has the ulterior motive of using the pair in their breeding program. At first, Leto refuses to have much to do with Jessica and tries to remain faithful to Kailea. However, as he and Kailea grow farther apart, he begins to seek out Jessica's company. Finally, Kailea is driven to make an attempt on Leto's life by having an explosive device planted on his skyclipper. At the last minute, Atreides house guard Captain Swain Goire decides to let Victor and Rhombur go along with Leto, and the boy dies instead. Leto is relatively unharmed, but Rhombur is reduced to little more than a charred lump of flesh. Fearing that Leto will guess that she is responsible for the death of their son and driven by guilt, Kailea kills her lady-in-waiting (a spy from the Harkonnen) and then commits suicide by jumping out a window. The Tleilaxu offer to grow a ghola of Leto's deceased son in exchange for the barely alive body of Rhombur Vernius. Leto ultimately refuses, after much soul-searching, knowing that the Tleilaxu intend only harm towards House Vernius and House Atreides. Instead, Tessia, a Bene Gesserit and wife of Rhombur, with consent of Leto hires Dr. Wellington Yueh, an expert in the field of cybernetics, to fashion a cybernetic replacement body for Rhombur. Leto and Jessica fall deeply in love, leading Jessica to decide to conceive a son for Leto's sake, directly disobeying the Bene Gesserit's order that she have a daughter. On the Harkonnen homeworld of Giedi Prime, the Baron Harkonnen grows weaker and more corpulent due to a strange disease which, unbeknownst to him, was inflicted upon him by a vengeful Mohiam. After killing a slew of doctors who fail to diagnose or alleviate his condition, he hires Dr. Yueh for a massive price. Yueh reveals to the Baron that Mohiam is responsible for his ailment. In response, the Baron attempts to take revenge against the Bene Gesserit, but fails miserably. Meanwhile, the Baron's brother, Abulurd, uncovers an illegal stockpile of spice on Lankiveil. Rather than turn his