Heretics of Dune

In this introduction, Frank Herbert reflects on the creation and subsequent reception of his novel, Dune. He describes a rigorous six-year research period and a writing process characterized by intense concentration, where he focused exclusively on the craft rather than potential success or failure. Herbert outlines the multifaceted goals of the novel, intending it to explore the myth of the Messiah, the intersection of politics and economics, the pitfalls of absolute prediction, and ecological themes, specifically using potable water as an analog for oil. Despite initial critical panning and rejection by twelve publishers, the book eventually achieved massive global success. Herbert concludes by emphasizing his belief that a writer should not write for success, as it distracts from the work, and asserts that his primary obligation was to provide value and entertainment to the reader in exchange for their investment.

Reverend Mother Lucilla arrives at Gammu Keep to serve as an Imprinter for the twelfth Duncan Idaho ghola. Upon arrival, she engages in a tense dialogue with Reverend Mother Schwangyu, the commander of the keep, who openly opposes the ghola project and Mother Superior Taraza's leadership. Schwangyu reveals that eleven previous gholas failed or were killed, likely by the Tleilaxu, and warns of the extreme danger in meddling with the remnants of the Tyrant. The conversation also touches upon the existence of Sheeana Brugh on Rakis, a girl capable of controlling giant worms, and the threat posed by the Honored Matres, who seek the Sisterhood's knowledge of melange. As Lucilla and Schwangyu observe the ghola's training-play—which is designed to prepare his muscles for restoration—they reflect on the enduring legacy of the God Emperor Leto II. They discuss how Leto II's religious engineering and the Golden Path surpassed the capabilities of the Bene Gesserit, leaving the Sisterhood in a state of frustrated awe. The chapter highlights internal frictions regarding the ghola's education, specifically the influence of Miles Teg and the perceived failure of the teacher Geasa, who developed affection for the subject.

Reverend Mother Superior Alma Mavis Taraza interviews Darwi Odrade on Chapter House Planet to prepare her for a critical assignment on Rakis involving a ghola. Their conversation explores the current geopolitical instability caused by the return of 'Lost Ones' from the Scattering, specifically the Honored Matres, and the Tleilaxu's stockpiling of advanced weaponry. Odrade reflects on her childhood on Gammu, her foster mother Sibia, and the Bene Gesserit's rigorous training in simulflow and the suppression of love, which the Sisterhood deems a source of misery. The dialogue further delves into the 'wild talent' of the Atreides genetic line—which produced the Kwisatz Haderach and the Tyrant—and the dangers of institutionalization within the Sisterhood. Taraza warns Odrade against over-prowling Other Memories and instructs her on the restrictions of her mission, while Odrade contemplates the long-term impact of Leto II's Golden Path and the inherent revolutionary nature of the Bene Gesserit organization.

Duncan Idaho, a youth being raised in a Bene Gesserit Keep on the planet Gammu (formerly Giedi Prime), undergoes rigorous military and psychological training under the guidance of Miles Teg and various Reverend Mothers. Through independent library research and fragmented revelations, Duncan discovers the shocking truth of his identity: he is a ghola, a human grown from the cells of a cadaver in Tleilaxu axlotl tanks. He learns that a ghola's original psychological identity can be ignited and memories recovered through trauma. This realization transforms Duncan's perspective, fueling a deep resentment toward his controllers, particularly Reverend Mother Schwangyu. In response, Duncan adopts a strategy of silence and watchfulness to resist his captors. Meanwhile, the Bene Gesserit maintain strict control over his environment; Luran Geasa is removed from his education due to her emotional attachment to him and is replaced by the more rigorous Tamalane, who is immediately met with Duncan's open hatred.

Reverend Mother Superior Taraza visits Miles Teg at his retirement sanctuary on Lernaeus to recruit him for a critical mission: training and protecting a six-year-old Duncan Idaho ghola on Gammu. Despite his reluctance to leave his research garden and retirement, Teg's loyalty to the Bene Gesserit and his sense of duty lead him to accept the assignment, provided he is given full command of Gammu's defenses. During the visit, Taraza warns Teg not to trust Schwangyu and highlights the urgency of the mission due to internal disputes within the Bene Gesserit Council. Following the meeting, Teg coordinates the handover of his estate with his daughter, Dimela. In a subsequent conversation in a greenhouse, Teg reflects on his family history and the Sisterhood's long-term breeding designs, realizing that his life and retirement were likely orchestrated by the Bene Gesserit to ensure he was available for this specific moment.

Tylwyth Waff, the Mahai and Master of the Masters of the Tleilaxu, prepares for a cosmic leap toward ascendancy. He meets with his nine councillors, including Mirlat and Torg the Younger, to discuss the 'Atreides Manifesto,' a document acquired from the powindah. While Mirlat initially expresses concern that the manifesto is dangerous, Waff argues that its claims regarding the wordless nature of the universe align with the secret Sufi-Zensunni beliefs of the Tleilaxu. Waff convinces the council that rather than suppressing the document—which would only increase its power—they should ensure its wide circulation. By doing so, the Tleilaxu can destabilize other powindah religions while remaining hidden behind a cultivated myth of weakness. The chapter concludes with Waff instructing Scytale to arm the faithful and the councillors performing a closing ritual, as Waff reflects on the strategic use of the manifesto to lead the powindah to their doom.

Chapter 7 introduces Sheeana, an eleven-year-old girl living under the care of the priests of Rakis in the city of Keen. Three years prior, a pre-spice blow caused a giant sandworm to destroy her village, leaving her as the sole survivor. In a state of rage and desperation, Sheeana climbed onto the worm's back and was carried to Keen, where she performed the Dance of Propitiation. This event sparked a deadlock among the priests: Stiros argued she should be punished for the forbidden act of riding a worm, while Umphrud advocated for her cautious acceptance, noting she lacked maker hooks and could not have guided the creature. To resolve the dispute, High Priest Hedley Tuek ordered a test. Sheeana was taken to a remote dune where two thirty-meter worms were summoned via a thumper. Rather than being consumed, Sheeana commanded the worms to retreat, and they obeyed. This confirmation of her unique power to control Shai-hulud prompted the priests to report the event to the Bene Gesserit embassy and the Chapter House.

This chapter provides a retrospective look at the upbringing and training of Miles Teg, emphasizing the influence of his mother, Lady Janet Roxbrough-Teg, a Bene Gesserit. Through a childhood memory, the narrative illustrates the nature of the Bene Tleilax and their Face Dancers—sterile, communal beings devoid of self-identity and ethical codes who operate through illusion and memory absorption. Teg's early aptitude for observation led to his training as a Warrior Mentat at the Bene Gesserit stronghold on Lampadas, where he also discovered his Atreides ancestry and experienced a spiritual awakening termed 'The Mind at Its Beginning.' In the present, Teg meets with Reverend Mother Schwangyu on Gammu to discuss his role as Weapons Master to a ghola. The interaction reveals a deep political rift within the Bene Gesserit; Schwangyu is in active opposition to Reverend Mother Taraza's ghola project. Teg recognizes Schwangyu as an enemy and reaffirms his commitment to protect the ghola-child, recognizing that he himself was bred as part of the Sisterhood's long-term strategic design.

Chapter 9 opens with a historical reflection by Gaus Andaud on the 10,000th anniversary of Leto II's metamorphosis and the enduring debate over the Golden Path. The narrative then shifts to a high-stakes negotiation on an Ixian no-ship orbiting a gas giant between Waff, a Tleilaxu Master, and an Honored Matre. The Honored Matre dominates the encounter through intimidation, seeking information on a specific ghola and a method to nullify no-ship invisibility. While she views Waff as a subordinate, Waff employs Mentat-style tactics and concealed weapons to navigate the encounter. After the Honored Matre assigns two younger women to accompany him—one of whom is a Tleilaxu Face Dancer—Waff launches a lethal counter-attack. He and his Face Dancer accomplices assassinate an old Honored Matre and her attendant using poisoned darts. Following the killings, the Face Dancers copy the identities and memories of the deceased, revealing that the Honored Matres utilize advanced sexual stimulation techniques to command worship. To ensure total secrecy, Waff orders the no-ship to vanish without survivors.

Following a desert test, eight-year-old Sheeana is integrated into the priestly complex on Rakis, where she is revered as a 'Child of God.' She quickly discovers her immense power over the priests, who are paralyzed by fear and awe. While the priests, led by High Priest Tuek, treat her whims as divine mandates, they also obsessively study her. Historian-locutor Dromind attempts to link Sheeana to the ancient Siona Atreides, but his persistence and questioning of Tuek's judgment lead to his execution by being abandoned in the desert with thumpers. As years pass, Sheeana lives in a state of 'sublimely autocratic routine,' using her position to satisfy her curiosity while keeping her true origins and her relationship with Shaitan a secret. Meanwhile, the Bene Gesserit, specifically Taraza, monitor her progress from afar, confirming that Sheeana is the specific individual they have been preparing for over generations.

The chapter focuses on the development and psychological state of the young ghola, Duncan Idaho, on Gammu. Duncan struggles with fragmented memories and the presence of a 'stranger' within his mind, which manifests as intuitive knowledge and haunting visions of a woman. He engages in small acts of rebellion against his strict environment, specifically by visiting 'Forbidden Windows' to observe the natural world. The narrative shifts to a tense ideological conflict between two Reverend Mothers, Schwangyu and Lucilla. Schwangyu employs a harsh, punitive approach to Duncan's training, while Lucilla advocates for candor and loyalty to bond him to her. Their argument reveals deep divisions within the Bene Gesserit regarding Reverend Mother Taraza's plans for the ghola, with Schwangyu fearing the creation of another Kwisatz Haderach or Tyrant, while Lucilla proceeds with increasing Duncan's spice intake to accelerate his development.

On Rakis, the Bene Gesserit, led by Mother Commander Tamalane, covertly manipulate the religious and social landscape to serve the Sisterhood's goals. They act as 'artists in mythology,' amplifying the legend of Sheeana, a young woman capable of commanding sandworms, to foster popular devotion while sowing discord among the priestly leadership. Sheeana challenges the authority of High Priest Tuek and Councillor Stiros, notably by intervening to save prisoners from execution and questioning the naming of the worm as Shaitan. While Stiros views her as a threat and considers the 'translation' of Tuek due to the latter's metaphysical shifts, he ultimately fears that removing Sheeana could invite a more terrible divine intrusion. As pioneer villages are replaced by tower communities featuring windtraps and gardens, the populace increasingly views Sheeana as a divine intercessor. The Bene Gesserit identify this shift as 'expanding worship,' where prayers once directed toward Shaitan or Shai-hulud are now offered to Sheeana.

Miles Teg is summoned by Mother Superior Taraza to a Guild Transport orbiting Gammu. Upon arrival, Teg senses a dangerous atmosphere and discovers that Taraza and her entourage are being held captive by an agent of the Honored Matres, people from the Scattering. Using his Mentat abilities, Teg deduces the presence of these outsiders and bluffs the captor into releasing the Bene Gesserit by claiming he has no-ship monitors targeting the vessel and that his subordinate, Bashar Burzmali, is prepared for a counter-strike. After their rescue, Taraza reveals that the capture was a calculated risk to draw out the intruders and gather intelligence. The chapter concludes with a discussion on the urgent necessity of awakening the Duncan Idaho ghola, despite his young age, to counter the threat posed by the Honored Matres.

While traveling via a small lighter to Gammu, Odrade reflects on the dangerous power of love, recalling her first seduction and how the Bene Gesserit view emotional bonding as a 'dependency' that clouds reason and disrupts duty. Simultaneously, Mother Superior Taraza engages Miles Teg in a pedagogical discussion about 'dependency infrastructure' and 'hydraulic despotism,' using the example of the Honored Matres to illustrate how combining sexual ecstasy with worship creates a precarious, addict-like dependency that could lead to systemic collapse. Taraza uses these concepts to warn both Teg and Odrade about the risks of the elements the Bene Gesserit are releasing into the human current. The chapter concludes with Taraza instructing Teg to meet with Odrade to be prepared via the Atreides Manifesto, leaving Odrade to contemplate the risks of Taraza's strategy regarding the creative faculty of prescience.

Upon returning to Gammu from a Guildship, Miles Teg is unsettled by the feeling that the Bene Gesserit have staged events to disrupt his predictable Mentat processes. He observes the genetic markers of the Atreides and Harkonnens among the local population and notes the Sisterhood's influence on the planet's breeding. After Mother Superior Taraza arrives and requests a private meeting with Lucilla, Odrade takes Teg aside for a revelation. Odrade reveals that she is Teg's daughter, a product of the Sisterhood's careful genetic management, and that she authored the Atreides Manifesto under Taraza's direction. Teg, while acknowledging the biological fact, remains critical of the Bene Gesserit, arguing that Reverend Mothers have removed themselves from the human experience to become manipulators. Despite this cold assessment, Odrade is privately pained by his judgment, finding a fleeting sense of lost humanity in her memories of a Van Gogh painting. The chapter concludes with Taraza directing Odrade to depart for Rakis.

High Priest Hedley Tuek and the cynical councillor Stiros clash over the education of the child Sheeana and the nature of the Divided God. Following this tension, Tuek visits Sheeana in the roof garden, where she questions him about the priesthood and requests to meet Reverend Mother Odrade. The encounter is violently interrupted by a seeker trailing shigawire, which kills the acolyte Kipuna and two guards. Odrade and a group of Bene Gesserit women intervene, securing Sheeana and intercepting Tuek and Cania in a hallway. In the aftermath, Odrade discovers the body of Stiros, whom she identifies as a conspirator in the attack, which she suspects involved the Ixians and Face Dancers. After using the Voice to dismiss Cania and Tuek, Odrade remains alone with Sheeana, viewing the child as a canvas for 'magnificent order' akin to a work of art.

Following the departure of Taraza and her party from Gammu, Miles Teg experiences a period of disorientation and anxiety, finding his mind resisting standard Mentat mode. This mental state triggers a vivid memory of a past encounter with Taraza after the Barandiko incident. During this recollection, Taraza shares philosophical insights regarding the nature of the spice, the limitations of prescience, and the importance of doubt. She reveals a connection between the Bene Gesserit's spice agony and Zensunni rituals, challenging Teg's perceptions of the Sisterhood and his own mother. Upon returning to the present, Teg realizes that Taraza had deliberately used that past interaction to 'amplify' his mental capabilities. He concludes that she is demanding a high-level performance from him, the necessity of which suggests a dire situation that could potentially lead to the end of the Bene Gesserit.

Following an assault on a temple complex, Mother Commander Odrade establishes a command center in the quarters of Sheeana. While managing the aftermath and coordinating with Chapter House, Odrade uses her trained senses to discover that the room's architecture allows for eavesdropping via a ventilator. She orders the execution of the four priests listening in, who are revealed to be minions of Tuek. Odrade engages in a psychological power struggle with Sheeana, a child who possesses a natural, unconscious mastery of the Voice and is revered as a divine figure by the local priests. Odrade observes Sheeana's vindictiveness and lack of emotional control, determining that the girl requires rigorous training. Meanwhile, Odrade receives strategic instructions from Taraza at Chapter House to manipulate the Guild and Ix while trapping the Master of Masters on Rakis. The chapter concludes with Odrade using the full power of the Voice to assert dominance over Sheeana, which unexpectedly leaves the child feeling excited and less bored.

Lucilla observes Duncan's advanced prana-bindu training and reflects on her assignment to perform a Sexual Imprint on him. During a session, a Face Dancer disguised as Miles Teg attacks, but is neutralized by a sniper and Duncan's rapid reactions. The real Miles Teg reveals that he used a dead perimeter guard as a decoy to lure the Tleilaxu attackers, resulting in the destruction of the enemy no-ship and the quarters of Reverend Mother Schwangyu. Lucilla suspects Schwangyu of conspiring with the Tleilaxu, a suspicion reinforced by Teg's manipulation of the Reverend Mother to remove her from the area. Following the skirmish, Teg urgently leads Lucilla and Duncan out of the Keep via a path prepared by Patrin. Lucilla senses a destructive surge in the Sisterhood's politics, realizing she has aligned herself with Teg in a conflict she does not fully comprehend, while Teg warns the group to be prepared to kill anyone who attempts to stop their departure.

Mother Superior Taraza and Tleilaxu Master of Masters Tylwyth Waff meet on a neutral Guild no-ship to negotiate. Taraza employs a strategy of bold lies and psychological pressure to extract information regarding the Honored Matres and the Tleilaxu's new Face Dancers. Throughout the encounter, Taraza detects hidden weapons in Waff's sleeves and probes his reactions to various claims, including the subversion of Schwangyu on Gammu and the capture of an Ixian conference ship. The negotiation shifts when Taraza offers breeding mothers of the Atreides line in exchange for Tleilaxu cooperation. By utilizing Zensunni and Sufi religious phrasing derived from Other Memories, Taraza discovers Waff's secret beliefs, allowing her to build a deceptive rapport. The meeting concludes with an agreement to complete their bargain on Rakis, where Taraza intends to use Waff as bait to gain an advantage for Odrade.

Reverend Mother Odrade observes the city of Keen on Rakis from her window, reflecting on her Bene Gesserit training and her upcoming tutelage of Sheeana. While awaiting Sheeana's arrival, Odrade witnesses a ritualistic 'Dance Diversion' (Siaynoq) in the Great Square, which she identifies as a devolved form of the Tyrant's rituals and sandwalking. As a crowd gathers and becomes restive, violence erupts, and the dancers are eventually overwhelmed and pummeled by the mob. Sheeana arrives under the escort of yellow-helmeted Priest Guardians and priestesses, who move implacably through the chaos. Upon meeting Sheeana, Odrade realizes that the ritual and the crowd's reaction are part of a complex, unconscious language composed of voice tones, movements, and pheromones. This epiphany leads Odrade to believe she has discovered a method to trap the Tleilaxu, furthering the strategic designs of Taraza.

Miles Teg leads Lucilla and the ghola Duncan through the wilderness of Gammu for four nights, utilizing a memory-path discovered by his late aide, Patrin. As they evade the searchers of the rebellious Reverend Mother Schwangyu, Teg reflects on the limitations of strict Mentat logic, concluding that survival often requires the 'unexpected' and chaos. Throughout the journey, Teg grapples with a hierarchical code of loyalty, viewing it as the primary token of exchange in his relationship with Mother Superior Taraza. While guiding the group, Teg secretly decides to obstruct Lucilla's plans to Imprint Duncan, believing that Duncan's pre-ghola memories must awaken first to ensure his safety and sanity. After utilizing a life-shield blanket to hide from aerial searchers and navigating past a decoy charred area simulating a no-ship take-off, Teg successfully leads the group to a millennia-old Harkonnen no-globe sanctuary.

Darwi Odrade, commander of the Bene Gesserit Keep on Rakis, engages in a high-stakes psychological and physical confrontation with High Priest Hedley Tuek and Tleilaxu Master Waff. Odrade manipulates Tuek's religious fervor regarding the Atreides Manifesto to expose Waff, who had been spying via a focusing horn. The encounter turns violent when Waff attempts to assassinate both Odrade and Tuek using concealed dart throwers; Odrade neutralizes Waff by breaking his arms, though Tuek is incapacitated by a dart and subsequently killed by Waff. Following the violence, Odrade secures Waff's cooperation through a sophisticated deception. By utilizing specific religious references to the Shariat and Zensunni signs, she tricks Waff into believing the Bene Gesserit share the Tleilaxu 'True Faith' and are not 'powindah.' Odrade leverages this false kinship to propose an alliance against the existential threat of the Honored Matres and the 'Scattered Ones,' while discussing the strategic implications of a spice monopoly involving Ixian navigation machines.

Mother Superior Taraza is grappling with critical strategic decisions regarding the Tleilaxu, the ghola, and the potential threat of the Honored Matres from the Scattering. While reviewing breeding projections for Waff and analyzing the risks associated with Rakis, she struggles with her dependency on the Archivists and the bureaucratic nature of the Sisterhood's records. Taraza is particularly concerned about the unpredictable nature of the worms on Rakis and the missing status of Miles Teg. To manage the crisis, she decides to send Burzmali to Gammu to trace Teg's movements while instructing Odrade to proceed with the plan on Rakis, though with a calculated level of ambiguity. Throughout her reflections, Taraza balances her deep loyalty to the Bene Gesserit's continuity with a lingering suspicion of Odrade's 'wild talent'—a form of Atreides prescience—which makes Odrade both an asset and a potential danger to the Sisterhood's motto of 'Never Again' regarding the rise of another Tyrant.

Teg and Lucilla are hiding in a 'no-globe', an ancient Harkonnen hideaway from the time of the Tyrant. Teg engages the ghola Duncan in a psychologically and physically rigorous training session, following precise instructions from Taraza to trigger the restoration of Duncan's original memories. The process involves provoking intense emotional and physical pain, as Teg believes these are essential catalysts for the reawakening. After a period of manipulation and physical assault, Duncan experiences a breakthrough, recalling his death at the hands of Sardaukar in Harkonnen uniforms and his past life as a regimental commander. Following the restoration, Duncan displays a complex mixture of gratitude toward Teg and hostility toward the Bene Gesserit and Harkonnens, while sensing a latent power within himself. Teg reflects on the emotional toll of the procedure, noting that the new technique leaves psychological scars on the manager rather than the ghola.

Reverend Mother Odrade and Sheeana escort the Tleilaxu Master Waff into the desert near Dar-es-Balat for a demonstration. Odrade utilizes the excursion to study Waff's religious fanaticism and the Tleilaxu 'Great Belief' while managing a fragile alliance. During the journey, Odrade experiences a powerful Other Memory of the Tyrant Leto II's fall at the Idaho River, sparking concerns about the potential awakening of the Tyrant's memory within the worms. Upon reaching a rocky area, Sheeana summons a giant sandworm, which she calls Shaitan, using a dance and vocal commands. After Sheeana, Odrade, and Waff mount the creature, the worm travels into the open desert. Odrade eventually realizes that the worm is not following Sheeana's directions but is instead moving of its own volition, drawn by the imprint of the Tyrant's memory toward the site where he died.

In this chapter, Duncan Idaho and Bashar Teg engage in intense combat training within a hidden Harkonnen no-globe on Gammu. Duncan demonstrates an extraordinary ability to blend ancient combat lore with new techniques learned at the Keep, eventually surpassing the standard 'seven attitudes' of combat. As they train, Duncan and Teg discuss Teg's legendary military reputation and the nature of the Bene Gesserit's designs. Duncan expresses deep skepticism and distrust toward Lucilla and the Sisterhood, asserting his autonomy and refusing to be a mere tool for their goals on Rakis. The session concludes with a tense confrontation involving Lucilla, who realizes that both she and Teg are merely pawns in Mother Superior Taraza's larger, more complex machinations. Duncan remains wary of hidden Tleilaxu modifications within his ghola body, while Lucilla acknowledges the danger of their current position and the expendability of their roles.

Mother Superior Taraza, battling extreme mental and physical fatigue, reflects on her childhood and the death of Sister Baram while managing the Bene Gesserit's precarious political alliances with the Tleilaxu and the Rakian priesthood. Her primary concern is the disappearance of Miles Teg, Lucilla, and a ghola on Gammu. Bashar Burzmali returns from Gammu to report that the site was devastated and that a message left by the deceased agent Schwangyu identifies the attackers as 'Whores,' leading Taraza to conclude they are the Honored Matres. Taraza and Burzmali speculate on Teg's escape, with Burzmali suggesting that the former Harkonnen wealth of Gammu could have funded the secret installation of a no-room or no-globe. Burzmali proposes a mission to investigate these possibilities under the cover of placing a funeral marker for Teg. Taraza approves the plan but warns Burzmali of the lethal threat posed by new Face Dancers, instructing his team to use shere and destroy their own heads if captured to prevent information leaks.

The chapter opens with a philosophical reflection by Mother Superior Taraza on the relationship between belief and reality. The narrative then shifts to Darmoor, where Reverend Mother Odrade, Sheeana, and the Tleilaxu Waff are traveling across the Rakian desert atop a sandworm toward the remnants of the Tyrant's barrier wall. Odrade reflects on the tension between the Bene Gesserit and the Rakian priesthood. Through a flashback, Odrade recalls a high-stakes confrontation in Dar-es-Balat with Albertus, a senior priest. Using her deep understanding of human psychology and the Missionaria Protectiva, Odrade systematically breaks Albertus's will, exposing his secrets and instilling a profound, religious fear in him. She uses this 'directed hysteria' to ensure the priesthood's submission and cooperation, warning Albertus that the survival of Rakis depends on their obedience to her and Sheeana. The chapter emphasizes the Bene Gesserit's mastery of manipulation and the fragile state of the Rakian priesthood's conditioning.

In this chapter, tensions peak between Duncan Idaho, Miles Teg, and the Bene Gesserit Imprinter Lucilla within the isolation of the no-globe. Lucilla attempts to manipulate and seduce Duncan to fulfill Taraza's mysterious instructions, but Duncan resists her, asserting his autonomy and threatening violence if she continues to touch him without permission. Teg, utilizing his Mentat abilities and innate powers inherited from his Reverend Mother mother, observes the dynamics and confronts Lucilla. He deduces that the Sisterhood intends to use Duncan as a 'stud' or genetic asset on Rakis to assist in gathering the talents of a girl named Sheeana, who can control the sandworms. After a brief standoff involving an unloaded lasgun, Teg reveals he has established contact with Burzmali. The chapter concludes with the trio heading to the library to memorize maps of Giedi Prime and identify potential sanctuaries, preparing for an eventual escape from their current confinement.

Odrade, Sheeana, and Waff are transported by a sandworm to the ruins of Sietch Tabr. Upon arriving at the base of an ancient wall near the Sareer, the group descends into a hidden cave complex. Odrade, utilizing the Islamiyat language to ensure Waff remains behind, explores the ruins alone. She discovers a series of mummified bodies showing signs of ritualistic and violent killings, including stabbing and lasgun burns, which she concludes are not from the Fremen era. Guided by a sense of peril, Odrade navigates the gathering chamber, identifying markers through Other Memories and the word 'Arafel'. After triggering a collapse into a hidden room, she discovers a massive hoard of melange and a series of messages left by the Tyrant. These inscriptions challenge the Bene Gesserit for failing to build the Golden Path and question the meaning of their survival, leaving Odrade to reflect on the burden of knowledge shared with Taraza and the fragility of the Sisterhood.

Miles Teg, Duncan Idaho, and Lucilla emerge from a no-globe into a freezing, snowy night. Tension exists between the three, particularly between Duncan and Lucilla, and Teg harbors doubts about the reliability of his plan and his ally, Burzmali. As they wait, they are suddenly ambushed by Tleilaxu Face Dancers and no-ships landing in the valley. Recognizing the danger, Teg orders Duncan and Lucilla to flee upslope toward Burzmali's position, sacrificing himself to provide cover. Teg utilizes a modern lasgun and an antique Harkonnen lasgun to inflict heavy casualties on the Face Dancers, strategically manipulating the enemy's perception of his remaining ammunition to lure them closer. After clearing the immediate slope and attempting to retreat and rejoin his companions, Teg is blindsided by a stunner blast coming from the direction where he sent Duncan and Lucilla, leaving him in darkness and realizing he had been outmaneuvered.

Reverend Mother Odrade navigates the political instability of the city of Keen, where High Priest Tuek has been replaced by a Face Dancer. To secure the survival of the Sisterhood, Odrade employs Missionaria Protectiva techniques and the language of the Islamiyat to manipulate Waff, a Tleilaxu Master of Masters. By bypassing Waff's psychological defenses and exploiting his distrust of Tleilaxu descendants from the Scattering, Odrade steers him toward a strategic alliance. She proposes that the Bene Gesserit openly espouse the Tleilaxu's 'Great Belief' to convert the 'Lost Ones.' In exchange for an unrestricted source of melange, Odrade agrees to provide breeding records and mothers of Waff's choice, and to breed the ghola of Duncan Idaho with Sheeana. While Waff believes he has outmaneuvered Odrade and secured Tleilaxu dominance through the Duncan ghola, Odrade operates under the pragmatic guidance of Taraza, grappling with internal doubts sparked by the Tyrant's legacy.

Burzmali executes a complex rescue operation to save Duncan and Lucilla, employing 'Teg-style audacity' through the use of decoys and a command post hidden within a pilingitam tree. After a harrowing escape involving armored groundcars and a diversionary explosion, the fugitives are brought to a hidden facility shielded by algae to evade life scanners. There, they meet Sirafa, a Face Dancer and specialist trained to kill Honored Matres. Sirafa reveals her ability to alter her appearance and proposes a plan to smuggle the group to a no-ship for safety. To facilitate this, Lucilla is disguised as 'Pira,' a fifth-stage adept in the Order of Hormu, while Burzmali assumes the identity of a field worker named 'Skar.' A power struggle ensues between Lucilla and Sirafa, during which Lucilla uses the Voice and demonstrates her superior Bene Gesserit knowledge of orgasmic amplification to assert dominance over the Face Dancer.

Mother Superior Taraza deliberates on the future of the Sisterhood, specifically regarding Odrade's actions and the potential for a cautious alliance with the Tleilaxu to secure the secret of the axlotl tanks. This strategy is fiercely opposed by Reverend Mother Bellonda, who views Odrade as a traitor due to her Atreides and Corrino lineage and considers the Tleilaxu to be immoral monsters. Taraza also weighs the external threats posed by the returning Scattered Ones and the Honored Matres, while analyzing the Tleilaxu's pursuit of perfect Face Dancer mimics. Throughout these deliberations, Taraza grapples with the lingering influence of the Tyrant and a period of deep melancholy and suppressed rage. By processing this emotional distress, Taraza restores her internal balance and authority, ultimately deciding that she will travel to Rakis.

Miles Teg is captured and taken to a dilapidated shack where he is subjected to interrogation by a functionary, an interrogator named Yar, and a woman named Materly. He is tortured with a 'T-probe,' a device from the Scattering that differs from Ixian probes by manipulating the subject's physical reactions and senses to create a duplicate of their organic responses. Despite the excruciating pain and the use of olfactory triggers to induce memories of his childhood and Bene Gesserit training, Teg uses his Mentat and Bene Gesserit skills to maintain mental control and conclude that his captors are merely puppets for higher masters. Ultimately, the extreme agony of the T-probe triggers a physiological shift, elevating Teg's physical and mental abilities to a state of extreme speed. In this heightened state, Teg perceives his captors moving in slow motion, allowing him to free himself, kill the functionary, Yar, Materly, and the guards, and erase the probe's data before escaping toward the city of Ysai.

Mother Superior Taraza arrives on Rakis to meet with Reverend Mother Odrade and evaluate the postulant Sheeana. The encounter begins with a tense strategic debate between Odrade and Taraza regarding the Tleilaxu alliance, the nature of axlotl tanks—which Odrade suspects are actually surrogate mothers—and the risks posed by the new Duncan Idaho ghola. Odrade suggests the ghola may be a male equivalent of the Honored Matres, while Taraza warns that he could serve as a Tleilaxu recording device. After a high-pressure psychological examination, Sheeana demonstrates her intellect and a bridled natural ability with Voice, successfully passing Taraza's test. Following Sheeana's departure, Taraza and Odrade discuss the necessity of ruthless decision-making for the Sisterhood's survival and the influence of Odrade's Atreides ancestry on her courage. The chapter concludes with an analysis of Tleilaxu deception, specifically their use of perceived stupidity to mask their progress with the ghola process, before Taraza summons the Tleilaxu Master Waff.

Duncan Idaho, disguised as a Tleilaxu Master named Wose, is guided through the rugged terrain of Gammu by a man named Tormsa (initially identified as Ambitorm). The journey is a grueling traverse through animal tracks, ice-lined watercourses, and dense vegetation, designed to avoid detection by aerial searchers. Along the way, Duncan reflects on his identity as a ghola, his debts to the Bene Gesserit, and his grief over the fate of Miles Teg. As they reach a rocky ledge, Tormsa provides Duncan with a monoscope, revealing a massive, ancient city containing a colossal structure known as 'Barony' (or 'Ysai'), a former Harkonnen stronghold that triggers traumatic memories for Duncan. Tormsa instructs Duncan on how to mimic the behavior of local animals to deceive Ixian scanners used by the 'thopters' overhead. The chapter concludes with Duncan beginning to accept his role in a larger, mysterious scheme, viewing his experiences as a series of opening doors that will eventually reveal the purpose of his resurrection.

Following his capture and torture via a T-probe, Miles Teg emerges from hiding on Gammu, discovering he has acquired a 'second vision' that allows him to anticipate immediate events. Aided by a network of loyalists—including farmers and a man ruined in the Alajory explosion—Teg is transported in a Planetary Bank of Gammu groundcar to the city of Ysai. Upon arrival, Teg observes the city's architectural decay and disorientation before being taken to a secure bolt hole on the fifty-seventh floor of a black plasteel building. There, he is met by Jafa Muzzafar, a regional commander for the forces of Dur from the Scattering, and Solitz, a Suk doctor with an atypical orange forehead tattoo. After consuming a massive amount of food to satisfy an intense, new level of hunger, Teg uses his Mentat training and doubled vision to analyze his surroundings and Muzzafar's nature, concluding the commander is a mercenary. The chapter concludes with Muzzafar warning Teg that an Honored Matre is arriving to deal with him, a prospect Teg meets with confidence.

Lucilla and Burzmali navigate the lower-class quarters of Ysai on Gammu, a city characterized by decay, addiction, and genetic anomalies. As they move through the streets, Lucilla observes the Bordanos—genetically bred sewer workers—and encounters children of a sect following 'Guldur,' the local name for the Tyrant. She identifies a Tleilaxu Master disguised as a bulky figure and spots a 'Futar,' a human-animal hybrid from the Scattering. The environment, filled with 'hypnobongs' and a general sense of hopelessness, evokes a deep, dangerous hatred in Lucilla, which she recognizes as a risk to her discipline as a Reverend Mother. They eventually seek refuge in a shabby but secure room managed by an elderly woman from Rakis, a former priestess of the Divided God. The encounter with the degraded state of the woman, a descendant of the Fremen, further disturbs Lucilla. The chapter concludes with Lucilla struggling to purge her emotions and reflecting on how the visceral experience of Gammu has affected her more deeply than her formal training.

A high-tension meeting occurs at the Dar-es-Balat Museum between the Bene Gesserit, led by Mother Superior Taraza and Darwi Odrade, and the Tleilaxu Master Waff. The encounter reveals that High Priest Tuek has been replaced by a Face Dancer who has fully internalized the persona of the original priest, effectively becoming him. Taraza engages in a strategic negotiation with Waff, refusing to allow the Sisterhood to become axlotl tanks but offering Darwi Odrade for breeding in exchange for intelligence on the Honored Matres. Waff reveals a potent sensual control technique used by the Honored Matres to compel absolute obedience from males, demonstrating this power via Face Dancers. Following the meeting, Odrade reflects on the nature of discipline and the legacy of the Tyrant Leto, specifically concerning the education of Sheeana, who is being integrated into the Sisterhood and must learn to master her biological impulses to avoid the destructive nature of such sensual powers.

Lucilla and her guide, Burzmali, navigate the outskirts of Ysai on Gammu under the cover of darkness and clouds, attempting to reach a rendezvous point to recover a ghola. Lucilla remains deeply distrustful of their guides and the perceived safety of their destination. Upon arriving at a decrepit former Harkonnen factory, they are intercepted by Murbella, a newly robed Honored Matre. A brief, violent confrontation ensues when Murbella insults Burzmali; Burzmali attempts to strike her, but Murbella easily overpowers him. Lucilla intervenes using a Bene Gesserit sabard to incapacitate Murbella, establishing a hierarchy of power. Murbella quickly submits and expresses gratitude for the combat lesson. Murbella reveals that she has captured the ghola and intended to 'bed' him, but Lucilla claims the ghola as her special charge. The chapter concludes with Murbella leading them to where the ghola is being held, highlighting the precarious nature of their 'safe' haven.

Duncan Idaho awakens in a state of fragmented consciousness, experiencing a cascade of memories from his previous ghola incarnations and pre-ghola life, including recollections of Giedi Prime, the city of Barony, and his time with the Atreides. He recalls a mission with Tormsa to a Harkonnen counting outpost, which ends in Tormsa's violent death. In the present, Duncan is subjected to a sexual encounter with Murbella, an Honored Matre. During this act, a Tleilaxu-implanted response pattern is triggered, allowing Duncan to manipulate Murbella's physiological responses to an unprecedented degree of ecstasy, stripping her of her typical Honored Matre control. Following the encounter, Murbella is torn between an intense desire for Duncan and the knowledge that he is a dangerous ghola who must be eliminated. She attempts to kill him, but is intercepted by the Great Honored Matre, who decides that Duncan will not be killed but instead sent to Rakis.

Miles Teg is escorted by Field Marshal Muzzafar to a highly secured building that Teg recognizes as a former Bene Gesserit safe house, now repurposed as a 'bank' for the Honored Matres. After changing into his Bashar uniform, Teg meets an ancient, powerful Honored Matre who views herself as a banker of power and people. She describes her philosophy of ruling through 'protective ignorance,' keeping the general population (the 'muck') in a state of survival-based desperation to ensure obedience. The Honored Matre attempts to intimidate Teg, warning him that orange flecks in her eyes signal lethal rage. Teg observes the spiritual emptiness and lack of joy in both the Honored Matre and Muzzafar. In a calculated move, Teg uses a smile of genuine compassion to insult and intrigue her, leading her to call for another Honored Matre to 'mark' him. As the chapter ends, Teg's prescient doubled vision reveals a potential future where he slaughters everyone in the building, though he begins to contemplate the necessity of the Tyrant's design.

On Rakis, Mother Superior Taraza and Odrade prepare for a demonstration of Sheeana's mastery over the sandworms, while managing the presence of the priest Waff and his subordinate Tulushan. Taraza and Odrade discuss the lingering influence of the Tyrant (Leto II), believing his awareness persists within the worms and that recovering his design is essential for the Bene Gesserit. Odrade provides sexual education to Sheeana, framing it as a study of power and complexity to prepare her for the influence of the 'whores' from the Scattering, who seek to control the Old Empire. The chapter culminates in a sudden, violent attack by 'thopters belonging to the whores. Taraza is mortally wounded by laser beams, but before she dies, she performs the Bene Gesserit ritual of transferring her Other Memories and consciousness to Odrade. Odrade then leads Sheeana to safety through an airshaft, declaring herself the new Mother Superior and identifying the attackers as the whores.

Miles Teg executes a high-speed slaughter of the Honored Matres at their headquarters, killing Field Marshal Muzzafar and over fifty others. This assault is fueled by a profound physical and mental transformation linked to his Atreides ancestry, which tips him into a state of magnified speed and awareness. Following the attack, Teg seeks out Professor Delnay in Ysai, who helps disguise him as a Bordano overseer using sewage to mask his identity. Teg then reunites with a network of former soldiers and officers in a bar. Utilizing his 'doubled vision' and military command, Teg organizes the group, noting the psychological manipulations of the bar's architecture and service. He asserts authority over the room and announces a high-stakes mission: the capture of a no-ship from the Scattering currently positioned around the planet Gammu.

Miles Teg arrives on Rakis via a no-ship, establishing a command post at the ruins of Wind Trap. He coordinates a high-stakes extraction mission to retrieve Odrade and Sheeana, who arrive riding a sandworm. Teg reveals to Lucilla that the Honored Matres and Tleilaxu hold most Rakian centers and that Taraza has been killed. Teg's plan involves creating a diversion that he anticipates will lead the Honored Matres to destroy most of Rakis, including its worms and sandtrout, in a fit of hysteria. Throughout the chapter, Teg reflects on the nature of leadership, the ease of 'hoodwinking' masses, and the psychological depravity of the Honored Matres. After Odrade arrives, Teg instructs her to take the no-ship and the ghola, Duncan Idaho, back to Chapter House, emphasizing that Duncan's new talents are essential. The chapter concludes with a sudden satellite detection, forcing a rapid transfer of command to Burzmali as Odrade departs.

Following the Council session, Mother Superior Odrade reflects on the integration of Taraza's Other Memories and the precarious state of the Sisterhood. She contemplates the strategic failures of the Tleilaxu, the Guild, and Ix, while acknowledging the necessity of 'laagering up' against the Honored Matres. Odrade considers the biological significance of Sheeana and Murbella, specifically their 'proof of Siona' which shields them from prescience. A central focus is the plan to transform Chapter House into a new habitat for the sandworms using a single captive worm nearing metamorphosis, thereby breaking the oracular bondage of the Tyrant. Odrade visits Duncan Idaho in his confinement on the no-ship, revealing that Miles Teg was her father and explaining the Bene Gesserit's goal to eliminate the worms' collective influence to ensure human autonomy. The chapter concludes with Odrade observing the captive worm, reflecting on the concept of 'noble purpose' and the shifting nature of power and history.