In the library, Caspia writes a journal preserving a record of Kenn and Nelfinex for future Starlings. Her visions have eased since a constant internal thrum stopped; her only recent one showed Faxon discussing Kos’s adoption with Andreas. Faxon brings history books including Sonnet’s Ninety—a collection of tales told to the crux by a legendary gladiator to stave off his death. He formally asks Caspia’s permission for him and his husband Gable to adopt Kos. She gives it, and Faxon is overcome with emotion.

A paper cut bleeds dark green rather than red, and Caspia concludes that Calandra’s magic has altered her body at a fundamental level. Andreas visits briefly, calling her his heart. After he leaves, she finds the wound already healed, vows to find the truth, and is interrupted by Kos, who has borrowed an oversized scapular and declared himself head librarian.

On their third morning in Quentis, Odessa finds brown hair dye in her room—a bullying prank sent by Margot. Rather than yield, she sells her throwing knives, which she cannot bring herself to use after killing Banner, and buys new clothes.

At the training center, Ransom trains Evie with a wooden sword while Mae spars with Brix, the captain of the guard under weapons master Gable’s approving eye. Ransom then trains Odessa before this audience, pinning her with his enhanced speed. Afterward, Gable reveals that he knew Odessa’s mother—who was extraordinarily fast with a blade, as quick as Ransom—and invites Odessa back for training. She accepts, hoping to learn more about her mother. King Cross appears in the doorway and stares Gable down, forcing him to retreat.

Caspia finishes her personal history—including private details about her changed blood and heightened senses—and asks Faxon to hide one completed journal in the stacks, keeping the second. She already had a blurry vision of Kos finding the hidden journal someday.

In the atrium, Andreas’s formidably composed mother Malynn—the ship’s namesake—stops Caspia, eyes her coldly, and declares her a corrupting influence on her son before leaving without asking her name. That evening Andreas tells Caspia that he has formally dissolved his betrothal: His former fiancée was in love with another man and only needed the facade maintained until her suitor returned. He then drops to his knees and proposes in the rain; Caspia says yes. When he offers to help her seek vengeance, she declines—she wants instead to find the truth about her mother’s disappearance.

A violent nightmare causes Ransom to wake disoriented and pin Odessa against the headboard, snarling. Her voice brings him back; he is horrified. Odessa notes the Lyssa veins spreading further and understands that his control is deteriorating. He wants to sleep apart; she refuses.

Summoned the next morning to King Cross’s study, Odessa notices a map of Calandra marked with notations far beyond Turah, suggesting that her father has broader ambitions of conquest. She recalls a hidden wall compartment secured with a brass key. The king informs her that Ransom broke a guard’s arm and warns her against further insolence. When he orders her to stay away from Gable, she refuses unless he explains her mother’s fate, accusing him directly of having killed her; he neither confirms nor denies it. He admits that he will kill the Voster to stop the migrations if necessary. When Odessa reveals that she can feel Voster magic, he is visibly shaken, orders her to avoid the brotherhood, and abandons his own study.

Caspia is accosted in the castle foyer by Chapman Leek, a popular journalist who has been printing invented stories about her origins. She reflects that she and Andreas were secretly married in the castle sanctuary the morning after his proposal, though rumors are spreading. She escapes into the library, where journalists are barred.

Faxon gifts her his personal copy of Sonnet’s Ninety. Caspia theorizes that its tales may be disguised history and questions why Calandran written records seem to begin only with the first migration, suspecting that older history was deliberately erased. An unfamiliar Voster in pale blue enters, and his presence causes Caspia intense pain until he suppresses his magic. He tosses her a worn gray leather book, signals for silence, and leaves. Faxon notes that breaking a Voster blood oath means death. Touching the first blank page delivers a sharp sting; the next page is written in an old language. Caspia stops Faxon from translating—she already knows what it says: “For the Starling” (338).

Alone in the crux gallery, Odessa tears up page borders from her sketchbook—strips that, if assembled, would map the road to Allesaria—and crumples them rather than preserve the route.

Margot enters and makes a rare confession: Her father drowned in her youth; during the last migration she fell gravely ill, and her mother forced open the quarantine door to lead her home, only to be killed by a looter inside. Margot took her mother’s laundry job and worked her way up to queen—a role she describes as being married to a man in love with a ghost. She explains that the king’s silence about Odessa’s mother is grief, not cruelty, and that the hair dye was sent because Odessa shares her mother’s hair.

General Hawksley arrives and addresses Margot as darling, revealing their affair, then retreats quickly on seeing Odessa, who promises silence. On leaving, Odessa remarks that the family’s secrets will be their undoing; Margot replies they may equally prove their salvation.

Caspia has a vision of a gala dinner where she uses the wrong fork and draws Malynn’s contempt while Andreas defiantly mirrors her mistake. In the present, she hides from Malynn in a parlor, laboring through an etiquette book before an upcoming gala. Andreas finds her; when she admits her fear of humiliating him, he throws the book into the fire and promises to coach her himself.

He leads her to the library, where Faxon is shelving books alongside Kos—who announces that he wants to be an explorer or a librarian—and secures a small, lockable carrel as a private workspace for her. There, she tells him that she must speak with the Voster who gave her the gray, leather-bound book. The book tells the story of six monks who, near starvation, bargained with demons for magic and immortality and eventually became the magicians worshipped as the Six. Caspia considers the number significant; Andreas says the inquiry feels dangerous.

Odessa escorts a tense Ransom to Alore’s workshop. She has since learned the full story of Ransom’s assault on a guard: The guard was brutally whipping a horse, turned the whip on Ransom when confronted, and Ransom broke his arm. Alore has already re-created Luella’s elixir and now needs to replicate the infection to develop a cure. Ransom objects; she promises to destroy all notes and not weaponize the result. Having already taken a saliva sample from Faze, she collects a sample from Ransom—testing Luella’s theory that Lyssa forms when the elixir fuses with monster saliva. She prepares to inject rats with different combinations. Ransom leaves without a word.

At the training center, Odessa finds Mae training Evie with a real dagger while Faze is collared too tightly. Mae deliberately slices Evie’s favorite shirt, enraging the girl. Odessa intervenes. Ransom arrives and disarms Mae; when she hurls a hidden knife at him, he catches it and pins it to the wall beside her head. Gable clears the room. Mae breaks down, whispers that she was supposed to be the Sparrow and should have left instead, then runs. Odessa and Evie together steady Ransom; he pulls them both close. Odessa catches a glimpse of her father’s crown in the doorway.

The Voster in pale blue arrives at Caspia’s carrel, having suppressed his magic to spare her pain, and introduces himself as Hain. He confirms that some Voster, himself included, worship the Divine rather than the Eight, their original god having abandoned them.

Unable to speak directly because of magical oaths, Hain guides Caspia’s deductions. She concludes that Calandra is cursed by residual magic from the six evil magicians, which accounts for starburst eyes, Voster abilities, and the Starling’s loss of control. Hain confirms that he came from Kenn long ago, is long-lived but not immortal, and wants to break his bond to this land to return to where his family is buried. He warns Caspia to hide her truths and tell no one of their meetings, as his brothers would kill her to protect their power. He adds cryptically that they will meet again before her time, suggesting that he knows something she does not.

After settling a withdrawn Evie to sleep, Odessa finds Ransom at the window hoping to spot Zavier and Cathlin’s ship. He confesses to feeling caged and admits that he nearly killed Mae—the Lyssa is eroding his self-control. He shares memories of his mother, Luella: her terrible singing, her fear of snakes, her love of apples. He asks Odessa to promise that Evie will know about Luella if he dies.

When Odessa says she loves him, he answers only that she must not forget, and she feels the absence keenly. He carries her to bed, and they spend the night together. As she drifts off, she dreams that he says it back.

During a fierce windstorm, Caspia rereads Sonnet’s tale of the pythoness and theorizes that Sonnet reversed the roles—the pythoness was a Starling fighting the magicians, who were enemies of the Starlings. An exhausted Hain arrives and confirms it: The story is Caspia’s own family history, and the Starling—one of her ancestors—defeated the six magicians. He reveals that he caused the windstorm by draining his magic, allowing him to speak more freely despite his oaths.

Caspia reconstructs events: The Starling sealed the defeated magicians’ remains in glass orbits; their magic seeped out over time, cursing Calandra and forcing the Starling to flee to Kenn. When Caspia deduces that destroying the orbits would break the curse and free Xandra, Hain’s silence confirms it. She understands this would also end the Voster’s power; Hain accepts this, having long since lost the capacity to feel and wanting to return to his family’s graves. He warns that his brothers will try to stop her, names Brother Nold as trustworthy, and says farewell as his magic returns and causes him visible pain. Outside, the wind immediately dies.

Odessa finds Ransom dozing in the bath, eyes green, but a Lyssa vein now reaching toward his throat. She tells him that she plans to visit Mae; they also agree to release Faze together after the migration.

Leaving the suite, she overhears Margot confront King Cross, demanding he tell an unnamed woman the truth or she will. The king obliquely threatens her over her affair with General Hawksley. Margot finds Odessa in the hall, deflects her questions, but confirms that Mae is in trouble.

In the study, Odessa asks for Brother Dime’s location; her father lies twice. She tells him he was never good enough for her and leaves. In the corridors, she spots pale blue robes she believes belong to Brother Skore—the Voster priest who abandoned them in Ozarth—and pursues him but loses him in the crowd. Emerging into the gardens, she hears Evie scream: A guard tried to steal Faze, and Ransom has broken the man’s nose. Odessa suspects the harassment is being orchestrated, possibly through Mae’s connection to Captain Brix, and spots Skore watching from a castle window. Before she can approach him, Ransom pulls her away: Skore is Kennin—a radical Voster faction—and anyone associated with the Kennin is put to death by the High Priest.