In The Burn, Kaan grieves Raeve’s departure to seek revenge against Rekk Zharos, a bounty hunter who murdered her friend, Essi. He tends to the fallen moon, Slátra, promising to find its missing pieces. A parchment lark from Terros confirms that Rekk is being transported to Bothaim.

Kaan summons Borg, a mist-like waif that feeds on painful memories in exchange for information. To learn the whereabouts of his sister Veya, his niece Kyzari, and his alchemist Roan, Kaan offers Borg a traumatic memory of his abusive father, King Ostern. Borg reveals that Roan is imprisoned in Bothaim’s dungeon, awaiting trial before the Tri-Council in three days for allegedly stealing the Book of Voyd.

Kaan’s second-in-command, Pyrok, arrives with Lumo, a young miskunn—a small, furry creature capable of seeing the future, though its visions are not always reliable. Lumo delivers a vision: A catastrophic moonfall is coming, involving many moons falling at once.In The Burn, Kaan grieves Raeve’s departure to seek revenge against Rekk Zharos, a bounty hunter who murdered her friend, Essi. He tends to the fallen moon, Slátra, promising to find its missing pieces. A parchment lark from Terros confirms that Rekk is being transported to Bothaim.

Kaan summons Borg, a mist-like waif that feeds on painful memories in exchange for information. To learn the whereabouts of his sister Veya, his niece Kyzari, and his alchemist Roan, Kaan offers Borg a traumatic memory of his abusive father, King Ostern. Borg reveals that Roan is imprisoned in Bothaim’s dungeon, awaiting trial before the Tri-Council in three days for allegedly stealing the Book of Voyd.

Kaan’s second-in-command, Pyrok, arrives with Lumo, a young miskunn—a small, furry creature capable of seeing the future, though its visions are not always reliable. Lumo delivers a vision: A catastrophic moonfall is coming, involving many moons falling at once.

Kyzari is held in a small, filthy cell. She regrets sending a signed parchment lark to Kaan, who she believes is her uncle, with a coded message hidden in her signature, fearing it will implicate him in her disappearance. She believes she was lured into a trap. The god Caelis, whom she loves, is imprisoned within a stone embedded in her forehead, but if she dies in this prison, he will be released and will destroy the world to avenge her death.

A small parchment lark she sent to her deceased mother long ago mysteriously returns—the letters “nee” inscribed on its abdomen. The lark pesters her until she unfolds it and finds a handwritten response to her long-ago message, in which she said that she needed her mother: “No you don’t” (18). She notices that the handwriting resembles scratches on her cell wall and infers that a child may have been imprisoned there before her and escaped (in fact, the child imprisoned here was her mother, Elluin, but she does not know this). This gives her renewed hope and strengthens her resolve to fight for freedom.

Veya flees the palace in Arithia carrying a stolen diary belonging to the late Queen Elluin, which reveals that Kaan, not King Tyroth, is Princess Kyzari’s true father. She plans to escape and return to The Burn to deliver the truth to Kaan.

In a storage cupboard, she encounters Ayda, the woman she had impersonated via glamour. Ayda awakens and, through a mystical connection, seems to know the diary’s contents. Veya realizes Ayda is pregnant with Tyroth’s child and urges her to flee. Ayda refuses. Veya leaves, determined to escape Arithia and expose Tyroth’s deception.

Raeve’s consciousness is trapped beneath the ice of a vast, frozen lake inside her mind while her primal “Other” self controls their shared body to brutally torture and kill Rekk Zharos. Unable to break through the ice ceiling, Raeve dives into the dark water to find a tool.

She discovers an underwater nest filled with silver, egg-shaped memory stones. Among them is a large, pearly tooth. To retrieve it, she must move a teardrop-shaped crystal, which unleashes a painful, sorrowful song from Rayne—the goddess of water—into her mind. After securing the tooth, she accidentally touches another memory stone, triggering a vision of her Other’s past.

This chapter takes the form of a flashback from “The Other”—Elluin’s dragon, Slátra. Long ago, a young fae male stole her most precious egg. Hunting him, she discovers him in a snow den, protected by a small, blue-eyed fae child fighting off vicious doomquills to defend the nest—Elluin.

Impressed, The Other kills the remaining predators. Inside, her female hatchling emerges from the stolen egg with a malformed wing. The brave child climbs onto The Other’s back and commands her to fly. Struck by her courage, The Other accepts her as a rider, and they form an immediate bond.

The memory of her past life as a Moonplume shatters Raeve. She reflects on the blue-eyed child’s bravery and is filled with shame at what a coward she has become. Using the dragon tooth, she smashes through the ice, breaking free from the mental prison and rejoining her physical body.

Veya, watched by a threatening Moltenmaw dragon, escapes the Arithian palace by cutting her palm and smearing her blood on a secret gate that opens only when fed blood. Woozy from blood loss, she heads toward the mountain burrow where her attendant, Rasha, and Moltenmaw dragon, Furn, are hiding. A psychic warning from Bulder—the god of ground—alerts her to danger.

She finds Furn dead, impaled by obsidian spikes. Ambushed by Tyroth’s elite Thorns, she watches Rasha be executed. Veya attempts to ask Bulder to intervene for her, which partially succeeds, but an iron arrow strikes her ankle, severing her connection to Bulder. Wounded, she escapes into a narrow crevice.

Raeve has regained control of her body. Rekk Zharos is dead, horrifically mutilated by her Other. Her attendant, Utris, arrives to help dispose of the body in an underground den inhabited by an anthe, a creature that consumes flesh and soul.

A parchment lark arrives from Kaan, warning of the imminent moonfall and urging her to take shelter in his mother’s mountain retreat. He provides a hidden bunker’s location, telling her to contact him if needed, signing off as “Yours.”

Veya flees through a volcanic cavern. Cornered at the exit by Tyroth, she is impaled with obsidian spears. He uses a forbidden power to forcibly restore her repressed memories.

Veya relives the truth: Their father, King Ostern, forced her to poison the entire Neván royal family, sparing only Elluin. Afterward, a Runi named Mior erased Veya’s memories twice; following the second erasure, Mior was killed. Shattered, Veya collapses. Tyroth summons his decrepit dragon, Bharon, and commands him to eat her. Instead, Bharon gently picks her up and flies north, rescuing her.

Disguised in Runi robes, Kaan and Pyrok attend the trial of Kaan’s alchemist, Roan, before the Tri-Council in Bothaim. Roan is accused of stealing the Book of Voyd but insists it vanished. He reveals a rumor that the Citadel is protected by secret runes capable of deflecting moonfalls, causing uproar.

The Tri-Council, unable to penetrate Roan’s mental defenses, finds him guilty. He is publicly fire-lashed and sentenced to be fed to the anthe. As Wardens drag the injured Roan away, Kaan and Pyrok resolve to follow them into the Citadel’s depths and rescue him.

Raeve and Utris make their way through outer Bothaim, carrying Rekk’s magically concealed body. They witness widespread panic as citizens, having learned of the impending moonfall and the Citadel’s protective runes, rush toward the city center seeking safety. Raeve confirms the moonfall to Utris, and they press on with their plan.

Raeve and Utris enter the tunnels beneath the Citadel. Raeve is shocked that the powerful runes designed to nullify the Creators’ voices have no effect on her. They reach the cavern with the underground lake where the anthe resides.

After disposing of Rekk’s body, they see Wardens bringing another prisoner: Roan. Raeve determines to rescue Roan. She chokes Utris into unconsciousness to prevent him from stopping her. As she prepares to act, a second boat appears, carrying Pyrok and, to her horror, Kaan, also attempting a rescue.

Seeing Kaan in mortal danger compels Raeve to act. She removes the iron ring that normally blocks the piercing voice of Clode, the Air Goddess. She sings to Clode, asking for help. Clode’s power shoves the boats toward shore, crashing them and throwing Kaan, Pyrok, and Roan into the water as the anthe emerges.

To save them, Raeve recalls a fragment of Rayne’s song. Singing the sorrowful, broken melody, she parts the lake’s waters, creating a dry path while trapping the anthe in a sphere of churning water.

Raeve struggles to maintain control. She creates a wave to force Kaan toward the exit, but he defies her and descends to help. The anthe breaks partially free and slashes Raeve’s cheek. Enraged, Raeve confronts the beast, their eyes locking in a territorial challenge.

The anthe tries to dominate her mind, but Raeve screams back with ancient, inhuman power. Kaan reaches her and drags her toward the exit. She maintains the psychic standoff with the anthe, which pursues them until they are safely out.

Safe in the exit tunnel, a furious Raeve pins Kaan against the wall with one of his own dragonscale blades. They argue about the risks each took. Raeve confirms that Rekk is dead. Kaan observes that her bloodlust remains unquenched and must be tethered to someone else.

She agrees to take shelter at his mother’s retreat, but only if he stays with her. He protests, citing his duties, but she insists, promising to protect him. Their argument is cut short when Pyrok calls down, warning of a new problem above.

Raeve ascends with a singular focus: keeping Kaan alive. They emerge into a ventilation shaft and see the Tri-Council’s Moltenmaw battalion patrolling. Disguised in scavenged robes, they enter the High Treasury, a vast white chamber filled with identical doors.

Roan identifies the door to the Book of Voyd’s chamber. Raeve sees a silver shimmer—a being she calls the “Fate Herder”—slip through. Drawn by an urge, she follows, stepping over the threshold.

The warrior Grihm seeks to bond with a Sabersythe dragon. In volcanic Gondragh, he prepares a magma nest. He is interrupted by another rider, Kilíth, whose hut was destroyed and whose Sabersythe egg is about to hatch.

Grim allows Kilíth to use his nest, saving the hatchling. Kilíth warns Grim that the Vihn Peaks are terrorized by an especially ferocious dragon—the Great Silver Sabersythe whose eggs Grihm has come to find. Grihm is undeterred.

Kaan, Pyrok, and Roan watch as Raeve effortlessly walks past the lethal runes guarding the Book of Voyd’s chamber. The book rests on a central plinth. Roan confirms its identity and explains that it vanished when he previously tried to examine it. He believes it contains the runes that can protect against moonfalls.

Seeing the book as a tool to protect Kaan’s people, Raeve decides to steal it. Roan warns that touching it has driven others “mad.” Heeding this, Raeve wraps her hands in her cloak and lifts the ice-cold artifact.

In the Citadel courtyard, a riot is taking place. Roan uses drops of Kaan’s blood—diluted with melted snow—to create an explosive rune. The blast is larger than intended, and the drain on Kaan’s blood causes him to lose consciousness.

Fleeing with Kaan, they are confronted by a Tri-Council member. Raeve uses Clode to fight off the Council member’s soldiers and silence his song. A Moltenmaw attacks; Raeve creates an air barrier, and the hidden runes on her arms glow with power. As they escape, guards fire iron pins; Kaan, just woken, shoves Raeve aside and takes the hits himself, eyes glowing with the fire of his dragon, Rygun.

Energized by Rygun, Kaan barely feels the iron pins. He leads the group through disorienting mist, tracking his dragon. They find Rygun on the ground, having killed the attacking Moltenmaw and its rider.

Surrounded by guards, Kaan has Raeve mount Rygun, then climbs on behind. He commands Rygun: “Burn it all” (107). Raeve tries to hide her fear, but Kaan, infused with Rygun’s heightened senses, can hear her racing heart and smell the adrenaline coursing through her body. Rygun unleashes fire, incinerating the soldiers. They launch into the sky, escaping Bothaim as the Citadel’s battalion gives chase. Kaan understands that he has started a war.