Sarah J. Maas released the sixth book in her A Court of Thorns and Roses (ACOTAR) series, A Court of Splintered Harmony, on Tuesday. The novel launches a new chapter in the series' world, the Valkyrie Cycle, and picks up threads from A Court of Silver Flames and House of Flame and Shadow. As Night Court ruler Rhysand, High Lady Feyre and their inner circle contend with tensions among themselves and the threat of death-god Koschei escaping his magically sealed lake, the book plants clues about several characters and the magic surrounding them.
Koschei's captives and a forgotten bloodline
Koschei never appears in physical form, but his threat runs through the story. Vassa, the human queen he has imprisoned, tells Feyre and Rhysand that he usually communicates by voice and keeps people at a distance. Lucien adds that Feyre's father was among the few people ever to approach him.
Vassa also reveals that the women Koschei has imprisoned are distant relatives of the faerie warrior who trapped him in the lake. The clue echoes an earlier scene in A Court of Wings and Ruin, when the Bone Carver told Feyre and Cassian, Rhysand's general, that the warrior's bloodline had disappeared but lingered in some human families. He said she might once have been his "salvation," without explaining why. Her name has been lost to history, and the book does not reveal whether a later installment will identify her.
The Bone Carver also said he and his siblings came from another world. Maas has increasingly connected the worlds of A Court of Thorns and Roses, Crescent City and Throne of Glass in recent years, leaving open the possibility that Koschei's origins could link the series. A Court of Splintered Harmony offers no answer yet.
Azriel's shadows leave him without warning
Azriel's point of view offers a closer look at his shadows, which act independently: they scout their surroundings and relay information about the weather and other people's moods. They also react differently to particular people. At times, they investigate intruders in the Night Court; at others, they avoid certain beings, including the shadow creature Bryaxis.
The shadows seem unable or unwilling to approach Elain Archeron. Whether she is in a dining room or a temple, they stay out of the room. Azriel regards their disappearance as a "gift," but their absence leaves him without warning on two occasions. At Nyx's naming ceremony, he does not sense Bryaxis approaching and believes Elain drove the shadows away. Bryaxis then attacks the inner circle, with Azriel's lack of awareness contributing to the events.
Later, the shadows also fail to alert Azriel that Lucien is waiting outside Elain's bedroom. The two men come to blows. Rhysand orders Azriel out of the house, and Morrigan rebukes him. It is the last time Azriel sees Elain in the book; as events unfold, she leaves Prythian.
Their response to Gwyn contrasts with their avoidance of Elain. After the confrontation, Azriel goes to the House of Wind to retrieve his belongings. When he hears Gwyn singing, his shadows rush past him and gather at her feet until he calls them back. Their different reactions to the two women remain an unresolved thread.
Nesta, the Prison and the signs of the Dusk Court
Nesta Archeron remains central to the story. She clashes with the Night Court but also helps save the group when Bryaxis appears again. She continues to feel drawn to the Prison island, which she and Bryce Quinlan explored more deeply in an earlier story. Their discovery suggested it may once have been the eighth court, the Dusk Court.
Whenever Nesta approaches the Prison, the narration returns to images of dusk: a purple sky, the first star of the night and the northern horizon where daylight meets darkness. The recurring imagery ties her to the island and to the possibility that the Dusk Court once existed there.
Whether Nesta also shares a connection with Rhysand remains unclear. When she tries to winnow to the island, she nearly drowns and sees something glowing below, as if it is telling her, "Find me." After Rhysand rescues her, he says he heard her call the same words in his mind. Nesta may simply have been calling for help; alternatively, both may have been drawn by an enchanted object. Rhysand's bloodline gives him a connection to the Prison, but the novel does not confirm what happened.
The title's reference to splintering also reflects Nesta and Cassian's relationship. Nesta asks her House for advice about her feelings, and it shows her fragments of a wooden training post she broke during practice. She sees the pieces as a reflection of their relationship: their shared training, commitment and growing love could be damaged by her own choices. The image prompts her to tell Cassian how she feels, while leaving the possibility that the title also points to a fracture between them.
Spring for Elain, silver for Feyre
Recurring imagery also shapes the portraits of other characters. Elain is closely associated with spring. Azriel describes her as a spring whisper and as beautiful as a spring morning. Lucien mentions her floral scent; she tends flowers and decorates for Nyx's naming ceremony with blooms.
Feyre, by contrast, is linked to silver. Clotho makes a piece of woven silver fabric for Feyre and Rhysand to use at the ceremony. Later, while dining with them, Lucien notices silver threads running through a tapestry on the wall. He says his magical eye has seen a silver halo around Feyre since they first met, and that the "silver light" has grown stronger as she has found love and happiness in the Night Court.
Gwyn's singing and hints about Azriel's power
Both of Gwyn's appearances in the book involve singing. Nesta thinks her rich contralto has enough power to carry a song on its own. Azriel finds her voice both unfamiliar and strangely familiar, as if starlight were falling down a staircase in time with the music. Nesta also notices that Gwyn seems to glow when she sings, with candlelight appearing to lean toward her. The novel suggests there may be more to her music than performance, but does not explain how it might work magically.
The book also draws a possible connection between Gwyn and Azriel through color and magic. Azriel says his Siphon is cobalt blue edging toward turquoise, a color he has never understood. When startled, Gwyn throws an Invoking Stone at him; it flashes turquoise fire, and her eyes are described as a similar blue-green. Azriel senses magic in the stone that resembles his Siphon, yet differs from it. Whether the similarities are connected is left for a future story.
Azriel and Gwyn share a view of themselves as monsters
Azriel calls himself a monster several times, describing himself as adept at lurking in shadows and extracting information through secrets or painful methods. Other characters in the ACOTAR series have also been treated as monsters, but Gwyn is one of the few in this book who sees herself that way.
In a chapter from Gwyn's perspective, she says she has avoided Valkyrie training and the world outside the temple because she enjoyed killing her enemies during the Blood Rite. At the chapter's end, she seems to hear Bryaxis mocking her, as if it knows that "there is more than one monster in here." That shared self-image sits alongside the clues about their powers as another possible thread for later books.
Mor takes Elain away from the Night Court
At the end of the novel, Elain asks Mor to take her to Vallahan. Mor agrees, believing Elain needs time away from Azriel, Lucien and the Night Court's inner circle. The decision follows Mor's earlier efforts to give the Archeron sisters space. In A Court of Mist and Fury, she took Feyre away from the Spring Court, where Tamlin had kept her, and later brought her to the cabin after Feyre learned Rhysand had concealed their mating bond. In A Court of Silver Flames, Mor also took Nesta to Emerie's home and arranged for Gwyn to keep her company.
Those earlier breaks gave Feyre and Nesta time to reconsider their feelings. The book does not reveal what Elain will decide after going to Vallahan. What it establishes is that she leaves Prythian at the end of the story, with Mor accompanying her away from her usual relationships and the Night Court's circle of power.