A Court of Splintered Harmony is the upcoming sixth book in Sarah J. Maas’s bestselling A Court of Thorns and Roses (ACOTAR) series. Published by Bloomsbury, the book is scheduled for release on October 27, 2026, and its official synopsis describes a growing threat from Koschei the Deathless, political tensions across the fae territories, and efforts to rebuild fractured alliances. As of October 25, 2026, the book is still awaiting its scheduled publication date.
A Court of Splintered Harmony
Introduction
Fantasy readers have a new reason to return to Prythian. A Court of Splintered Harmony by Sarah J. Maas is the sixth book in the popular A Court of Thorns and Roses series, also known as ACOTAR. Bloomsbury Publishing lists the novel for publication on October 27, 2026, with editions planned in print and digital formats.
The upcoming novel promises a story shaped by dangerous magic, political divisions, damaged relationships and the return of a long-standing supernatural threat. Its official synopsis identifies Koschei the Deathless as a central danger, while the Night Court faces the challenge of protecting vulnerable people and rebuilding alliances after the devastating Hybern War.
The book’s central idea is reflected in its title. Harmony once existed between important characters and territories, but betrayal, conflict and competing ambitions have fractured those connections. The question is whether those divisions can be repaired before a larger threat spreads across the fae world.
For readers following the series, the release is significant because it continues the larger story of Prythian rather than introducing an unrelated fantasy setting. However, the publisher’s synopsis does not reveal every character’s role or the complete direction of the plot. Expectations about individual romances, point-of-view characters and major revelations should therefore be treated as speculation until supported by the published text or an official announcement.
Publication status checked October 25, 2026. The book’s listed release date is October 27, 2026.
What Happened? The Upcoming ACOTAR Book Explained
A Court of Splintered Harmony is being presented by Bloomsbury as the sixth book in the main A Court of Thorns and Roses series. The publisher’s description sets up a conflict involving the growing influence of Koschei, threats to human territories and divisions among the people responsible for defending the Night Court.
The premise brings together three major story elements.
1. Koschei the Deathless is becoming a greater threat
The official description says Koschei has been bound to a mountain lake for millennia. His influence is now spreading across the fae territories, and he is attracting powerful allies who want to reclaim the human lands.
This development raises the stakes beyond a personal disagreement or a single court’s internal politics. The threat could affect the balance of power across multiple territories, placing pressure on those who have previously worked together.
The publisher has not disclosed the full details of Koschei’s plans in the available synopsis. Readers should not assume that every theory about his allies, abilities or ultimate objective has been confirmed.
2. The Night Court faces internal divisions
The Night Court intends to protect innocent people from the emerging danger. However, the aftermath of the Hybern War has left Prythian struggling to rebuild, and the official synopsis describes unity as increasingly difficult.
The problem is not simply whether the Night Court possesses enough power to confront an enemy. Its leaders and protectors must also deal with betrayals and newly revealed truths that have damaged relationships.
These tensions could complicate decisions about trust, leadership and cooperation. Even powerful characters may struggle to coordinate their efforts if they cannot agree on whom to believe.
3. Old alliances may need to be restored
The publisher’s description emphasizes the need to rebuild relationships and revive former alliances. That suggests the story will examine how characters respond when their shared history no longer guarantees trust.
In a fantasy series where political loyalties and personal bonds often overlap, rebuilding an alliance can be as difficult as winning a battle. Characters may need to confront past choices before they can work together against a common enemy.
These three elements form the confirmed foundation of A Court of Splintered Harmony. The exact sequence of events, character deaths, romantic developments and ending remain unknown from the official synopsis alone.
Key Details About A Court of Splintered Harmony
A Court of Splintered Harmony
The Valkyrie Cycle, Movement I
Author: Sarah J. Maas
Publisher: Bloomsbury Publishing
Scheduled release: October 27, 2026
Listed length: 352 pages
Series: A Court of Thorns and Roses
Genres: Fantasy, romance and romantasy
Bibliographic details: official Bloomsbury listings. Editions may have different ISBNs, formats and regional prices.
Other important details include:
- Series position: Bloomsbury identifies the book as the sixth ACOTAR novel.
- Main supernatural threat: Koschei the Deathless.
- Central setting: Prythian and the wider fae territories.
- Political conflict: Efforts to protect innocent people while rebuilding cooperation after the Hybern War.
- Emotional conflict: Betrayals, revealed truths and damaged relationships.
- Availability: Bloomsbury’s US listing offers hardback and ebook options, while its Indian listing displays paperback, hardback and ebook formats.
Readers should check their regional publisher listing for the exact format, price, ISBN and availability relevant to them.
Background: Understanding the A Court of Thorns and Roses Series
To understand why the next book matters, it helps to know the broad progression of the ACOTAR series.
A Court of Thorns and Roses
The first novel introduces Feyre Archeron, a human whose life becomes intertwined with the fae world. The story establishes the series’ blend of fantasy, danger, romance and political tension.
A Court of Mist and Fury
The second novel expands the world and develops the relationships, loyalties and personal choices that shape later events.
A Court of Wings and Ruin
The third book brings major conflicts involving Prythian’s courts and the threat posed by Hybern to a major turning point. The aftermath of this war remains important to the premise of the upcoming novel.
A Court of Frost and Starlight
This shorter installment explores the aftermath of conflict and the characters’ attempts to adjust to a changed world. It provides a bridge between major story arcs.
A Court of Silver Flames
The fifth book focuses heavily on Nesta Archeron, her struggles and her developing connections with other characters. It also features the Valkyries, whose story could be relevant to the framing of the upcoming installment.
A Court of Splintered Harmony
The sixth book is positioned to continue the larger story through a combination of external danger and internal divisions. The official description points toward Koschei, the Night Court and the difficult task of restoring alliances.
Bloomsbury’s series listing also includes A Court of Forgotten Melody. However, the existence of a title in a series listing should not be treated as confirmation of every detail about its plot or how it will follow the sixth book.
What Makes The Valkyrie Cycle Important?
One of the most important details about A Court of Splintered Harmony is its subtitle: The Valkyrie Cycle, Movement I. This wording connects the novel to a larger narrative plan rather than presenting it as an entirely self-contained installment.
Sarah J. Maas and Bloomsbury have announced two upcoming ACOTAR books:
1. A Court of Splintered Harmony
October 27, 2026
The sixth book, designated Movement I of The Valkyrie Cycle. Its published description establishes the threat posed by Koschei and the divisions facing the Night Court.
2. A Court of Forgotten Melody
January 12, 2027
The announced seventh book. Its title and scheduled publication date are confirmed by the author and publisher, although its complete plot should not be inferred from the title alone.
The author’s official website lists both publication dates, and Bloomsbury presents the releases under the Valkyrie Cycle banner.
This closely spaced publication schedule gives readers a clearer timeline for the next stage of the story. It also means that anyone following the series should distinguish the October release from the January installment rather than treating them as a single book.
The precise relationship between every planned movement and future volumes should be checked against official announcements as they appear. Readers should avoid assuming that all character arcs will conclude in the sixth book.
What Officials and Organizations Have Said
Because this is a publishing announcement rather than a court case or political event, the most relevant official information comes from the author and publisher.
Sarah J. Maas’s announcement
Maas revealed the upcoming book titles and covers in August 2026. The promotional line associated with A Court of Splintered Harmony is “What was broken will be remade.” The announcement established the title and helped build anticipation ahead of the October publication date.
That phrase also fits the novel’s official synopsis, which focuses on rebuilding relationships and restoring alliances in a divided world.
Bloomsbury Publishing’s confirmation
Bloomsbury’s official listings identify Sarah J. Maas as the author, describe the novel as the sixth ACOTAR book and provide the October 27, 2026, publication date.
The Indian listing includes paperback, hardback and ebook formats, with displayed prices of ₹999, ₹2,999 and ₹799, respectively. These are listed prices and may change depending on edition, retailer or availability.
The publisher’s plot description
The official synopsis is the clearest confirmed source for the story’s main conflict. It establishes Koschei’s growing threat, the continuing consequences of the Hybern War and the Night Court’s struggle to overcome internal divisions.
It does not, by itself, confirm every rumored character pairing, major twist or ending circulating among fans.
Why A Court of Splintered Harmony Matters to ACOTAR Readers
The book matters for several reasons beyond the arrival of another fantasy novel.
It continues unresolved storylines
The end of A Court of Silver Flames leaves readers with questions about the wider world, the consequences of past decisions and the relationships among major characters.
Koschei’s threat provides a way to continue the larger conflict. Rather than treating the previous war as the end of the world’s troubles, the new story suggests that its consequences are still unfolding.
It brings personal relationships into a larger conflict
The official synopsis emphasizes both external danger and internal betrayal. This combination is important because the characters’ personal relationships may influence their political decisions and ability to cooperate.
The publisher has not confirmed every character’s role, so it is too early to state precisely how each relationship will develop. Nevertheless, the tension between personal trust and collective responsibility is central to the published premise.
It gives the series a new publication timeline
The announcement of A Court of Forgotten Melody for January 2027 gives readers a second confirmed date to anticipate.
For fans who have waited for the next installment, this is useful information for planning their reading schedules and deciding whether to revisit earlier books before the new release.
It expands the story’s future possibilities
A conflict involving Koschei and several fae territories could have consequences beyond one court. The premise leaves room for broader political developments, shifting loyalties and new revelations.
These are possibilities suggested by the setup, not confirmed descriptions of events that will occur.
What Happens Next?
As of October 25, 2026, the next confirmed milestone is the scheduled publication of A Court of Splintered Harmony on October 27, 2026. Bloomsbury is accepting preorders through its regional publishing listings and participating retailers.
Readers can take the following steps:
- Check the official book listing. Confirm the edition, price, ISBN and release information for your country.
- Review the earlier novels. Revisiting A Court of Wings and Ruin and A Court of Silver Flames may help refresh important background before starting the new installment.
- Watch for official updates. The author’s website and Bloomsbury’s ACOTAR pages are useful places to verify announcements.
- Keep the next release in mind. A Court of Forgotten Melody is scheduled for January 12, 2027.
Sarah J. Maas+1
The complete ending of the new story, the ultimate fate of Koschei and the resolution of individual character relationships cannot be established from the current publisher synopsis. Those questions will require the published text or further verified announcements.
Frequently Asked Questions
1. What is A Court of Splintered Harmony about?
A Court of Splintered Harmony follows the growing threat of Koschei the Deathless and the Night Court’s efforts to protect innocent people while rebuilding alliances damaged by betrayal and the aftermath of the Hybern War. This premise comes from Bloomsbury’s official synopsis.
2. When does A Court of Splintered Harmony come out?
The scheduled publication date is October 27, 2026. Bloomsbury lists the book in multiple formats, including print and ebook editions.
3. Who wrote A Court of Splintered Harmony?
The novel is written by Sarah J. Maas, the bestselling author known for the A Court of Thorns and Roses, Throne of Glass and Crescent City series.
4. Is A Court of Splintered Harmony ACOTAR book 6?
Yes. Bloomsbury identifies it as the sixth book in the A Court of Thorns and Roses series. Its full subtitle is The Valkyrie Cycle, Movement I.
5. Who is Koschei the Deathless?
Koschei the Deathless is the supernatural antagonist identified in the novel’s official synopsis. He has been bound to a mountain lake for millennia, but his influence is spreading across the fae territories and he is attracting powerful allies.
6. How many pages does A Court of Splintered Harmony have?
Bloomsbury lists the first US hardback edition at 352 pages. The Indian paperback listing also gives a length of 352 pages. Page counts can vary by edition and format.
7. Will there be another ACOTAR book after A Court of Splintered Harmony?
Yes. The announced next installment is A Court of Forgotten Melody, scheduled for January 12, 2027. It is listed as the seventh ACOTAR book.
8. Can readers preorder A Court of Splintered Harmony?
Yes. Bloomsbury’s official US and Indian websites provide book listings with purchasing or preorder options, subject to regional availability. Readers should check the relevant edition and retailer for current pricing and delivery details.
9. Do readers need to read the earlier ACOTAR books first?
Reading the earlier books is strongly recommended. The new novel’s premise depends on the history of Prythian, the Hybern War, the Night Court and relationships established in previous installments. Starting with the first book will provide the most complete context.
10. Is the complete plot of A Court of Splintered Harmony confirmed?
No. The broad premise, author, publisher and release date are confirmed, but the official synopsis does not disclose the entire story. Claims about specific romantic pairings, unexpected deaths or the ending should be treated as unconfirmed unless verified through an authoritative source or the published book.
