Book News
Threshing Day by Rebecca Yarros: Out Now, and Where It Fits in the Empyrean
Quick answer
Threshing Day is out. Entangled published it on September 29, 2026, on schedule. It is a companion collection of 13 stories, each following a different rider (Xaden among them) on the day a dragon chose them at Basgiath. It is not Empyrean Book 4. It sits at #3.5, after Onyx Storm, and does not continue Violet and Xaden’s story. Book 4 has no title or date yet. Yarros says she is writing it.
Threshing Day is available in hardcover, ebook and audiobook. The deluxe first edition adds sixteen full-colour illustrations by Joe Requeza, plus dragon art on the page edges. It is sold in the US and Canada only, while supplies last. As an Amazon Associate, we earn from qualifying purchases.
Where Threshing Day fits in the Empyrean order
| # | Title | Published | Notes |
|---|---|---|---|
| 1 | Fourth Wing | May 2, 2023 | Start here |
| 2 | Iron Flame | Nov 7, 2023 | |
| 3 | Onyx Storm | Jan 21, 2025 | Ends on the cliffhanger Book 4 will answer |
| 3.5 | Threshing Day | Sep 29, 2026 | Companion collection, 13 stories |
| 4 | Untitled | Not announced | Being written |
| 5 | Untitled | Not announced | The planned finale |
The full series guide, including every other Yarros book and the Prime Video show, is the Empyrean series in order.
What’s in it
The official site’s summary: “Every rider remembers the day they were chosen. Threshing Day gathers thirteen of those stories from across the Empyrean — including Xaden’s — and returns to the moment that set each of them on their path.” Retailer and reader listings give the thirteen narrators as Xaden, Brennan, Mira, Dain, Garrick, Bodhi, Imogen, Rhiannon, Sawyer, Ridoc, Liam, Sloane and Aaric. Violet doesn’t narrate one, since readers saw her Threshing in Fourth Wing.
A practical tip: read it a story or two at a time. Each one replays a moment you already know, from inside someone else’s head, and binged together they blur.
Confirmed vs not confirmed
Confirmed Published September 29, 2026 by Entangled. Rebecca Yarros’s site lists it as “Available now!”
Confirmed It is “a companion collection, not the continuation of Violet and Xaden’s story after Onyx Storm” (threshingday.com).
Confirmed Book 4 is in progress. In September 2026 Yarros described her fall as “wildly busy between releases and writing book four” (Winter is Coming).
Not confirmed Any Book 4 title, cover or release date. Predictions of 2027 or 2028 are guesses.
Not confirmed Final page count. Listings disagree, so we’re not printing one.
What’s next for the Empyrean
- Peculiar Stars (November 17, 2026) is Yarros’s next book. It’s a romance, not an Empyrean novel (rebeccayarros.com).
- Fourth Wing, The Graphic Novel: Volume One arrives April 6, 2027. It adapts book 1 and adds no new story.
- The Prime Video series was ordered in May 2026. No cast or premiere date has been announced.
Waiting on Book 4? Other long romantasy series pair well with this one. Start with our ACOTAR reading order, check the news on ACOTAR books 6 and 7 (book 6 is out October 27, 2026), or browse every reading order guide.
FAQ
Is Threshing Day out yet?
Yes. Threshing Day was published by Entangled on September 29, 2026, and Rebecca Yarros’s site now lists it as available.
Is Threshing Day the fourth Empyrean book?
No. It is the fourth Empyrean book published, but it is a companion collection numbered 3.5. The official site calls it a companion collection, not the continuation of Violet and Xaden’s story after Onyx Storm.
When does Empyrean Book 4 come out?
No title or date has been announced as of October 2026. Yarros said in September 2026 that she is writing book four.
Is Xaden’s story in Threshing Day?
Yes. Xaden is one of the thirteen riders whose Threshing the collection covers, per the official Threshing Day site.
Should I read Threshing Day before or after Onyx Storm?
After. The stories assume you know these characters and where they end up, so read Fourth Wing, Iron Flame and Onyx Storm first.
Was Threshing Day delayed?
No. It came out on its announced date, September 29, 2026.
Sources
- threshingday.com (Entangled): the summary and the companion/not-continuation wording
- rebeccayarros.com/threshing-day: lists the book as “Available now!”
- Goodreads: published September 29, 2026, The Empyrean #3.5, and the narrator list
- Barnes & Noble listing: formats and the deluxe edition
- Winter is Coming, Sep 3, 2026: the Book 4 writing update
As an Amazon Associate, we earn from qualifying purchases.
Finished Threshing Day? Here are books like Fourth Wing to read while Book 4 is being written.