Brief
Rebecca Yarros confirms she is writing fourth Empyrean novel
The author announced progress on Instagram and shared a Reel in March 2026, but gave no release date.
By Felo News Desk · Published
Rebecca Yarros has confirmed she is working on the fourth novel of her Empyrean fantasy series, according to a Business Insider report published on September 30, 2026.
What happened
Yarros began plotting the fourth book on February 8, 2026, and posted an Instagram Reel on March 19, 2026 announcing she had started writing it. In the Reel she writes "#4" on a board and says she is back in the Empyrean world after finishing a contemporary novel. She later posted an update on June 13, 2026 about her progress.
What the reports add
The article notes that Yarros released a collection of short stories titled "Threshing Day" on Tuesday, giving readers a preview of the upcoming novel. It also details her publishing timeline: "Fourth Wing" (April 2023), "Iron Flame" (October 2023), and "Onyx Storm" (January 2025). Yarros said in a January 25, 2025 Philadelphia engagement that she would not set a release date because she planned to write a contemporary novel first.
What was said
Yarros captioned the March Reel, "And now that my latest contemporary novel is off to my editor, I'm back writing in the Empyrean world for the foreseeable future. Let's ride." The article also reports that she told Elle she needed rest due to chronic conditions, including Ehlers‑Danlos syndrome and POTS.
How it came about
Yarros' earlier books have been best‑sellers, with "Onyx Storm" described as the fastest‑selling adult novel in two decades. The series is published by Red Tower, an imprint of Entangled. The short‑story collection "Threshing Day" was released to give fans a glimpse of the series' future while the fourth novel remains in development.
Key facts
- Rebecca Yarros announced she is writing the fourth Empyrean novel on Instagram. (insider.com)
- The author posted a Reel on March 19, 2026 showing she started writing the book. (insider.com)
- Yarros released a short‑story collection "Threshing Day" to preview the upcoming novel. (insider.com)
- The Empyrean series includes four books released between 2023 and 2025, with a fifth planned. (insider.com)
Timeline
- 2023-04-01 — "Fourth Wing" published
- 2023-10-01 — "Iron Flame" published
- 2025-01-01 — "Onyx Storm" published
- 2026-02-08 — Yarros began plotting fourth book
- 2026-03-19 — Instagram Reel announcing writing of fourth book
- 2026-06-13 — Progress update posted
Sources
- [1] insider.com — originally reported as “Everything we know about 'Fourth Wing' book 4, from Rebecca Yarros' hints to new clues in 'Threshing Day'”
