Rebecca Yarros, the bestselling author of the Empyrean series—known to fans as “Fourth Wing”—has officially unveiled the title of her next novel, Threshing Day, and confirmed a September 29, 2026 release date. The announcement came via an Instagram post that tied the title reveal to the series’ pivotal “Conscription Day,” when cadets must survive a life‑or‑death trial to become dragon riders.

What the Book Offers

Threshing Day will compile thirteen short stories, each spotlighting a fan‑favorite character as they experience their own “Threshing Day”—the moment they claim their dragons. Most notably, the collection finally fulfills a long‑standing reader request: a dedicated point‑of‑view chapter for Xaden, one of the series’ central protagonists. The deluxe edition will be embellished with sixteen original, full‑color pieces by artist Joe Requeza, adding a visual treat for collectors.

Pre‑order Momentum and Market Reaction

Back in April, Yarros opened pre‑orders for an untitled Empyrean installment, sparking immediate speculation across fan forums. Even without a name, the pre‑order surge vaulted the title to #2 on Amazon’s bestseller list. With the official title now public, the pre‑order link has been refreshed, allowing eager readers to secure their copies ahead of the fall launch.

Future Projects and TV Adaptation

While the author confirms she is still drafting Book 4 of the Empyrean saga, the franchise’s momentum has spilled into television. Amazon MGM Studios, in partnership with Michael B. Jordan’s Outlier Society, is developing a “Fourth Wing” series. It remains unclear whether any of the new Threshing Day narratives will be woven into the show, but the television adaptation underscores the series’ crossover appeal.

Availability

Readers can pre‑order Threshing Day now, with the hardcover expected on shelves worldwide on September 29, 2026. The release promises to deepen the Empyrean universe, satisfying a growing fan base eager for fresh dragon‑riding adventures.