# Fourth Wing Author Rebecca Yarros Announces Threshing Day, New Book in Empyrean Series

> Rebecca Yarros, author of the widely popular fantasy romance book series Fourth Wing (The Empyrean series), announced the title of a new book called Threshing Day, which will be released on September 29, 2026.

- **Source:** [Ign](https://www.ign.com/articles/fourth-wing-rebecca-yarros-announces-threshing-day-new-book-in-empyrean-series?utm_source=gearopen.com&utm_medium=referral&utm_campaign=feed&utm_content=6a57f95844c6074695e06d2d)
- **Published:** 2026-07-15
- **Category:** Gaming
- **Tags:** #amazon #book #yarros #empyrean #series #author #fourth #rebecca
- **Canonical:** http://localhost:4321/a/6a57f95844c6074695e06d2d

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_GearOpen's distilled summary. The full original article is published at Ign (source link above); GearOpen does not republish the source's full text._