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The Threshing Day: Companion Book Guide — 13 Stories, Reading Order
ArcaGame TeamOctober 6, 20267 min read
The Threshing Day is Rebecca Yarros' September 29, 2026 companion volume — thirteen character stories expanding the Empyrean saga after Onyx Storm, launched into a fandom already hunting the threshing day hardcovers, Dragonkind browser clips, and Signet Quiz results. This guide explains what the threshing day book is (and is not), official reading order, how it pairs with dragonkind.com (October 1, 2026) and threshingday.com/quiz.html, and spoiler boundaries for book clubs still catching up.
The Threshing Day Quick Facts
| Item | Detail |
|---|---|
| Title | The Threshing Day (companion) |
| Author | Rebecca Yarros |
| Release | September 29, 2026 |
| Format | 13 character stories |
| Series | Empyrean / Fourth Wing |
| Book 4? | No — companion anthology |
| Min reading gate | Finish Onyx Storm |
| Interactive tie-ins | Dragonkind + Signet Quiz |
Hub: Threshing Day Game. Fourth Wing angle: threshing day fourth wing.
Reading Order for The Threshing Day
| # | Title | Required before The Threshing Day? |
|---|---|---|
| 1 | Fourth Wing | Yes |
| 2 | Iron Flame | Yes |
| 3 | Onyx Storm | Yes |
| 4 | The Threshing Day | This book |
…
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