What did Rebecca Yarros release for Threshing Day?

On September 29, 2026 Yarros published Threshing Day, a companion book with 13 character stories in the Empyrean universe. Interactive Dragonkind launched at dragonkind.com on October 1, 2026 with official marketing tie-in.

Is Threshing Day Rebecca Yarros Book 4?

No. Threshing Day is a companion anthology, not the fourth mainline novel. Read Fourth Wing, Iron Flame, and Onyx Storm first; spoilers apply after Onyx Storm.

What is Rebecca Yarros' Threshing Day game?

Dragonkind at dragonkind.com — browser dragon survival with email signup, 4-hour death cooldown, ~10% burn chance, and May 9, 2027 signet manifest countdown. The Signet Quiz at threshingday.com/quiz.html is a separate official experience.