Pre-Order: Threshing Day (Empyrean Series)

RELEASE DATE: SEPTEMBER 29, 2026

*Please note: Threshing Day is NOT book four in the Fourth Wing story, but it is a book within the Empyrean Series

Rebecca Yarros is the #1 New York Times, USA Today, and Wall Street Journal bestselling author of over twenty novels including Fourth Wing and In the Likely Event. She’s the recipient of the British Book Award for Book of the Year and the Alex Award from the American Library Association. She loves military heroes and has been blissfully married to hers for over twenty years. As the mother of six, when she’s not writing, you can find her at the hockey rink or sneaking in some guitar time. She and her family live in Colorado with their stubborn English bulldogs, two feisty chinchillas, and two cats who rule them all.

Having fostered then adopted their youngest, Rebecca is passionate about helping children in the foster system through her nonprofit, One October, which she co-founded with her husband in 2019. To learn more about their mission to better the lives of kids in foster care, visit oneoctober.org.

To catch up on Rebecca’s latest releases and upcoming novels visit RebeccaYarros.com.