3D image of the book Onyx Storm by Rebecca Yarros. The cover features geometric designs, a dragon, lightning, and dark clouds—reminiscent of Heartless Sky from the Zodiac Academy series—with the tagline Brave the dark. A review quote appears at the top.

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Onyx Storm

Discover the instant #1 New York Times bestseller! TV series now in development at MGM Amazon Studios with Michael B. Jordan’s Outlier Society.

Accolades for Fourth Wing:
Amazon Best Books of the Year, #4 • Apple Best Books of the Year 2023 • Barnes & Noble Best Fantasy Book of 2023 • NPR “Books We Love” 2023 • Audible Best Books of 2023 • Hudson Book of the Year • Google Play Best Books of 2023 • Indigo Best Books of 2023 • Waterstones Book of the Year finalist • Goodreads Choice Award Winner • Newsweek Staffers’ Favorite Books of 2023 • Paste Magazine’s Best Books of 2023 • TikTok Book Awards UK and Ireland Book of the Year (International) 2024

After nearly eighteen months at Basgiath War College, Violet Sorrengail knows there’s no more time for lessons. No more time for uncertainty.

Because the battle has truly begun, and with enemies closing in from outside their walls and within their ranks, it’s impossible to know who to trust.

Now Violet must journey beyond the failing Aretian wards to seek allies from unfamiliar lands to stand with Navarre. The trip will test every bit of her wit, luck, and strength, but she will do anything to save what she loves―her dragons, her family, her home, and him.

Even if it means keeping a secret so big, it could destroy everything.

They need an army. They need power. They need magic. And they need the one thing only Violet can find―the truth.

But a storm is coming…and not everyone can survive its wrath.

The Empyrean series is best enjoyed in order.
Reading Order:
Book #1 Fourth Wing
Book #2 Iron Flame
Book #3 Onyx Storm

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