Onyx Storm: Continue the brutal and addictive adventure in the epic third instalment of the global bestselling phenomenon

· Hachette UK
305 reviews
Ebook
672
Pages
Eligible

About this ebook

The jaw-dropping third book in the record-breaking, multi-million-copy bestselling Empyrean series.

A major TV adaptation has now been greenlit at MGM Amazon Studios with Michael B. Jordan's Outlier Society - don't be the last to discover the magic of this blockbuster world.

'Yarros is the true inheritor of Harry Potter and inspires Hunger Games levels of devotion'
GUARDIAN

'Pure escapism . . . We'd suggest savouring every moment'
INDEPENDENT

'Full of action, suspense and intrigue. This is the ride you have been waiting for, hold on tight'
DAILY MIRROR

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A STORM IS COMING . . .
AND NOT EVERYONE CAN SURVIVE ITS WRATH.

After nearly eighteen months at Basgiath War College, Violet Sorrengail knows there's no more time for lessons and no more time for uncertainty - the battle has truly begun. With enemies closing in from all corners, they need an army. They need power. And they need to unravel the dark truth about what's really happening on the continent before it's too late.

Violet must embark on her most dangerous mission yet and travel beyond the failing wards to seek allies who will stand with Navarre. The trip will push her to the very edge of her power, and the odds of dying are far greater than the hope of success. But Violet will risk everything to save her dragons, her family, and him . . . even if it means keeping a secret so big it could destroy them all.

ARE YOU READY TO BRAVE THE DARK?
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Millions of readers have already begun their Empyrean adventure. Now it's your turn to brave the storm . . . pray to Malek that you survive.

'The new publishing sensation' Daily Mail

'This book contains an addictive, drug-like essence that will make you relinquish all responsibility' Glamour

'I couldn't put it down!' Millie Bobby Brown

'Yarros had me hooked from the first chapter' Mail on Sunday

'Incredible storytelling on every page' The Sun

'We weren't expecting to become obsessed . . . but we very much are, and we're not alone' Sunday Times Style

'A deliciously gripping dish, which I downed in one sitting' Stylist

'One of the publishing events of the year' BBC News

'Prepare to get obsessed' Cosmopolitan

OTHER BOOKS IN THE EMPYREAN SERIES:


-FOURTH WING

-IRON FLAME
-ONYX STORM

COMING SOON IN THE EMPYREAN WORLD:

THRESHING DAY:
Return to the world of Empyrean with thirteen stories starring your favourite Fourth Wing characters. Coming September 29th 2026.

FOURTH WING, THE GRAPHIC NOVEL: VOLUME ONE:
The first volume of a stunning graphic novel adapted by Rebecca Yarros. Coming April 6th 2027.

FOURTH WING, TAROT DECK:
78 tarot cards with familiar characters, scenes, and symbols from the Empyrean series. Coming April 6th 2027.

The jaw-dropping third book in the record-breaking, multi-million-copy bestselling Empyrean series. A major TV adaptation has now been greenlit at MGM Amazon Studios with Michael B. Jordan's Outlier Society - don't be the last to discover the magic of this blockbuster world. 'Yarros is the true ...

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Ratings and reviews

305 reviews
Leila Music
January 29, 2025
a very slow start. there was so much to do yet the time was wasted at the start. the first 100 pages could be explained in much shorter time leaving more room for extra xadens pov. the end was disappointing too and felt it's more of a set up for the next book. the irids could have had a longer story too as it was a whole point of 2/3 of the book. it felt rushed. nearly 700 pages and not much has happened really. island hopping was predictive and so was time on it. Iron flame and fourth wing were much better.
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Teo fagertun
August 20, 2025
As the second book, it had the potential to be great. but it failed miserably. Rebecca got attached to the characters too much, the plot Armor is unbearable. and what the hell was the power up that violet got? I was very disappointed, ending kinda carried but everything else kinda sucked. Last romance I'm reading.
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Audrey Potts
March 11, 2025
I've read the three books in the series and loved them all. At the start I never thought I would enjoy them as much as I did but Violet just gets under your skin and you want her to have a happy ending 😭. The reason I only gave this one 4 stars is because I found the ending a bit confusing and think it ended very abruptly, this wouldn't stop me from recommending the books to anyone who likes this genre.
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About the author

Rebecca Yarros is the no. 1 Sunday Times and New York Times bestselling author of over twenty novels including Fourth Wing and In the Likely Event, with multiple starred Publishers Weekly reviews and a Kirkus Best Book of the Year.

She loves military heroes and has been blissfully married to hers for over twenty years. She's the mother of six children, and is currently surviving the teenage years with two of her four hockey-playing sons. When she's not writing, you can find her at the hockey rink or sneaking in some guitar time while guzzling coffee. She and her family live in Colorado with their stubborn English bulldogs, two feisty chinchillas, and a Maine Coon cat named Artemis, who rules them all.

Having fostered then adopted their youngest daughter, Rebecca is passionate about helping children in the foster system through her nonprofit, One October, which she co-founded with her husband in 2019.

Rebecca Yarros is the no. 1 Sunday Times and New York Times bestselling author of over twenty novels including Fourth Wing and In the Likely Event, with multiple starred Publishers Weekly reviews and a Kirkus Best Book of the Year. She loves military heroes and has been blissfully married to her...

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