Onyx Storm

Continue the brutal and addictive adventure in the epic third instalment of the global bestselling phenomenon
Hunger Games meets Harry Potter in the epic next installment of the number one bestselling Empyrean series.

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.

UK Delivery:

• Free delivery on all orders of £10 or more.
• £1.49 delivery fee on orders below £10.
• UK orders are shipped via Royal Mail 2nd Class.

International Delivery:

• Flat rate delivery charges vary by country.

Dispatch and Delivery Times:

• All orders are shipped from our warehouse in Northampton, UK as soon as stock is available.
• UK mainland orders typically arrive within 3-7 working days via Royal Mail 2nd Class.
• International estimated delivery times:
• Europe & Channel Islands: 7 to 10 working days
• USA: 7 to 15 working days
• Rest of the World: 9 to 30 working days

View our full delivery infomation here.