'Onyx Storm' is the third part of the 'Empyrean' saga.

Eighteen months after entering the Basgiat Military Academy, Violet Sorrengale no longer has time to study. And no time for doubts. There is a war on two fronts - with enemies external and internal, and it is impossible to predict who can be trusted without risking life.

In search of allies, Violet travels far beyond the borders of Navarre. And this journey will test all her courage, wit, and luck. After all, when you fight for what is most precious in the world - your dragons, your family, your home, and your man - there is nowhere to retreat. Even if the secret you keep can destroy everything.

They need an army. They need strength. They need magic. They want what only Violet can find: the truth.

But a storm is coming... And not everyone can survive its furious wrath.