Onyx Storm by Rebecca Yarros (The Empyrean #3)

 The dragons chose her.

Now the entire kingdom may fear what she’s becoming.

After everything that happened in Iron Flame,

Violet Sorrengail knows the truth about the war.

And it changes everything.

The enemy is stronger than anyone imagined.

The kingdom is hiding dangerous secrets.

And the people Violet trusts most

may not survive what’s coming next.

As war spreads beyond Basgiath,

Violet journeys into unknown lands searching for allies, answers, and a way to stop the growing darkness.

But every new discovery comes with a price.

Because power always demands sacrifice.

And this time…

Violet may lose far more than her safety.