Crowns of Nyaxia - The Nightborn Duet Tome 2
The Ashes & the Star-Cursed King

In the wake of the bloody tournament known as the Kejari, Oraya is now a prisoner in her own kingdom. She's left with one certainty : she cannot trust anyone, least of all Raihn, the vampire who betrayed her. The House of Night, too, is surrounded by enemies, and Raihn's own nobles are none too eager to accept a Turned king. When Raihn offers Oraya a secret alliance, taking the deal is her only hope of reclaiming her crown - and seeking her revenge.
But to do so, she'll need to harness an ancient power, intertwined with her father's greatest secrets. With enemies closing in on all sides, Oraya finds herself forced to choose between the bloody reality of seizing power - and the devastating love that could be her downfall.