The Princess and The Odium by Sam Ledel

The kingdom of Venostes is in upheaval.

Her sister's cure in hand, Jastyn races home to find her family in chains. The Dark Fae has grown more powerful, and malevolent forces reign. When Jastyn is forced to work alongside the Diarmaids, things become even more complicated.

Aurelia is dragged back to Venostes to confront not only her brother's killer, but her own parents' dark past. As evil takes hold of her kingdom, Aurelia fights to destroy the Dark Fae and his masters once and for all.

Together, Jastyn and Aurelia face unimaginable dangers. Can they take back Venostes? Even more, can two people as different as they--a princess and an Odium-be together? Are they destined for one another, as Aurelia hopes? Or, as Jastyn fears, are they simply impossible?