Queen of Sorrows (The Immortal Fae King Book 1)

Promised to the immortal fae king since birth, Deirdre was never meant to choose her own destiny. When her escape ends in blood, she's taken to his isolated kingdom where ancient magic reigns, pixies conspire, and her magic is inaccessible. As secrets unravel, Deirdre learns that destroying the Deathless One may cost her far more than her freedom.