To Break a Dark Cage by Kathryn Ann Kingsley — book slip

Gwen is a prisoner of the man she loves, Mordred, the dark prince of Avalon. Despite siding against him in the battle for Avalon, passion still burns fiercely between them.

Mordred, however, is determined to send Gwen away, never to see Avalon or him again. But the magic of Avalon has other plans, drawing Gwen back and granting her new powers.

With a devastating war looming, Gwen must navigate her feelings for Mordred and the growing power of the demon Grinn to save the island she loves. Can she tame Mordred's rage and pride, and can a demon ever be trusted?

For fans of Sarah J. Maas and Elise Kova, this dark romance offers a seductive blend of intrigue and danger.