The Tempests of Xanthia by Evelyn Briar - The Realm of Xanthia Book 2 (signed paperback) + art print.

Blurb:

Bonds deepen. Worlds grow. Tempests collide. The second instalment in the duology that follows Alianna and Rionan. Alianna has survived the awakening of a great power within her. This victory becomes a curse, as this jagged, ancient essence begins to anchor itself within her soul. She is no longer a player in the fate of Xanthia. She is the storm that could tear it apart. Rionan, the most powerful Lord in Xanthia, has faced monsters, wars, and enemies that seek to destroy him. He has never known a fear he couldn’t conquer. Until now. His duty is to protect his lands. But wanting Alianna is the one thing he can’t command himself away from. As Rionan’s devotion deepens, lines between oath and desire begin to blur. Rionan and Alianna must find a way to do what has never been done. Together, they traverse Xanthia itself, facing those who want to see them dead, and the creatures that bend to the shadow of Rannirr’s will. They have one break the power’s hold on Alianna, before it breaks her. But will the cost be the very bond that holds them together? When tempests collide, only the strongest foundations remain. Perfect for readers who He fell first (and now he falls harder)Touch her and die energySoul bondsFound familyHigh stakes and protective rage“I can’t lose you” momentsMature main characters (late 20s to mid 30s)