Bone and Blade by Delta James

Brynn Thorson the Jomsviking has had a hard time of it—magically kidnapped, nearly murdered, and slowly making a long recovery. Now he seeks the woman who kidnapped him: Kasia, a Witch of the Ironwood. The two of them must learn to bury their past grievances and reckon with their passionate attraction to each other, in order to deal with a deadly foe—the notorious Burners. Once again, the gods and goddesses are intervening in the affairs of mortals, and Brynn and Kasia must rise above being mere pawns in a lethal game, if they don’t kill each other first!