Dragon Fire by Donita K. Paul

Three years have passed since Kale and Bardon freed paladin's knights. Now, fiery dragons scorch their beautiful countryside as an evil husband and wife wizard duo fight for supremacy. The people of Amara just want to be left alone, hoping the conflict will disappear. But paladin is dying, and Bardon and Kale who are now married must accept fateful, separate assignments if their land is to survive. Can their efforts turn the tide against their enemies? I enjoy reading books that use the fantasy genre.