The Sinner (Return of the Highlanders‪)‬

Alex MacDonald is known for his skill as a warrior, his prowess with women, and his vow to never take a wife. But now his chieftain has asked him to make the ultimate sacrifice: wed Glynis MacNeil, a lass famed throughout the Highlands for her exquisite beauty—and defiant ways.

Familiar with heartbreak, Glynis refuses to fall for another handsome scoundrel. Yet when Alex's past sins force an unlikely union, Glynis gives in to temptation and becomes his wife. Will their newfound passion be strong enough to fight the enemy that threatens their home, their clan, and their very lives?