Vows and Honor by Mercedes Lackey
Hardcover. Conditon: Like-New Dust Jacket: Like-New. 1989. Guild America Books
Born of the Clan of the Hawk, Tarma saw her entire tribe slain by brigands. Vowing blood revenge upon the murderers, she became one of the sword-sworn, the most elite of all warriors. Trained in all forms of death-dealing combat, she took to the road in search of her enemies. Born to a noble house and sold into a hateful "marriage", Kethry fled life's harshness for the sanctuary of the White Winds, a powerful school of sorcery. Unlike other sorcerers, Kethry could use wordly weapons as well as magical skills. And when she became bearer of a uniquely magical sword that drew her to those in need, Kethry was led to a fateful meeting with Tarma. Vows and Honor chronicles the adventures of Tarma and Kethry, swordswoman and sorceress, bound by a blood oath to carry on their mutual fight against evil. Together they will set forth to fulfill a destiny neither could have imagined...
Omnibus contains both The Oathbound and Oathbreakers, the first two books of the Valdemar: Vows and Honor series