Book 1

The Oathbound

by Mercedes Lackey

Published 5 July 1988
The first book in the Vows and Honor trilogy unites swordmaster and sorceress in a quest for revenge in this thrilling epic fantasy

She was Tarma. Born to the Clan of the Hawk of the nomadic Shin’a’in people, she saw her entire clan slain by brigands. Vowing blood revenge upon the murderers, she became one of the sword-sworn, the most elite of all warriors. And trained in all the forms of death-dealing combat, she took to the road in search of her enemies.
 
She was Kethry. Born to a noble house, sold into a hateful “marriage”, she fled life’s harshness for the sanctuary of the White Winds, a powerful school of sorcery. Becoming an adept, she pledged to use her talents for the greatest good. Yet unlike other sorcerers, Kethry could use worldly weapons as well as magical skills. And when she became the bearer of a uniquely magical sword that drew her to those in need, Kethry was led to a fateful meeting with Tarma.
 
United by sword-spell and the will of the Goddess, Tarma and Kethry swore a blood oath to carry on their mutual fight against evil. And together, swordsmaster and sorceress set forth to fulfill their destiny….

Book 2

Oathbreakers

by Mercedes Lackey

Published 3 January 1989
Evil had cast its shadow over the kingdom of Rethwellan. When Idra, leader of the Sunhawks mercenaries, failed to return from a journey to her home, Tarma and Kethry, warrior and mage, set out in search of their vanished leader.

Book 3

Oathblood

by Mercedes Lackey

Published 3 January 1989
This exciting new anthology includes a new novella featuring Mercedes Lackey's most popular heroines, Tarma (one of the sword-sworn and most feared of all warriors) and Kethry (who wields magic and weapons for the greater good), whose fates are suddenly bound together in blood by the powers that control their destinies. Also included in the unique volume is the complete collection of Lackey's short stories about these two brave sisters as they answer the call of their destinies with sword and sorcery!

Exile's Honor

by Mercedes Lackey

Published 1 October 2002
Alberich had spent most of his youth in the Karsite military schools training to be an officer. As the son of an impoverished mother, he had no other career choice open to him. And Alberich had risen in the ranks with almost unnatural speed. He developed expertise with many weapons and excelled in academic subjects with an ease that was the envy of his classmates. But in fact, the reclusive Alberich studied long and hard, pushing himself ruthlessly.
 
In battle, Alberich had always had a sort of “sixth sense” about things which were about to happen—when and from where the enemy would attack. Instinctively, he his this ability, for the Sunpriests kept careful watch for anyone exhibiting “demon powers” which were the hallmark of Karse’s greatest enemy—the witch-nation of Valdemar. Those they caught were “cleansed” in the fires of Vkandis Sunlord.
 
Both Alberich’s skill and secret served him well in the army of Karse, and when Alberich became one of Karse’s youngest captains, he received a special gift—a powerful white stallion “liberated” from the enemy. But this honor was merely a distraction, for the Sunpriests had laid a trap which even Alberich’s strange foresight could not predict…
 
Saved from burning as a witch when this odd white stallion braved flames and carried him over the border into Valdemar, he was healed by the same enemies he had been taught to hate his entire life. Though he knew he could never again return to his home, Alberich also knew he could never truly become a Valdemaran. How could Alberich remain true to his own people and still retain his honor while helping to train the direst enemy of Karse?

Tarma and Kethry

by Mercedes Lackey

Published 21 August 2018
This omnibus of the acclaimed Vows and Honor trilogy, set in the New York Times bestselling world of Valdemar, follows Tarma and Kethry, swordswoman and sorceress, as they seek justice for past wrongs.

The Oathbound: Introduces Tarma--swordswoman trained by elite warriors in all forms of deadly combat--and Kethry, former noblewoman whose magical skills were shaped by a powerful school of sorcery. United by the Goddess and armed with a magical sword drawing them to those in need, Tarma and Kethry swore a blood oath to fight against evil.

Oathbreakers: When Idra, leader of the Sunhawk mercenaries, failed to return from a journey to her home kingdom of Rethwellan, Tarma and Kethry set out in search of her. Instead they find a land shadowed by a dark enchantment, the claim to the throne in question, and the people of Rethwellan in terrible jeopardy.

Oathblood: The sisters of sword and spell have pledged to train others to fight for their cause, starting a school for fledgling warriors and mages. But training turns out to be far more perilous than expected--and when two of their students are kidnapped, Tarma and Kethry must draw upon their combined skills to answer the call of destiny in ways they never imagined.