The Tamuli by David Eddings (Complete Series: Books 1-3)
The 3-book set of mass market paperback novels includes the below titles:
Domes of Fire (ISBN 9780345383273): Danger stalked Queen Ehlana’s realm. When an ambasador from the far-off Tamul Empire begged for help, Sparhawk, Ehlana’s champion and Prince Consort, was the Emperor’s last hope. For surely the knight who had killed the evil God Azash could prevail against the terror in Tamul. But waiting for him was a glittering court seething with corruption, treachery–and the greatest danger Sparhawk would ever face!
The Shining Ones (ISBN 9780345388667): Book Two of The Tamuli. The New York Times Bestseller!
Years ago, the Child-Goddess Aphrael had hidden Bhelliom, the Stone of Power, at the bottom of the sea. Yet now it is needed again to stop a malign force from spreading evil and destruction across the lands. Sparhawk, Queen’s champion, sets out to retrieve the Stone. But others seek the gem for their own diabolical ends. Most fearsome of these are the Shining Ones, whose mere touch melts human flesh from bone. Now Sparhawk finds himself stalked by these creatures out of myth . . . whose touch is all too real.
The Hidden City (ISBN 9780345390400): WAR TO THE DEATH
The Pandion Knight Sparhawk had bested the massed forces of the God Cyrgon upon the field of battle. But victory turned to ashes when the foul God’s minions kidnapped Sparhawk’s wife, the beautiful Queen Ehlana. Sparhawk must surrender Bhelliom, the awesome jewel of power–or Ehlana would die.
But Cyrgon’s lackeys had misjudged their foe. Sparhawk fought on, and none of his companions flinched from the awesome struggle, though each must vanquish forces of evil from Tamuli’s dark past, and from fetid places beyond human ken.
Still, the full magnitude of their peril was yet to be revealed…Cyrgon had dared the unthinkable: He had called forth Kleal, Bhelliom’s opposite, to rend the very world asunder. Thus, as it had ever been decreed, would Bhelliom and Kleal contend for the fate of this world–even as the man Sparhawk must finally face the God Cyrgon, in mortal combat and alone…