Nikia, daughter of the Elf-king, is wed to the human prince Garth. To the marriage Nikia brings her strange, magical ways and an ancient family heirloom, the Ruby of Guyaire. When the ruby is stolen, its true worth is discovered--nothing but it will save the Twin Kingdoms from the evil of the Sorcerer. Nikia must recover the jewel, no matter the cost.
Used availability for Nancy Varian Berberick's The Jewels of Elvish
May 1989 : USA Paperback