Secret of the Dragon - Weis Margaret, Hickman Tracy

New gods are challenging the old high god, Torval, for rulership of the world. The only way to stop these brash interlopers lies with the five Bones of the Vektia Dragons - the five primal dragons hidden away by the Dragon Goddess Vindrash during the creation of the world. Without these dragons, one of the new gods, Aelon, cannot seize power. The only hope of the Vindrasi lies in finding the dragon bones before the followers of Aelon can use them to destroy the old gods. But the Vindrasi gods have a traitor in their midst...