Secret of the Dragon (Dragonships of the Vindras #2)

The gods that once held control over human existence are in trouble.  New gods are challenging the power of the high god, Torval, for rule of the world.  New religions are giving power to these brash interloping young gods, and the only way to stop them lies with the five bones of the Vektia Dragons—for these bones hold the primordial power of creation and destruction.  The hope of the Vindrasi lies in finding the dragon bones before the followers of the new god Aelon can use them to redefine existence.  But the Vindrasi gods have a traitor in their midst…
 
In the land of mortals, Raegar, a Vindraisi turned Aelon warrior-priest, searches for the spirit bones.  Torval has a champion as well—Skylan Ivorson, sea-raider and high chief of the Vindrasi clans, cousin and sworn enemy to Raegar.  But Skylan and his people are captives in Sinaria, where they must fight for survival. The fates of men and gods and are rushing headlong to destruction. Skylan can stop the calamity, but only if he discovers the secret of the dragon.