Dragon Fate — E.E. Knight

Scattered across a continent, three dragon siblings are among the last of a dying breed-the final hope for their species' survival.

After fighting a war that cost each of them kingdoms, friends and family, and their honor and glory, they have removed themselves from the troubles of the world. But the order they fought to establish is falling apart. Ancient sorceries have been awakened. Dragons battle dragons. And men are taking up arms against their winged overlords. Now, the three must unite once more to save dragonkind from extinction, before the chaos and fire of war consumes them all...and the world with them.