Riders of the Storm — Julie E. Czerneda

The next chapter in the Stratification saga that ?delivers all the right elements.?(Sci Fi Weekly)

On the distant world of Cersi, Om?ray Aryl Sarc and her supporters have been exiled from the rest of their people. Finding refuge in the mountains, they work to rebuild the ruined village of Sona, even as they try to discover what happened to the original Sona Clan. But Sona has a history among all three of Cersi?s races?a history that may soon threaten the future of Aryl?s newly founded clan....