The Griffin Mage Trilogy Omnibus (Lord of the Changing Winds, Land of the Burning Sands, Law of the Broken Earth) (Griffin Mage) by Rachel Neumeier (2011) Hardcover

The Griffin Mage Trilogy [Omnibus] Fire fell from their wings, and the ground beneath them burned... Lord of the Changing Winds: Griffins have come to Feierabiand, searing sky and scorching earth. King Iaor means to drive them from his domain. But not all who encounter the creatures fear them. Kes, a village girl, discovers her affinity with the griffins...and is soon torn between their world and her own. Land of the Burning Sands: In the aftermath of a brutal war, the slave Gereint takes advantage of the chaos to escape a brutal geas...and is caught up in a desperate struggle between the unforgiving griffins and the last mage of Casmantium. Law of the Broken Earth: As mages and griffins rush toward destruction, Mienthe, a young noblewoman with strange abilities, discovers the terrible secret behind the conflict-a secret some would kill to preserve...and she would risk her life to reveal.