Long ago the Valaes Tairn tamed the griffons of the Blade Desert. Shan Fianin Tairil has led the rejuvenated Kel Gryfaen in reclaiming their heritage. These bands of griffon riders form mobile patrols that soar throughout the skies of Eastern Khorvaire. A party that has aroused the ire of the Host of Valenar must not only navigate the hostile environment but avoid the watchful eyes in the skies. Alternatively, the griffon riders could prove potent allies for a party engaged in worthy conflict and in need of air support against a well-resourced foe.
Source: Politics of Valenar