Across the Dark Water (Riders of the Realm, Bk. 1)

Deep in the jungle, the Sandwen clan and their winged warrior horses live among deadly spit dragons, hordes of warring giants, and other perils. But when a small herd of wild steeds flies over their village, twelve-year-old stable groom Rahkki and his clanmates are stunned.

Echofrost, Hazelwind, and all of Storm Herd have journeyed across a treacherous ocean to settle in this new land, only to find that the Landwalkers are not as friendly as they thought. Then the unthinkable happens. Echofrost and a young mare named Shysong are captured, and suddenly everything changes. And with the giants gearing up for a ferocious attack, Rahkki, the Sandwens, and all the pegasi will have to learn to trust each other before they run out of time.