Fenn Lycoper wants nothing to do with his semi-estranged father Boreas, the Djinn of the North Wind. He'd rather stick to his mother's druidic traditions, caring for the soil and roots of the magical tree at the center of his floating island home with his younger sister Gemma at his side. However, when Boreas arrives with news of an impending war on the surface that could extend beyond the material plane, Fenn and Gemma must accompany their father to a meeting on the elemental plane of earth that will decide their fates and the fate of the world they call home.