Summoned to the town hall when his father gravely ill, Carly finds himself at the center of the Change, a much-storied phenomenon, that only he has the power to bring to the surface to help save his father's life and the fate of mankind. But first he'll have to navigate deep inside the bowels of the earth, where a once-powerful god has languished for the centuries, impatiently waiting to unleash his wrath on the world. Carly's treacherous journey will force him to battle ravenous wolf packs, a two-headed beast, and devious trolls and gargoyles, hell-bent on protecting the Dark Lord from threats. Can he survive long enough to reach the Mirage of Castles and finally banish the evil that's permeates the Earth?