prologue ghwerig and the bhelliom - from the legends of the troll-gods at the dawn of time , long before the ancestors of styricum slouched , fur-clad and club-wielding , out of the mountains and forests of zemoch onto the plains of central eosia , there dwelt in a deep cavern lying beneath the perpetual snows of northern thalesia a dwarfed and misshapen troll named ghwerig .