Sovereign Stone: Well of Darkness is a classic tale of the rivalry of two half-brothers, the sons of King Tamaros of Vinnengael: the virtuous elder Helmos and the frustrated and ambitious young Dagnarus. Along the way, Dagnarus wins the friendship and loyalty of his whipping boy, Gareth, who in due course trains as a mage and adept in forbidden Void magic, dangerous to the user but deadly to the user's enemies. Shortly after King Tamaros believes that he has made peace among the four races (human, dwarves, elves and orken), Dagnarus and Gareth together begin to undo all the king's work, unleashing a war of all against all made even worse by the lethal Void magic and the rivalries of potentates, particularly human and elven.