When Maolmordha's son is delivered to Lournedal, king of the Ildra'kai, the kingdom clamors for his destruction, but compassion stays his hand. Raising him as his son, Lournedal helps suppress the dark rages within Muireadac. However, when war ravages the land, the dark god's son takes up the sword.
While his might proves instrumental in defeating the enemy, battle lust unleashes the malevolence Muireadac has struggled to contain. Fulfilling his father's designs, Muireadac turns against the man who raised him, intent upon eradicating the Ildra'kai and unleashing damnation. While a rakish prince marshals an army to stem the tide of encroaching darkness, the key to countering Muireadac's might lies in the hands of a rag-tag fellowship embarking on a seemingly hopeless quest.