Embroiled within a plot to wage war on the rest of the world, Ero Unsughn and his adventuring companions must stop the tyrant Prince Karthas from achieving those insane ends. A mysterious swordsman accompanies the group in their journey to save their lands from the savage depredations of Karthas's vampiric army. Will the adventurers be able to end the mad prince? What must they do in order to save the lands from this cruel undead despot?