Truth Within Nightmares is the third scenario in Conquest of the Underworld. Tarnum learns that he must face the necromancer Sandro to reach the next level of the Underworld. But the necromancer dwells in the deepest, most vile parts of the caverns, and will not be easy to reach. Queen Allison has moved into the castle, managing income and resources while Tarnum takes care of the fighting. Both Tarnum and her troops are impressed by the way she remains bold and proud in the macabre surroundings.