Asmodeus is a cosmic demon lord and leader of the Netherworld. He is an archvillain in the overarching story of the Greatest Secrets Campaign Setting. Asmodeus is regarded by the Aesir as the origin of all evil things in the universe - plague, disease, famine, war. The Great War has raged for thousands of years and shows no sign of ending soon, though the Aesir were hoping to find a quicker solution by studying the potent relationship between the Elves and magic energy.