Herumor the Dark Lord

Often speculated in the sequel to Lord of the Rings, The New Shadow--Herumor was the leader of a secret cult that worshiped the deeds and actions of evil. It is unknown if Herumor was actually a man, most likely he was, or perhaps he was in man form and possessed a demonic spirit. Herumor's translation is actually Dark Lord so the fact that he would be the main enemy of the free peoples is imminent.