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Article:Hell Their belief system was later revised to the philosophy of the Holy Light. The realm from which demons are summoned was originally referred to as Hell, Hades, and the underworld, as opposed to the Twisting Nether. This is not a true retcon as later sources confirm the existence of hell, although it is synonymous with the Twisting Nether, which goes by many titles. Hell as one of its names has been referenced in later sources.
In Warcraft I, and to a lesser extent Warcraft II & Warcraft III, and in the novels, Day of the Dragon specifically, the terms "hell", "hells", "Hades", "lower planes", "the underworld", "damnation",, "pit of darkness" and "Dark Below" are used in a very traditional sense.