Clairvoyance is the ability to perceive objects that are not within one's immediate five senses. Occasionally, common interest items - such as the Blade of the Masters and the moonlight bridle used to capture the nightmare during the Eternal Night saga - will be sensitive to clairvoyant pryings. When this happens, any able-minded individual may, via the CLAIRVOYANCE command, immediately discover the positions of these objects from afar.