In Western meieval legend, a succubus (plural succubi) or succuba (plural succubae) is a demon, who takes the form of a beautiful woman to seduce men, especially monks in dreams to have sexual intercourse. They draw energy from the men to sustain themselves, often until the point of exhaustion or death of the victim. One such story relates to a man in the town of Coblenz, who has been bewitched by a succubus, with whom he is forced to repeatedly fornicate, whilst in the presence of his wife. The story goes on to say that "after an incredible number of such bouts, the poor man at last sinks to the floor utterly exhausted." From mythology and fantasy, Lilith and the Lilin (Jewish) and Lilitu (Sumerian) are in redactive Christian fables (folktales not part of official Christian theology), considered succubi.