an image of the enemy). Although these practices were condemned by Church authorities as superstitious and sacrilegious abuses, they still occurred secretively. In the 12th and 13th centuries there was a great surplus of clerics and monks who might be inclined to perform these Masses, as younger sons were often sent off to religious universities, and after their studies, needed to find a livelihood. Also within the Church, the ritual of the Mass was sometimes reworked to create light-hearted parodies of it for certain festivities. Some of these became quasi-tolerated practices at times—though never accepted by official Church authorities—such as a festive parody of the Mass called "The Feast of Asses", in which Balaam's ass (from the Old Testament) would begin talking and saying parts of the Mass. A similar parody was the Feast of Fools. Though often condemned, practitioners of such activities, called "Goliards", continued despite the Church's disapproval. Another result of the surplus of (sometimes disillusioned) clerical students was the appearance of the Latin writings of the Goliards and wandering clerics (clerici vagantes). There began to appear more cynical and heretical parodies of the Mass, also written in ecclesiastical Latin, known as "drinkers' Masses" and "gamblers' Masses," which lamented the situation of drunk, gambling monks, and instead of calling to "Deus" (God), called to "Bacchus" (the Roman god of wine) and "Decius" (the god of dice, which were used in gambling). Some of the earliest of these Latin parody works are found in the medieval Latin collection of poetry, Carmina Burana, written around 1230. At the time these wandering clerics were spreading their Latin writings and parodies of the Mass, the Cathars, who also spread their teachings through wandering clerics, were also active. Due to the proximity in time and location of the Goliards, the Cathars, and the witches, all of whom were seen as threatening the authority of the Catholic Church and its head, the Papacy in Rome, some historians have postulated that these wandering clerics may have at times offered their services for performing heretical, or "black" Masses on various occasions. A further source of late Medieval and Early Modern involvement with parodies and alterations of the Mass, were the writings of the European witch-hunt, which saw witches as being agents of the Devil, who were described as inverting the Christian Mass and employing the stolen Host for diabolical ends. Witch-hunter's manuals such as the Malleus