The Eucharist was particularly efficacious as a fetich. During the persecution of heresy in the Rhinelands by the inquisitor Conrad of Marburg, in 1233, one obstinate culprit refused to burn in spite of all the efforts of his zealous executioners, until a thoughtful priest brought to the roaring pile a consecrated host. This at once dissolved the spell by a mightier magic, and the luckless heretic was speedily reduced to ashes. A conventicle of these same heretics possessed an image of Satan which gave forth oracular responses, until a priest entering the room produced from his bosom a pyx containing the body of Christ, when Satan at once acknowledged his inferiority by falling down. Not long afterwards St. Peter Martyr overcame, by the same means, the imposture of a Milanese heretic in whose behalf a demon was wont to appear in a heterodox church in the shape of the Virgin, resplendent and holding in her arms the holy Child. The evidence in favor of heresy seemed to be overwhelming, until St. Peter dispelled it by presenting to the demon a host, and saying, "If thou art the true Mother of God, adore this thy Son," whereupon the demon disappeared in a flash of lightning, leaving an intolerable stench behind him. The consecrated wafer was popularly believed to possess a magic efficacy of incomparable power, and stories are numerous of the punishment inflicted on those who sacrilegiously sought thus to use it. A priest who retained it in his mouth for the purpose of using it to overcome the virtue of a woman of whom he was enamoured, was afflicted with the hallucination that he had swelled to the point that he could not pass through a doorway; and on burying the sacred object in his garden it was changed into a small crucifix bearing a man of flesh and freshly bleeding. So when a woman kept the wafer and placed it in her beehive to stop an epidemic among the bees, the pious insects built around it a complete chapel, with walls, windows, roof, and bell-tower, and inside an altar on which they reverently placed it. Another woman, to preserve her cabbages from the ravages of caterpillars, crumbled a holy wafer and sprinkled it over the vegetables, when she was at once afflicted with incurable paralysis. This particular form of fetichism was evidently not regarded with favor, but it was the direct evolution of orthodox teaching. It was the same in respect to the water in which a priest washed his hands after handling the Eucharist, to which supernatural virtues were ascribed, but the use of which was condemned as savoring of sorcery.[38]