There was, he relates, a poor soothsayer, to whom the devil came in visible form, and offered great wealth provided that he would deny Christ and never more do penance. The devil provided him with a crystal, by which he could foretell events, and thus become rich. This he did; but Nemesis awaited him, for the devil deceived him one day, and caused him to denounce certain innocent persons as thieves. In consequence, he was thrown into prison, where he revealed the compact that he had made, and called for a confessor. The two chief forms in which the devil appeared were, according to Luther, those of a snake and a sheep. He further goes into the question of the population of devils in different countries. On the top of the Pilatus at Luzern, he says, is a black pond, which is one of the devil's favourite abodes. In Luther's own country there is also a high mountain, the Poltersberg, with a similar pond. When a stone is thrown into this pond, a great tempest arises, which often devastates the whole neighbourhood. He also alleges Prussia to be full of evil spirits (!!). Devilish changelings, Luther said, were often placed by Satan in the cradles of human children. "Some maids he often plunges into the water, and keeps them with him until they have borne a child." These children are placed in the beds of mortals, and the true children are taken out and hurried away. "But," he adds, "such changelings are said not to live more than to the eighteenth or nineteenth year." As a practical application of this, it may be mentioned that Luther advised the drowning of a certain child of twelve years old, on the ground of its being a devil's changeling. Somnambulism is, with Luther, the result of diabolical agency. "Formerly," says he, "the Papists, being superstitious people, alleged that persons thus afflicted had not been properly baptized, or had been baptized by a drunken priest." The irony of the reference to superstition, considering the "great reformer's" own position, will not be lost upon the reader.