Accordingly, the credulous, who, in search of health, knowledge, greatness, or moved by any of the numberless causes for which men seek to look into futurity, were anxious to obtain superhuman assistance, as well as the numbers who had it in view to dupe such willing clients, became both cheated and cheaters, alike anxious to establish the possibility of a harmless process of research into futurity, for laudable, or at least innocent objects, as healing diseases and the like; in short, of the existence of white magic, as it was called, in opposition to that black art exclusively and directly derived from intercourse with Satan. Some endeavoured to predict a man's fortune in marriage or his success in life by the aspect of the stars; others pretended to possess spells, by which they could reduce and compel an elementary spirit to enter within a stone, a looking-glass, or some other local place of abode, and confine her there by the power of an especial charm, conjuring her to abide and answer the questions of her master. Of these we shall afterwards say something; but the species of evasion now under our investigation is that of the fanatics or impostors who pretended to draw information from the equivocal spirits called fairies; and the number of instances before us is so great as induces us to believe that the pretence of communicating with Elfland, and not with the actual demon, was the manner in which the persons accused of witchcraft most frequently endeavoured to excuse themselves, or at least to alleviate the charges brought against them of practising sorcery. But the Scottish law did not acquit those who accomplished even praiseworthy actions, such as remarkable cures by mysterious remedies; and the proprietor of a patent medicine who should in those days have attested his having wrought such miracles as we see sometimes advertised, might perhaps have forfeited his life before he established the reputation of his drop, elixir, or pill. Sometimes the soothsayers, who pretended to act on this information from sublunary spirits, soared to higher matters than the practice of physic, and interfered in the fate of nations. When James I. was murdered at Perth in 1437, a Highland woman prophesied the course and purpose of the conspiracy, and had she been listened to, it might have been disconcerted. Being asked her source of knowledge, she answered Hudhart had told her; which might either be the same with Hudkin, a Dutch spirit somewhat similar to Friar Rush or Robin Goodfellow,[32] or with the red-capped demon so powerful in the case of Lord Soulis, and other wizards, to whom the Scots assigned rather more serious influence.