In Paris a woman named Des Hayes Voisin, a widow who had taken up the business of a midwife, towards the end of the seventeenth century made herself notorious by the telling of fortunes. Such at least was the manifest occupation of the worthy lady, and as she did not flaunt herself unduly, her existence was rather a retired one. Few who did not seek her services knew of her existence, fewer still of her residence. The life of a professor of such mysteries as the doings of Fate—so-called—is prolonged and sweetened by seclusion. But there is always an “underground” way of obtaining information for such as really desire it; and Madame Voisin, for all her evasive retirement, was always to be found when wanted—which means when she herself wanted to be found. She was certainly a marvellous prophet, within a certain range of that occult art. Like all clever people she fixed limitations for herself; which was wise of her, for to prophesy on behalf of every one who may yearn for a raising of the curtain, be it of never so small a corner, on all possible subjects, is to usurp the general functions of the Almighty. Wisely therefore, Madame Voisin became a specialist.165 Her subject was husbands; her chief theme their longevity. Naturally such women as were unsatisfied with the personality, circumstances, or fortunes of their partners, joined the mass of her clientèle, a mass which taking it “bye and large” maintained a strange exactness of dimensions. This did not much trouble the public, or even the body of her clients, for no one except Madame herself knew their numbers. It was certainly a strange thing how accurately Madame guessed, for she had seemingly no data to go on—the longevity of the husbands were never taken into the confidence of the prophet. She took care to keep almost to herself the rare good fortune, in a sense, which attended her divination; for ever since the misfortune which had attended the late Marquise de Brinvilliers became public, the powers of the law had taken a quite unnecessary interest in the proceedings of all of her cult. Longevity is quite a one-sided arrangement of nature; we can only be sure of its accuracy when it is too late to help in its accomplishment. In such a game there is only one throw of the dice, so that it behoves anyone who would wager successfully to be very sure that the chances are in his—or her—favour.

Madame Voisin’s clients were generally in a hurry, and so were willing to take any little trouble or responsibility necessary to ensure success. They had two qualities which endear customers to those of La Voisin’s trade; they were grateful and they166 were silent. That they were of cheery and hopeful spirit was shown by the fact that as a rule they married again soon after the dark cloud of bereavement had fallen on them. When the funeral baked meats have coldly furnished forth the marriage tables, it is better to remain as inconspicuous as possible; friends and onlookers will take notice, and, when they notice, they will talk. Moreover the new partner is often suspicious and apt to be a little jealous of his predecessor in title. Thus, Madame Voisin being clever and discreet, and her clients being—or at any rate appearing to be—happy in their new relations and silent to the world at large, all went prosperously with the kindly-hearted prophet. No trouble rose as to testamentary dispositions. Men who are the subjects of prophecy have usually excellently-drawn wills. This is especially the case with husbands who are no longer young. Young husbands are as a rule not made the subjects of prophecy.
Madame Voisin’s great accuracy of prediction did not excite at the time so much public admiration as it might have done if she or her clients had taken the public more into their confidence; but it was noted afterwards that in most cases the male individual who retired early from the scene was the senior partner in that congeries of three which has come to be known as “the eternal triangle.” In later conversations, following in the wake of the167 completed prophecy, confidences were exchanged as to the studies in certain matters of science in which Madame Voisin seemed to have attained a rare proficiency.
The late Mr. Charles Peace, an adventurous if acquisitive spirit, who gave up his life in the same manner as the deceased Mr. Haman, worked alone during the long period of his professional existence, and with misleading safety. The illustrious French lady-prophet unwisely did not value this form of security, and so multiplied opportunities of failure. She followed an entirely opposite policy, one which though it doubtless stood by her on many occasions had a fatal weakness. In some ways it may facilitate matters if one is one’s own Providence; such a course avoids temporarily errors of miscalculation or deduction of probable results. And just as the roulette table has certain chances in favour of Zero, there is for the practical prophet a large hazard in that the dead are unable to speak or to renew effort on a more favourable basis. La Voisin, probably through some unfavourable or threatening experiences, saw the wisdom of associating the forces of prediction and accomplishment, and with the readiness of an active personality effected the junction. For this she was already fairly well equipped with experiences. Both as a wife and a lover of warm and voluptuous nature she understood something of the passions of humanity, on both the female and the male side; and being a woman she168 knew perhaps better of the two the potency of feminine longing. This did not act so strongly in the lesser and more directly commercial, if less uncertain, phases of her art, such as finding lost property, divining the result of hazards, effecting immunity from danger, or the preserving indefinitely the more pleasing qualities of youth. But in sterner matters, when the issue was of life or death, the masculine tendency towards recklessness kicked the beam. As a nurse in active touch with both medical and surgical wants, aims, and achievements, she was at ease in the larger risks of daily life. And after all, her own ambitions, aided by the compelling of her own natural demands for physical luxury, were quite independent, only seeking through exiguous means a way of achievement. In secret she studied the mystery of a toxicologist; and, probably by cautious experiment, satisfied herself of her proficiency in that little-known science. That she had other aims, more or less dependent on this or the feelings which its knowledge superinduced, can be satisfactorily guessed from some of her attendant labours which declared themselves later.
After a time La Voisin’s vogue as a sorceress brought her into certain high society where freedom of action was unhampered by moral restraints. The very rich, the leaders of society and fashion of the time, the unscrupulous whose ambitious efforts had been crowned with success of a kind,169 leaders of Court life, those in high military command, mistresses of royalty and high aristocracy—all became companions and clients in one or more of her mysterious arts. Amongst them were the Duchesse de Bouillon, the Comtesse de Soissons, Madame de Montespan, Olympe de Mancini, Marshal de Luxembourg, the Duc de Vend?me, Prince de Clermont-Lodeve. It was not altogether fashionable not to be in touch with Madame Voisin. Undeterred by the lessons of history, La Voisin went on her way, forced as is usual in such cases by the circumstances which grow around the criminal and prove infinitely the stronger. She was at the height of her success when the public suspicion, followed by action, revealed the terrible crimes of the Marquise de Brinv............