Glaser was the principal, probably the only person who furnished Sainte-Croix and his mistress with poisons. In their correspondence the two lovers call the poisons which they used 'Glaser's recipe.' These poisons, however, as we shall see, were very simple; in these days they would appear clumsy. Exili, who goes out of our story, remained connected with Queen Christina, and in 1681 made an excellent marriage when he wedded the Countess Ludovica Fantaguzzi, cousin of Duke Francis of Modena. * * * * * As soon as Sainte-Croix left the Bastille he renewed his relations with the Marquise de Brinvilliers. Her passion had only been heightened by the imprisonment of her lover. Wounded in her pride, she felt the birth within herself of an implacable and violent hatred of her father. Her dissipations, her gaming, her wild flings in her lover's company (she paying expenses, after the fashion of that period), had embarrassed her fortune. 'I accuse myself,' she said in her confession, 'of having given a great deal of my wealth to this man, and he ruined me.' The desire of attaining possession of her paternal inheritance, and the yearning, growing day by day more imperious, for wreaking vengeance on her father for the affront put upon her, suggested to her a frightful crime. There might frequently have been seen, drawing up at the market-square of Saint-Germain, a carriage from which alighted a young officer and a fashionable lady. They went on foot to the Rue du Petit-Lion, in which Glaser the chemist lived. Arrived at his house, they sought a retired room. The neighbours, puzzled by these strange goings-on, spoke of false money. Soon this young lady might have been seen, under the edifying appearance of piety and religion, going into the hospitals; she bent over the beds of the patients with words of gentleness and affection; she carried them confections, wine, and biscuits; but the patients whom she approached inevitably succumbed, ere long, in horrible anguish. 'Who would have dreamt,' writes Nicolas de la Reynie, the lieutenant of police, 'that a woman brought up in a respectable family, whose form and constitution were delicate and who in appearance was sweet-natured, would have made an amusement of going to the hospitals to poison the patients, for the purpose of observing the different effects of the poison she gave them?' She poisoned her own servants, too, 'to try experiments.' 'Françoise Roussel says that she has been in the service of Lady Brinvilliers. The latter one day gave her some preserved gooseberries to eat, on the point of a knife, and soon afterwards she felt ill; she gave her also a moist slice of ham, which she ate, and since then she has had severe abdominal pains, feeling as though her heart were being stabbed.' The poor woman was ill for three years.