La Voisin was assisted in these monstrous rites by a priest 'squint-eyed and old,' with bloated face, and prominent blue veins forming a network on his cheeks--the terrible Abbé Guibourg. Formerly chaplain to the Count de Montgommery, he was at this time sacristan of St. Marcel, at St. Denis. He used to say mass, according to the proper rites, wearing the alb, stole, and maniple. 'The women on whose bodies mass was said were laid stark naked, without even their chemise, upon a table which served as altar; their arms were stretched out, and they held a taper in each hand.' Sometimes they did not actually undress themselves, 'but only tucked up their garments as high as the throat.' The chalice was placed on the bare belly. At the moment of the _offertoire_, a child had its throat cut. Guibourg usually stuck a long needle into its neck. The blood of the expiring victim was poured into the chalice, and mixed with the blood of bats and other materials obtained by filthy means. Flour was added to solidify the mess, which was thus made to resemble the Host, to be consecrated at the moment when, in the sacrifice of the mass, transubstantiation takes place. The scene is reconstructed by La Reynie according to the testimony of the accused. Black masses were not the only sorceries whose rites required the sacrifice of children. La Voisin and her fellow-witches perpetrated a terrible slaughter of them. Children deserted by their unmarried mothers, others bought from poor women, did not suffice: several sorceresses were convicted of having killed their own children for these atrocious proceedings. Here, for instance, is a horrible detail: the daughter of La Voisin, on the very eve of her trouble, not trusting her mother, fled the house, and only returned after placing her infant in safety. The witches ran off with children in the streets. La Reynie wrote to Louvois: 'Remember the great disturbance in Paris in 1676, when there were seditious gatherings and mobs and runnings to and fro in several parts of the city, through the rumour that people carried off children to cut their throats, though no one then understood what the cause of the rumour could be. The mob, however, proceeded to various excesses against the women suspected of being child-stealers. The king ordered an inquiry. Proceedings were taken (against those who rose against the witches), and a woman who was guilty of violence was condemned to death, but obtained a special pardon.'