Abstract: Aware that both human education and diabolic understanding lie at the heart of their two-fold knowledge, the “enchanted thieves” in Lion de Bourges practice magic as well as divination. This makes the nigromance rather ambiguous and shows that the boundaries established between the licit and the illicit have a tendency to blur. Yet does man transgress an order which continues to dominate him by attempting to participate in the realm of the marvellous?