In the tales collected here, published in 1750-55, Madame Fagnan demonstrates that the fantastic can be a useful instrument in the advancement of Enlightenment, because rather than in spite of its absurdity. Her sardonic narrative points out the absurdity of the conte de fées, and emphasizes that the age of the fays, if ever there was one, reached its twilight long before history became possible. Madame Fagnan's work as a whole asserts that fays are not, and never could be, up to the task of providing miracles, because the inevitably corrupting effects of their power would always lead them to indifference toward human suffering, if not to the malevolence of causing it. That, rather than any scientific skepticism relating to the workability of magic, is the Enlightenment that hammered the nails into the coffin of the genre, and although the final nail had yet to be added, that coffin was already sealed by 1755.