The "Decameron", the short story collection by the Italian author Boccaccio, with its frame tale of nobles fleeing the plague and telling each other stories, had an enormous impact on French writers. The sister of Francis I, Marguerite of Navarre, who was the center of a progressive literary circle, undertook her own version (the "Heptaméron") which, although incomplete, is one of the masterpieces of the century. Other important writers of short stories include Noël du Fail and Bonaventure des Périers. As the century progressed, the use of oral discourse, multiple voices and table talk led to a dialogued form which often seems revolutionary and chaotic to modern ears.