Libertarian writers, Georges Darien and Octave Mirbeau are also distinctive because of the importance of the volume of dialogue in their novels. This paper purposes to show that dialogue plays a fundamental role in the critical and polemical nature of their works. To do so, it shows how both authors reappropriate a variegated novelistic heritage to polemical ends. The study of these novelistic structures leads to the analysis of the manner in which the authors endeavour to exacerbate the critical potential of dialogue by re-employing canonical forms of verbal exchange between characters while using exageration to such a degree as to verge on caricature. These analyses lead to questioning the tension at the heart of their projects, since these authors make use of these non dialogic dialogues at the same time as they refuse to write authoritarian fiction.