Topic of entrance and exit sequences in Charles Sorel’s Description de l’isle de Portraiture (1659) and Mlle de Montpensier’s La Relation de l’Ile imaginaire (1659) The geographical production of the utopian island is paralleled by a number of textual mechanisms described by Jean-Michel Racault as topic of entrance and exit sequences. The close generic resemblance between French seventeenth century utopian and allegorical narratives of imagined islands, allows to ask about their topic similarity. The review of some of those sequences contained in Mademoiselle’s de Montpensier La Relation de l’Ile imaginaire and Charles Sorel La Description de l’isle de Portraiture, both published in 1659, shows however that they are an optional author’s choice and not a required narrative component.