In the present work, Juiio Cortázar's La vuelta al día en ochenta mundos the "casilla del camaleón" is considered as the privileged place, where theory and practice combine. The "casilla" is the place, or point of view, where the author places himself in the creative game: he goes trom one place to another, he goes forward or he goes back just to get to the "center" of the labyrinth. The "camaleón", on its turn, becomes the emblematic or symbolic figure in the book because of its possibilities of transformation and change which are the characteristics linked with human existence and linked with the poetic creation of the author