This study investigates reading as a mutational act and inquires how reading - being also a way of writing - provokes mutations. Reading presented as a mutation appears in many of Maria Gabriela Llansol s writings. Also, according to her perception of the Dominican friar Giordano Bruno s writings, mutation is death, understood as a dissolution. The dissertation s field of analysis ranges between love and ruah - Llansol s word for the breath that animates life, mainly present and active in childhood. Two of her more than thirty books, published in life and posthumously, engage in a dialogue with this research: Contos do Mal Errante (1986), and Parasceve, puzzles e ironias (2001). The first one happens around Llansol s return to Portugal, after a 20-year self-exile in Belgium. In that book, a unique love between three figures caused a bend in her writing. As for the second one, it is one of her last works published in life. In it, figures lose their names and, with the ruah, dive into the dispersion of existence. LLansol claims that love is a strength and moves the world in a non-romantic way. It causes loopholes in the order and the establishment; it calls for a complete detachment from rules and creates an open body available for mutation. The images built by her converse with philosophy, and the author perceives children as ruah s carriers. In Parasceve, the children operate their body movement as a movement of thought. In order to communicate with this process, the concepts of sever (Jean-Luc Nancy) and nudity of thought (Maria Gabriela Llansol) became necessary for this study. Consequently, Um Beijo Dado Mais Tarde, from 1990, is another of Llansol s book significant for this investigation. In it, the statue of Sant Ana teaching Mary to read experiments many changes and presents itself as Sant Ana and Myriam, another woman who accompanies Témia, the girl who feared the imposture of the tongue. The three figures dismantle by the author are concepts of Judeo-Christian culture about the formation of the European continent; they are Llansol s companions in a quest and a revisitation, through the text and with the text, of that culture and the stiffening it establishes, subduing the possible in the face of what is so because it is so. In this sense, Llansol s writing is, for this dissertation, a possible confrontation by reading and with reading, expanding language, and the possibilities of existence.