In this paper I bring a new perspective to the female monster of Oedipus myth, the Sphinx who is accepted as phallic-mother imago in psychoanalytical literature. Through the dreams of my analysand and an acting out that happened in her analysis, I argue, the Sphinx might be the daughter under the spell of mother-goddess/the analyst and castrastes men to protect her mother's bodily passages as well hers because of her incomplete feminine identification that keep her from representing a receptive vagina. The “envious and hostile girl” of psychoanalytical theory with penis envy is the one who couldnt bind her bodily excitations and searching for a solution by asking riddles. So I raise a question too, “What if Sphinx also does not know the answers of her riddles?”