Through the novel of Sudanese writer T. Salih, Season of Migration to the North, considered by the Academy of Arab Letters as the most important novel in Arabic literature of the 20th century, our study focuses on showing that on the Arab-Nilotic space of Sudan overlaps an imaginary territory of a South encompassing both black Africa and the Arab East on the banks of the Tigris in the time of the Thousand and a Nights. The state of this imaginary and imagined is examined through stereotypes and clichés that superabundate in the novel, thus making it possible to undermine the system of representation of the South seen by the North. At the same time, another South will be drawn by a southern man, the narrator, restoring him to his reality, far from any mythification. Earth seen in its beauty and poetry as well as in its ingratitude and drought. This rewriting project goes hand in hand with the creation of original metaphors. The study also attempts to analyse this shifting mapping where the South and the North attract and tear each other apart. Thus, the South continues to seek its North, its other destiny inscribed in the silt of its land itself “The Nile goes inexorably towards the North”.