Le gri-gri du Niokolo-Koba, written and drawn by Fournier, is the twenty-fifth album of the Spirou et Fantasio series, and the author's fifth, following the retirement from Spirou magazine of André Franquin.
Fournier wrote and drew the gri-gri du Niokolo-Koba, which is the twenty-fifth installment in the Spirou et Fantasio series and Franquin's fifth work after retiring from Spirou magazine.