Dans les Coulisses de Black et Mortimer (Le Sanctuaire du Gwondana)

André Juillard is a French scriptwriter, illustrator and comic strip artist. He was one of the leading authors of French-language historical comics in the 1980s, with series such as Les Sept vies de l'Epervier and Plume Aux Vents. Juillard then branched out into the contemporary world with albums such as Le Cahier Bleu and Après la pluie, before returning to Blake and Mortimer in 2000.