sentences:  This mild-mannered, timid official is the Mayor's assistant and right arm.He was first introduced in "Il y a un sorcier à Champignac" (1951), by Franquin and Henri Gillain.Gaston Lagaffe first made a discrete appearance in "Le voyageur du Mésozoïque", a slightly more noticeable appearance in "Vacances sans histoires", and had an active role in "La foire aux gangsters", before appearing in Franquin's two final Spirou adventures.