Asterix and the Soothsayer (bk 19)

Gaul was divided into three parts. No, four parts - for one small village of indomitable Gauls still held out against the Roman invaders. BOOK 19 One dark and stormy night, a sinister figure arrives in the little Gaulish village. Prolix claims to be a soothsayer and the villagers believe every word he says, but Asterix sees through his deception.