The Crystal Menhir (Asterix & Obelix XXl 3)

The year is 50 B.C. Gaul is entirely occupied by the Romans. Well, not entirely... One small village of indomitable Gauls still holds out against the invaders. One day, the village druid, Getafix, receives a strange letter. It is from Avina Gandir, the high priestess of Thule! She warns the druid of a grave threat to his people and asks him to take a mysterious Menhir out of its hiding place...