Quaestor Vexatius Sinustitis, who is about to expose the Roman governors creative accountancy, has been poisoned. Can Getafix brew an antidote? Only if Asterix and Obelix find a certain flower for the druids potion in Helvetia. What with bank safes, cuckoo hourglasses, yodelling and holes in the cheese, theyre soon on a real Helvetian roll.