Philippe Grimond

Asterix and Obelix leave for Britain with a barrel of Getafix's magic potion to help the village of Anticlimax, Asterix's Breton cousin, resist the Roman invasion.

When Getafix becomes an amnesiac lunatic after being struck by Obelix's menhir, Asterix tries to cure him, all while his fellow villagers are being conned by a phony soothsayer.