On the river Sorgue in Provence lies Vaucluse la Fontaine, a village of some two hundred souls. The emerald green waters of the river turn the great wooden wheel of the old paper mill, where Jean Louis has lived from the age of eight.Now a young man, Jean Louis is excited, if a little apprehensive, as he leaves the village on his trusted mare Sorrel. He feels proud that Brother Xavier, the leader of the monks who runs the old paper mill, has asked him to deliver an important letter...