Historical mysteries in Normandy

Did the sexton of the Dieppe church really attend a meeting of the living dead? What was a Victorian military hero whose grave was vandalised doing in Caen? Why was an opera dedicated to the cruel and violent medieval lord whose ruined castle stands on a promontory near Rouen? When were hundreds of human skeletons piled up under the roofs? Uncover some of Normandy's most amazing historical secrets!