The Cluny Problem: A Chief Inspector Pointer Mystery

Cluny is an ancient town in France better known for its past then its present, in other words, the perfect place for tourists and travelers. When a local wine grower who provides accommodations for the better sort of English tourist in his villa decides to entertain his guests with a masked ball it promises to be a pleasant diversion. But the diversion turns to tragedy when two of the attendees are found dead in a locked room, apparently as a result of a duel. But, was it really a duel foug...