The Vicar's Lot - The Island Connection, #6

Detective Sergeant Sarah Flemons and her new partner, Penny Chakyar, find themselves on a secretive mission in the Dordogne area of France. Fortunately for Sarah, Penny speaks excellent French. So too does The Vicar, who also finds himself on a mission of a different kind. Until now, The Vicar's past has been shrouded in the mists of time. Now it seems to have caught up with him and dictates his actions, which are even more drastic than his normal way of doing The Lord's work.
Meanwhile, who is Philippe Duval? And why does he have  scars near his ears and two fingers missing on one hand? And why was Michel LeBrun also a man on a mission before his body was found in the woods? It's all very confusing - until you read 'The Vicar's Lot'.