As Mark Roundly sorts through his recently deceased grandmother's possessions, he discovers a diary written by an uncle that intrigues and inspires Mark to travel to a Chateau in France to piece together the unfinished memoirs from George's involvement as a member of the French Resistance. Before he died his uncle had suspected there was a traitor in their midst; could Mark find out who he was, and had he been uncovered? As Mark begins to investigate and unravel the mysteries of his uncle's diary, he soon finds himself immersed in a sinister environment - and in peril as someone tries to kill him. Why had his uncle left so many secrets locked away in a series of unfinished diaries? Who was out to murder who; and would the traitor be finally exposed?