No Graves As Yet (#1 in the Reavley's WWI series)

by Anne Perry (read Jan 2004)
The 2 Reavley brothers discover that the accident that killed their parents was really murder. Shortly before he was murdered the father had said he had a document that would change life for England and bring her shame. Perry artfully weaves connections between pacifist students at Cambridge, one of whom is also murdered, and German agents who may be planning "a conspiracy to ruin England and everything we stand for." The intrigue is further complicated by jilted lovers and jealous spouses at the university, all with grudges against an alleged blackmailer in their midst who may also be privy to exam cribbing and other illicit goings-on. Perry's title, a quotation from G.K. Chesterton, is a portent of the carnage that soon awaits the youth of England, yet by the final resolution of this gripping case, many graves have regrettably already been filled in Cambridge's serene churchyards.