First Casualty, by Ben Elton

A terrific WWI book, panoramic in scope, that begins with Inspector Dan Kingsley, disgraced and thrown in prison for being a contentious objector, who finds himself unexpectedly sprung, given a new identity and shipped off to the Western Front to investigate the murder of an officer. It was fascinating, fun, surprising, sometimes funny, and I really, really enjoyed it. There is an absolutely hilarious scene in Chapter 36 in which the British soldiers are trying to work out how the war started and what they’re doing in it.