'Subject: Murder' (1945) is a detective novel by Clifford Witting based on his personal experience as a bombardier in an anti-aircraft detachment. Peter Bradfield, the detective constable colleague of series character Inspector Charlton, is the narrator. We follow him from basic training in Wales to his various transfers to other posts eventually landing him in an anti-aircraft detachment between the villages of Etchworth and Sheep, and coincidentally just outside of Lulverton where he and Charlton are based as policemen. The arch villain of the story, Battery Sgt. Major Yule - 'Cruel Yule' to the bombardiers he oversees - is sadistic, manipulative and narcissistic. Throughout the novel he proves to be one of the most odious villains in the entire genre.