Author of Obsequies At Oxford, continues the highbrow investigations of Gervase Fen, as he mocks and means through two murders, demonology, and enemy broadcasting. Fen leads the local police about, but is forced to step aside when the Yard takes over, and proceeds on his own to run down the pro-Nazi agitators in a danger laden finish. Enclycopaedic cathedral details, and some mountebanking. Fancy.