This is an excellent debut, in which the protagonist, DCI Thomas Lamb, reminds me of Foyle, from Foyle's War. Headquartered in Winchester in Hampshire, it involves multiple murders and as many suspects. First Lamb is faced with a new DI, Harry Rivers, with whom he served in the last war, and Harry blames him for the death of his friend Eric Parker, whom Rivers had talked into enlisting with him. He died while he and Lamb were trying to take out some German machine placements, a hero. But Rivers has deep resentments about the death. He is also being transfered to Lamb's Constabulary having bollixed up a prior case in his old constabulary.
They are investigating the death of an elderly man, who was believed to be a witch, and he has been killed in a ritualistic way that mimics a killing 60 years earlier of a witch. Rivers is ready to jump right in and arrest the man's niece and her lover, George Abbott, illegally entering their homes, as he had in his prior case. But Lamb has reservations and the case gets complicated when a young pregnant woman is also killed. There is a ward of Sir Jeffrey Pembroke's that is thought by some to be scary, as he is seldom seen and does not talk. Peter Wilkins, however, is a brilliant artist, particularly of insects and butterflies, and seems to be trying to communicate to a number of people throught his drawings. Peter has in fact witnessed too much of the bad things going on in the area. In the course of the investigation more people die as Lamb finds pictures of naked young boys, including Thomas Bennett, who ran away from Pembroke's summer camp, was returned to him, and the Resurrection Home for Boys director, Gerald Pirie says was adopted. He was not and Peter writes on his drawings that Thomas is dead.
Vera Lamb, Lamb's daughter, and the air warden of Quimby, on the coast, has also received drawings, and is being harrassed by Arthur Lear, with whom she had an affair. She has decided to break away from Arthur, only to have him accuse her of sleeping with Peter, and menace her. In a bombing gone wrong a exploded German bomber drops onto property near the case, and the British plane that brought it down falls into a farm of the Noel Lear, killing him and Arthur as he tries to save his father.
Once Lamb puts the pieces together and finds the photo album that Peter took from Pembroke he realizes that Pembroke is a pedophile and has murdered all the individuals that he thinks might reveal his secret.
I found the characters well developed and was particularly attached to Lamb. He is intelligent, intuitive and compassionate. His superior, Superintendent Harding believes in his abilities and gives him leaway to solve the case, while Rivers runs around guessing at the killer and trying to get ahead of Lamb to arrest someone, never identifying the real murderer. The author lends reality to the story and the time by putting the reader in the mind of a German bomber pilot, Hermann Seitz. He thinks his bosses (Goering...) don't known what they are doing, is scared, and eventually dies as he attempts to bomb sites that he cannot see, and without proper protection from Messerschmitts. They do not have the distance capability to follow the bombers into Britain and are overcome by the British Spitfires over the Channel.
A well written and compelling story.