If you think that religion, sex, the aristocracy and mystery might make a good crime novel, TRY THIS ONE!
A police investigation into the violent death of a part-time cathedral verger stalls for lack of incriminating evidence. However, three people have a close interest in clearing the matter up where the police have failed: the dead man's sister, anxious to see justice done, and two of the police suspects, both released without charge but keen to clear their names.
Striking out on their own, each approaches the murder from a different perspective: book-trafficking on the black market; revenge by an extremist religious organisation for the dead man's betrayal of them; and retaliation in a case of blackmail. The police continue to maintain that the murder was committed out of sexual anger, even though they have no proof apart from the circumstances of the verger's death.
Eventually DI Moat and his assistant DS Stockwell, from the North Yorkshire Force, take a hand. Moat pays his predecessors in the investigation, both professional and amateur, the compliment of taking their findings seriously - but comes up with an idea of his own.