The house sitter - Peter Lovesey

The House Sitter
The identification of the woman found murdered on Whiteview Sands poses more questions than it answers. Emma Tysoe was a respected psychologist and an official criminal profiler with several successful cases to her credit. Peter Diamond is brought into the investigation to shed some light on the matter - and discovers that she had been secretly commissioned to work on the profile of the person who has assassinated one celebrity and is threatening to kill more. Are these killings connected to Emma's death? Diamond thinks so, but he cannot persuade his colleagues to agree with him, and even he cannot make all the pieces fit the jigsaw he's envisaged.

Upon a Dark Night
Peter Diamond, the traditionalist dinosaur of Bath CID, finds the low murder rate in the city a touch frustrating, so he decides to check whether a couple of suicides which his colleague is investigating have been accurately classified. But soon Diamond has a 'proper' case to get his teeth into when a woman's body is found in the garden of a flat after a somewhat drunken party. None of the other guests knew her and it is not clear whether she slipped, jumped or was pushed. Without any clue as to the woman's identity, Diamond certainly has a puzzle to satisfy his quirky talents.