Fever of the Bone: Tony Hill and Carol Jordan Series, Book 6

Meet Tony Hill's most twisted adversary - a killer with a shopping list of victims, driven by the most perverted of desires. The murder and mutilation of teenager Jennifer Maidment is horrific enough on its own. But it's not long before Tony realises it's just the start of a brutal and ruthless campaign that's targeting an apparently unconnected group of young people. Tony battles to find the answers that will give him personal and professional satisfaction in his most testing investigation yet.