A shred of evidence

When the body of 15 year old Natalie Ouspensky is found strangled near a public park in Stansfield, England, Detective Inspector Judy Hill and Detective Chief Inspector Lloyd have their work cut out for them. For Natalie wasn't quite the innocent her mother believes, and her classmates at Oakland School guard Natalie's secrets, and their own, like life itself. Then a shred of evidence points Hill and Lloyd in the right, and decidedly deadly, direction.