Fever of the Bone
 The story centers on the investigation of the murders of several teenagers who, at first, can only be connected by their use of the fictional social networking site RigMarole. Along the way, Carol has to deal with the pressures placed on her by new Chief Constable James Blake, which include an attempt to lower the costs of the investigation by using in-house profiling help instead of going to Dr. Hill. Tony, meanwhile, is dealing with a personal loss that forces him to re-examine several long-held beliefs.