In their first case together, Glaswegian police team DI Anderson and DS Costello chase the Crucifixion Killer

In their third mystifying case, Glaswegian police duo Anderson and Costello must solve the murder of a criminal with a mutilated face

Glaswegian police duo DI Anderson and DS Costello face their second disturbing case when two young boys are abducted

DI Costello must break the rules if she is to catch a ruthless killer in the tenth Anderson and Costello thriller

A macabre massacre of a wealthy family brings DCI Christine Caplan to the Highlands in her first thriller in a new series