An absolutely gripping crime thriller with a massive twist.



Eighty-one-year-old Eddie Wakefield is found brutally murdered at the nursing home where he lives. Crudely carved into his flesh—while he was still alive—is the number fifteen.



Detective Jack MacIntosh and his team are determined to track down the ruthless killer of this frail elderly man. But the investigation is leading nowhere.



Then the second body is discovered. The victim was stabbed to death in their own home. Again, the number fifteen is etched into the dead man's flesh.



A single clue leads to St Bartholomew's School for Boys, a grim and forbidding institution on England's south coast—and a series of shocking secrets stretching back more than forty years.



What is the significance of the number fifteen . . . and is Jack prepared for the horrifying truth?