"One hot August day in 1994, 75 holidaymakers are ferried to an uninhabited island off the North Norfolk coast. Only 74 return alive. A young man has been stabbed and left to bleed to death in the island's surf. The case is never solved."--Jacket.

When the newspapers turn up to cover Ruby Bright's 100th birthday, they find her seaside care home is a murder scene. Someone spirited Ruby away by wheelchair down to the water's edge on the idyllic north Norfolk coast, and strangled her. But why kill a harmless centurion? As Detective Inspector Shaw and Detective Sergeant Valentine investigate, it's clear Ruby wasn't the first victim, and nor is she the last. All trails seem to lead back to the old...