When Detective Mark Turpin is assigned the task of investigating the death of a local businessman, the case is first thought to be one of accidental drowning.Until a bullet hole is found where the victim fell into the River Thames.Then a number of graves are unearthed at a disused airfield site being redeveloped by the dead man, exposing a horrific secret and plunging Mark into one of the darkest investigations of his career. After two more bodies are discovered amongst the burnt-out ruins of a building on a nearby industrial estate, Mark realises that a serial killer is at large.Except as the police draw closer, the killer already has their next victim in their sights – and both have disappeared without a trace...The Eleventh Grave is the sixth book in the Detective Mark Turpin series from USA Today bestselling author Rachel Amphlett, and perfect for fans of fast paced twisty mysteries.