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.