This heart-pounding thriller from multi-award-winning number-one bestseller Mark Billingham sees DI Tom Thorne take the biggest risk of his career as he and DI Nicola Tanner investigate a series of brutal killings in London

'Groundbreaking and gripping' Sunday Times

A BLOODY MESSAGE

As DI Nicola Tanner investigates what appears to be a series of organised killings, her partner Susan is brutally murdered, leaving the detective bereft, and vengeful.

A POWERFUL ALLY

Taken off the case, Tanner enlists the help of DI Tom Thorne to pursue a pair of ruthless killers and the broker handing out the deadly contracts.

A CONSPIRACY OF SILENCE

As the killers target their latest victim, Thorne takes the biggest risk of his career and is drawn into a horrifying and disturbing world in which families will do anything to protect their honour.

From number one bestseller Mark Billingham comes a masterful, intense crime novel that pits DI Tom Thorne against an evil beyond comprehension, yet shockingly real.

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'One of the great series of British crime fiction' The Times

'Billingham is a world-class writer' Karin Slaughter