When the chief suspect in the notorious Peek-a-boo cop killer case blew himself up, almost taking lead investigator DCI Duncan Bone with him, the psychologically damaged detective thought his days on the force were over. But when another PC is abducted and murdered in the same deranged Peek-a-boo fashion, Bone is persuaded to return to lead the new investigation. But as Bone and his team hunt a copycat killer, and with time running out before yet another cop is slain, Bone’s terrifying past returns to tear open old wounds and push him to very edge of the abyss. Can DCI Bone end the killing before the killing ends him? Set among the dramatic hills and glens of Scotland's Campsie Fells, Dark is the Grave is the first in a series of edge-of-your-seat crime thrillers that will keep you guessing right up to the nail-biting, heart-stopping climax.