The town of Arden in the west of Scotland is old. Its history is lost in the mists of time. But history keeps repeating itself and Arden has had a troubled history since ancient times. Nick Ryan returns to Arden to settle down in his childhood home. But Arden’s disturbing history is about to catch up with him. As he uncovers the truth about his home town something has awoken under the dark rock that looms over the estuary. It is hungry. And angry. The ancient walls which kept it in check have been breached. It wants to be free. It will wreak its revenge. All that stands between it and Arden are Nick Ryan a brain-damaged man and the young daughter of a childhood friend. They stand alone as the nightmare begins.