<p>She thought his death would destroy her ... but his return was far worse.<br>Nancy and Calder are moving from London to an isolated slate island, off the west coast of Scotland. But, for Nancy, the fresh start is undermined by the stark surroundings, mysterious locals and the discovery of Calder's dark past. Then one of Nancy's nightmares plays out in real life: Calder's boat upturned in the bay, his body adrift in the icy water...