The Hungry Tide — Lucy Gillen

When Rachel accepted the job of looking after the small orphaned boy, Nicholas, she took to her little charge immediately. But her new job was, it soon appeared, not going to be all plain sailing. There were problems and there were mysteries....

It was Nicholas's enigmatic uncle, Neil Brett, and his attractive cousin, Lars Bergen, who were to prove the biggest problems in her new life.

Did it all go back to the beautiful Lynn, Nicholas's mother, about whose death there still seemed to be a mystery? And how, in any case did any of it concern Rachel?