Prudence and twelve-year-old Dan were foundlings, and the dangers in a northern mill had pushed them into escape - with Pru disguised as a boy. It was sheer bad luck when the coach of Sebastian, Lord Wentworth came bowling round the corner. Sebastian took them with him on his journey, but Pru was sure of two things - he mustn't discover she was a girl, and she would continue to search for her family - no matter how her feelings kindled for Sebastian.