Manon Jenkins has led a cherished childhood in the sleepy village of Five Saints in the heart of Wales, but when her beloved father dies she is left homeless and alone. She refuses to marry Morgan Lewis, a man she doesn't love and longs, instead, for Caradoc Jones, the son of a famous cattle drover. In desperation, she accepts a job as chaperone to Caradoc's spoilt sister and joins the drovers on the road to London. One heady, star-filled night, Caradoc finally becomes her lover, but she is devastated when he refuses to marry her. She is determined to survive without him in London, working as a herbalist, preparing medicines for sale. But when she realizes she is pregnant, she finds that it's not easy to escape the clutches of the Jones family . . .