It is 1778, and the contractual marriage between Christian St. Clair and Catherine Trevane will unite two of the most powerful families in South Carolina. But when Catherine disappears just weeks before the wedding, both families are at their wits end and will do anything to find her. In desperation, Christian approaches Linnet, a local healer and wise woman, who is reputed to have unusual gifts. Linnet, an immortal and time travel guide, knows that Catherine has travelled across time and is now living in the 20th century but reluctantly agrees to bring her back to fulfil the marriage...