The charm of spending the Christmas holidays in South Wales, with its crumbling castles and ancient myths, seems the perfect distraction from the nightmares that have plagued literary agent Lyn Ravenshaw since the loss of her baby five years ago. Instead she meets an emotionally fragile young widow who's convinced that Lyn's recurring dreams have drawn her to Castle Farm for an important purpose – and she's running out of time. With the help of a reclusive, brooding playwright, Lyn begins to untangle the mystery and is pulled into a world of Celtic legends, dangerous prophecies and a child destined for greatness.