When Matthew Locke survives a shipwreck on the coast of Anglesey, he is cared for by the family of Llyws Llewellyn in the fishing village of Rhosneigr. During his recovery from the ordeal, he finds himself slipping through boundaries of time, becoming involved in events from Angleseys mysterious past. In these episodes, he meets, in different guises, Bryony, Llwys Llewellyns elder daughter, and it is here that their strange love affair begins. Set in Anglesey in the 1880s, and beginning with the loss of The Norman Court, a clipper in the Java sugar trade, John Wheatleys novel explores the shadowy territory between history, myth and fantasy.