In 1552, Celia de Bohun falls hopelssly in love with Stephen, the resident priest in the Catholic household of Sir Anthony Browne. Against his will, Stephen returns her love, and the pair become the victims of their savage times. Centuries later, their tragedy threatens the life and happiness of another Celia, the young, rich and unhappy wife of Richard Marsden and lady of the Sussex manor called Medfield Place. She can only be saved by piercing the green darkness of the past and revealing its mysterious truth.