Born a twin, soon to be fourteen-year-old Deirdre is besieged by brutal superstitions of the medieval age in which she lives. As much as she pretends to take no notice of fearful village gossips, Deirdre knows she is different than other young women. Contrary to a life as a wife and mother envisioned for her by her father, she believes in a future in which she, although female, will one day have glorious adventures like those shared by the noble men in her life. To prepare, she has her twin brother Rhys secretly teach her the combat lessons he receives as he trains for knighthood. Unexpectedly, Deirdre's ambitions shatter. She is ordered to accompany her older sister Nia to learn the manners and feminine wiles of court life. Then crisis hits Camelot. Allegiances are challenged. Perceptions change. A prophecy foretelling the fall of King Arthur threatens to become reality. As danger threatens everywhere Deirdre learns castle life is more than sewing and gossip. She quickly discovers the pitfalls of entertaining amorous knights. She becomes embroiled in ruthless plot that takes her far from all she knows and tests her once thwarted ambitions to confront life bravely.