In Paris seeking her French lineage, Mary Magdalena Forsythe (Maggie) discovers a priceless historic grail which belongs to a legendary secret society -- The Priory of Sion - and is hotly pursued by a rapacious collector. Romance and adventure follow Maggie as she travels to the South of France in search of her namesake and the grail's origins. There, she experiences a spiritual link with Mary Magdalene, along with insights into the Jesus and Mary Magdalene liaison and her own personal grail connection. The story's events challenge Maggie to confront her soul's journey, changing her life forever.