Our story starts back in Arthurian times with witchcraft, sorcery and magical talent, telling how the deeds of Merlin and Morgana Le Fay stretch through the centuries to entwine with the lives of three young girls. Hear tell of how Celina the youngest daughter of Lord and Lady Carvel of Ripon, along with her maid and companion Jane move to London in a desperate attempt to redeem the fortunes of Fountains Abbey. Before long Celina finds herself in terrible danger as the forces of hell itself are sent to destroy her, Celina only surviving the first attack with the help of a long dead sorceress. Recovering from an attack Celina, befriending a strange orphan girl, soon finds herself and Jane thrown into a desperate fight against creatures of the underworld, not only to save Celina's own life but the world itself, until finally she becomes a true Knight of the Church.