A young woman, Rose, finds a dead body in the ruins of Glastonbury Abbey in England. But what starts out as a murder mystery soon becomes a much more complex story interweaving genuine history and mythology with elements of fantasy and romance. Rose, her conflicted teacher Maggie, and a young Scot o n a quest are caught up in the timeless battle of good and evil, joining a tarnished saint to redeem the Holy Grail itself from the clutches of a very polished devil.