An American expatriate, Sarah Cabot, is discovered to be a descendent of Joan of Arc and is crowned Queen of France in the near future. Her new security clearance allows Sarah to venture beneath Rennes le Chateau and the ruins of Perillos to discover the shocking truth about the Garden of Eden and Sion. Her lifelong questions about the Rennes le Chateau mystery and the Davidic bloodline are answered and Cabot soon discovers why the priest of the tiny hilltop village was so flippant to his superiors. She must find a way to rule France despite the disturbing reality of the road to Sion.