Mackenzie's Paris was the Paris of 1969. Sent to an all-girls boarding school, feeling abandoned, and leaving the boyfriend she loved behind, she confronted her new world with little trust. Her home became a French château fabled to have been a haven for the French Resistance. The Paris she knew was conflicted by its past and by its future. Mackenzie betrayed her own belief falling in love with a man she could never have. This Paris was a Paris full of secrets. The discovery of a hidden passageway and the legacy of a gold coin set off an adventure she would live with the rest of her life. What she found in Paris uncovered a forgotten mystery that haunted the foundation of all humanity. Now she has a dangerous secret-one that could change the world or destroy it. This is Mackenzie's secret.