In this fast-paced adventure novel, Thomas Randolph, an historian and Knight Templar, must race across the country to save That-Which-Was-Lost. Joined by the husband of the president of the United States and other select Knights Templar, Thomas must piece together his knowledge of ancient lore and antient meridians in order to find That-Which-Was-Lost before rival Jean-Baptiste St. Jean LeNeuf, head of the Order of the True Rose Croix, can beat him to it. To make matters more complicated, Thomas is intrigued by Jean-Baptiste's sister, the mysterious Marie. But whose side is Marie on? Who can Thomas trust? And, most importantly, can he find That-Which-Was-Lost before the world comes crashing down on them?
