"Cassiopeia Vitt is building an authentic French castle,using only materials and techniques from the 13th century. But when a treasure is unearthed at the construction site - an ancient Book of Hours -- a multitude of questions are raised, all pointing to an ancient and forgotten religious sect - the Cathars.

"Luke Daniels is in London, between assignments with the Magellan Billet, when he receives a frantic call from an old friend. Jillian Stein is in trouble. She made a mistake and now her life may be in danger. She needs Luke's help. Immediately. Racing to Belgium Luke quickly finds that she was right. A shadow team of highly-trained operatives are there on the hunt. Intervening, he finds himself embroiled in a war between two determined sides-one seeking...

Pulitzer Prize-winning investigative journalist Tom Sagan and an unscrupulous zealot, Zachariah Simon, square off in a dangerous game to find the key to a 500 year-old mystery--a treasure with explosive political significance in the modern world: the lost treasures of the Temple of Jerusalem.