The Freemasons are in trouble. And once more, Sara Walsh, hero of The Templar Succession, is on the case. Pennsylvania: A powerful Mason is murdered. And a statue of Benjamin Franklin containg a dark secret is destroyed. Calgary: At the foot of the Canadian Rockies, lies The Compound, an exclusive Masonic Resort. There, buried under a mountain is the Masonic Museum, home to the Lodge's best kept secrets. From the Museum an old Manuscript which could destroy the Lodge goes Missing. With nowhere else to turn, Sara Walsh, the world's foremost Masonic historian is asked to connect these events and find the Manuscript. Chasing a trail of symbols from museums and libraries to a cemetery and the depths of the Susquehanna River, Walsh finds herself questioning everything she'd ever believed about the Lodge. And she finds herself faced with a vengeful enemy, more dangerous than anyone she's ever encountered before.