INSTANT #1 INTERNATIONAL BESTSELLER An elite secret society of killers has controlled the world's treasures for hundreds of years...until one member tears himself free to salvage his soul and protect his daughter's life in this "astoundingly original, relentlessly paced, and purely authentic" (Jack Carr) debut. The single greatest work of art in the world is not in the Louvre or The Met, or in any private collection. In...