The league of night and fog

From the Vatican to the Swiss Alps, from Australia to the heartland of America, the two masterful operatives known as Saul and Drew are being drawn together to solve a violent riddle: Why have ten old men been abducted from around the world? When the agents, weary of their own covert wars, begin to investigate, they are pulled into a terrifying cycle of revenge that began in the heart of World War II and is now forcing sons to pay for their fathers darkest sins