Former Justice Department operative, Cotton Malone, has been asked to assist the Swiss guard with determining whether Cardinal Jason Richter has engaged in bribery and theft. It's a favor for Stephanie Nelle, once his boss at the Magellan Billet, who is doing a favor for the Vatican. But nothing is as it seems. Three hundred thousand euros are found, a Swiss Guardsman is murdered, and a killer sets his sights on both Cotton and the cardinal. Together they are thrust into a search for a forgotten document, a 16th century Pledge of Christ executed by Pope Julius II that reveals a debt owed by...