The Debt - Glenn Cooper - Bog

While browsing the Vatican libraries, Cal Donovan uncovers a 200-year-old secret that could bankrupt the Catholic Church. Unearthing evidence of a crippling 25-billion-euro loan, Cal must intercede with the Sassoon family to whom the sum is owed. But who can be trusted? If Cal isn't careful, he'll find more than his own life at danger.