It's September 1939, and as World War II erupts, a career-imperiled U.S. Army officer and extraordinary Polish nun leave Warsaw for the Vatican with orders to put a macabre pair of relics beyond the reach of the occult-obsessed Nazis. Modern mysteries soon vie with ancient ones, however, as their initial plans quickly go awry, new dangers emerge at each stage of the journey, and appearances repeatedly prove deceiving. While staying one step ahead of pursuing Nazis, fascists, and Soviet agents, the soldier and sister must also navigate their own internal landscapes of doubt and belief, sorrow and hope on A Flight to Rome. This crackling mystery is marked by steadily building suspense, mordant humor, a rich dive into history, and jaw-dropping twists and turns.