by Iain Pears

This novel about idealism and its attendant disappointments begins in the fifth century B.C.E., when a scholarly writer named Manlius devoted his life to upholding the ideals of civilization against creeping barbarism--a resolve that includes armed force. The story continues into the 14th century, during the time of the Black Plague, when an agent seeking out ancient manuscripts for Pope Clement VI (of the Avignon Papacy) comes across Manlius's Neoplatonist manuscript (