Empty World By (author): "John Christopher"Genres:Young Adult books Fiction books Science Fiction books Post Apocalyptic books Dystopia books Apocalyptic books ISBN0435122452ISBN139780435122454AsinEmpty WorldOriginal titleEmpty WorldWhen a deadly virus kills off most of the world's population, a teenaged boy tries to survive in a seemingly empty England. (John Christopher is one of several pseudonyms used by British author Christopher Samuel Youd.)