John Christopher

The Guardians is a young-adult science fiction novel written by John Christopher and published by Hamilton in 1970. Set in the year 2052, it depicts an authoritarian England divided into two distinct societies: the modern, overpopulated "Conurbs" and the aristocratic, rarefied "County". Crowded city districts and …

The World in Winter is a 1962 post-apocalyptic science fiction novel by John Christopher. It deals with a new ice age caused by a reduction in the output of the Sun.

Fireball is the first book in the Fireball Trilogy by John Christopher, published in 1981, exploring the adventures of two cousins when they are suddenly transported into an alternative history Earth through a mysterious fireball.