Childhood's End

When the mysterious Overlords arrive on Earth, wars, disease and poverty soon disappear, leaving humanity under peaceful extraterrestrial supervision. Farmer and political intermediary Ricky Stormgren becomes one of the few people able to communicate with their representative, Karellen, although the visitors keep their true nature hidden. As the new order turns the planet into an apparent utopia, humanity must face what it may lose under alien rule, including its identity and culture.