Childhood's End — Arthur C. Clarke

THE LAST GENERATION OF MANKIND ON EARTH

Without warning, giant silver ships from deep space appear in the skies above every major city on Earth.

They are manned by the Overlords...mysterious creatures from an alien race who soon take over control of the world.

Within fifty years, these brilliant masters have all but eliminated ignorance, disease, poverty and fear.

Then suddenly this golden age ends...and the end of Mankind begins!