Just finished reading “Childhood’s End” by Arthur C Clarke, Once again a fantastic but eerily plausible scenario, Just as is characteristic of most ACC’s stories this one should also be read for the social picture it paints.
Earth is suddenly descended upon by an alien race much more powerful than humans and benevolent – their demands are simple end war and injustice…
Physically these aliens are in the shape of what we associate as the devil… …
The entire novella was available on some bookz site I can’t seem to remember the URL, yes of course I do have an electronic version still 😉
[UPDATE]
https://www.geocities.com/novelbookz/ it is all there and some more – ENJOY!
[/UPDATE]