Alien: A Novel Download What Sci-fi Novel Featured An Alien Race Stranded On Earth And Adapted Into Human Society?

What sci-fi novel featured an alien race stranded on Earth and adapted into human society? - alien: a novel download

Seeking a Roman forum asked a colleague:

"I'm happy for a certain book and hope that someone out there who are really hungry and I know some of the old arguments. Mainly because I forgot the title, author and editor (although it could be a" Double Ace " because I read a lot of them) in the sixties.

The book I am looking in the mid-sixties, maybe forty. The story is about an archaeologist, the ruins decrypted and notes that lived earlier, highly intelligent race, and covered the land (not Atlantis). The Holocaust was caused by a short circuit at power-grid. The entire population (after a certain time) to a man again-first century similar to ours. With the exception of a space ship full of scientists who have for many years and then back. The word (in your language) for the researchers was: "Mr." or "masters". "