ABANDONED. Science Fiction; Scientist finds evidence that aliens were here in the past ( in I think South America). Finds their lab and evidence that they were mating with humans.

[Renee]

Scientist finds evidence that aliens were here in the past ( in I think South America). Finds their lab and evidence that they were mating with humans.

[Peter]

Was this fiction that admitted to being fiction or fiction that claims to be non-fiction? If it's the latter, it could be something by Erich von Däniken.

[Lobstergirl, au gratin]

Renee, please add some plot details to your header. This could help your query get solved faster.

When did you read this? Author female or male? Remember the cover?

[Lobstergirl, au gratin]

Renee, are you still looking for this or did you find it?

[Kris]

No response, moving to Abandoned folder.

Renee (OP) was last active on the site in June 2017.