SOLVED. Old pulp sci-fi book about traveling to Mars after finding secrets under Stonehenge. [s]

[Josh]

I read this book when I was a kid, and I think it was a 60s/70s pulp sci-fi book (I remember the battered paperback having the look of that).

It was about a guy who found some secret, found a door under Stonehenge, got trapped somewhere and I specifically remember he gets taken prisoner (some shadowy group out to get him) and there was a double-paned glass window that he wedges matches or something into a hole after he managed to get a screw out, with a torn t-shirt for batting, and smacks it with the heel of his shoe and basically makes the window explode so he can escape. And he somehow ends up on Mars, but Mars has all these old ruins, or treasure? It was a strange book and I only remember certain parts, I kind of remember it was maybe a hard-boiled first-person style, but not certain.

I think, at the beginning, he had found some Martian (I think he didn’t know this) tech or docs (?) under Stonehenge and used that to make himself rich by “inventing” all these things, but then years later got the attention of some bad people and then abducted and somehow ended up on a strange Mars?

[Joanna]

Published in the 80s, but could it be Icehenge?

[Josh]

Thanks, Joanna, but that’s not it unfortunately.

[Genesistrine]

A Trace of Memory by Keith Laumer?

https://www.goodreads.com/book/show/1...

[Josh]

That’s it! Thanks so much, Genesistrine!

[Genesistrine]

Josh wrote: "That’s it! Thanks so much, Genesistrine!"

Glad to help!