Elves novel

What was 60’s or 70’s novel about a world under the cities?
There was the hallucinogenic “waybread of the elves” some kind of lichen or something.
Swords and searches and rescues and the entrance to the world is in your basement.

Not the 60’s or 70’s, but could it be Rick Shelley’s The Varayan Memoir from the early 90’s?

Wow, Omar, what brought you back to this thread?

Anyway, moving to Cafe Society, which didn’t exist when this thread was created.

20 Years Later is the best heading I’ve seen over a thread on the Dope. Say what you want, but I really like the new system/software.

Yeah, I certainly don’t like everything about the new system, but marking large time jumps is a nice feature.