OT: Can't remember name of science fiction novel

[geoschmo]

Ugh, I consider myself fairly good at researching stuff, but I haven't found a whiff of your story here. How did the story refer to telepathics? Was the word telepathy used, or psionics, or something else. Were telepathic individuals called espers, seers, simply telepaths? Anything that might trigger a memory that we could use to narrow it down some. You used the term "telepathic underground" in quotes. Is that because it was a phrase you remember being used specifically?