Okay, before I start the what-was-that-book communities, I shall seek knowledge from you, O vast cross-section of fandom!
Do any of you remember a book…pretty sure it was science fiction…where the villain was a weird evil fetus thingy? He could walk around, he was human sized, but he had that freaky fetal head thing going on, only bigger. Possibly he was telepathic, not entire clear on that, but he was definitely bad. I recall the weird eyes and whatnot being rather horribly vividly described and it gave me the screaming weeblies, and for some reason I forgot it for, oh, twenty years or so, and now it’s poking at my brain with a stick.
I am pretty sure this is neither “Lasher” nor “Demon Seed” which as I recall also involved freaky mutant fetuses.