She heard him pacing around his office. Unearthly siren-sounds converged on them from all over the night. “There is a face,” Hilarius said, “that I can make. One you haven't seen; no one in this country has. I have only made it once in my life, and perhaps today in central Europe there still lives, in whatever vegetable ruin, the young man who saw it. He would be, now, about your age. Hopelessly insane. His name was Zvi. Will you tell the ‘police,’ or whatever they are calling themselves tonight, that I can make that face again? That it has an effective radius of a hundred yards and drives anyone unlucky enough to see it down forever into the darkened oubliette, among the terrible shapes, and secures the hatch irrevocably above them? Thank you.”

Thomas Pynchon, The Crying of Lot 49