Back to Zürich on an afternoon train, sleeping most of the way. He gets off at Schlieren, some ungodly dark hour, just in case They're watching the Bahnhof in town, hitches a ride in as far as the St. Pe-terhofstatt. Its great clock hangs over him and empty acres of streets in what he now reads as dumb malignity. It connects to Ivy League quadrangles in his distant youth, clock-towers lit so dim the hour could never be read, and a temptation, never so strong though as now, to surrender to the darkening year, to embrace what he can of real terror to the hour without a name (unless it's... no... NO. . . ): it was vanity, vanity as his Puritan forerunners had known it, bones and heart alert to Noth-ing, Nothing underneath the college saxophones melding sweetly, white blazers lipsticked about the lapels, smoke from nervous Fatimas, Castile soap vaporizing off of shining hair, and mint kisses, and dewed carna-tions. It was being come for just before dawn by pranksters younger than he, dragged from bed, blindfolded, Hey Reinhardt, led out into the autumnal cold, shadows and leaves underfoot, and the moment then of doubt, the real possibility that they are something else—that none of it was real before this moment: only elaborate theatre to fool you. But now the screen has gone dark, and there is absolutely no more time left. The agents are here for you at last…

What better place than Zürich to find vanity again? It's Reformation country, Zwingli's town, the man at the end of the encyclopedia, and stone reminders are everywhere. Spies and big business, in their element, move tirelessly among the grave markers. Be assured there are ex-young men, here in this very city, faces Slothrop used to pass in the quads, who got initiated at Harvard into the Puritan Mysteries: who took oaths in dead earnest to respect and to act always in the name of Vanitas, Emptiness, their ruler ... who now according to life-plan such-and-such have come here to Switzerland to work for Allen Dulles and his "intelligence" network, which operates these days under the title "Office of Strategic Services." But to initiates OSS is also a secret acronym: as a mantra for times of immediate crisis they have been taught to speak inwardly oss . . . oss, the late, corrupt, Dark-age Latin word for bone…

— Gravity's Rainbow by Thomas Pynchon (Page 267 - 268)