"Room’s gone," said Lev. "Assemblers. Their waiter, an old man, was wheeling a cart of coffee and desserts in, along the corridor from the main dining room. When he saw that it was as though there had never been a door, let alone a room, he became hysterical. Other guests went to his aid, Muscovites, unfamiliar with the place, hence unaware of a room having been there, so unable to understand what had happened. The restaurant’s security soon did, however."