‘The past is more important,’ agreed O’Brien gravely. They emptied their glasses, and a moment later Julia stood up to go. O’Brien took a small box from the top of a cabinet and handed her a flat white tablet which he told her to place on her tongue. It was important, he said, not to go out smelling of wine: the lift attendants were very observant. As soon as the door had shut behind her he appeared to forget her existence. He took another pace or two up and down, then stopped.