When, after four hours of tedious and depressing make-believe, Mr. Krumm and Mr. Rosenblatt, representatives of the Census Committee of the Jewish Council of Prague, had knocked at every flat in the building, there were still three unaccounted for-all, as it turned out, on the fourth floor. But Josef thought he sensed futility-though he doubted his teacher ever would have admitted to it-in the old man's stoop.

"Maybe," Josef began, and then, after a brief struggle, let himself continue the thought, "maybe we ought to give up."

He was exhausted by their charade, and as they came out onto the sidewalk again, crowded with a late-afternoon traffic of schoolchildren, clerks, and tradesmen, housekeepers carrying market bags and wrapped parcels of meat, all of them headed for home, he was aware that his fear of being discovered, unmasked, recognized by his disappointed parents, had been replaced by an acute longing to see them again. At any moment he expected-yearned-to hear his mother calling his name, to feel the moist brush stroke of his father's mustache against his cheek. There was a residuum of summer in the watery blue sky, in the floral smell issuing from the bare throats of passing women. In the last day, posters had gone up advertising a new film starring Emil Jannings, the great German actor and friend of the Reich, for whom Josef felt a guilty admiration. Surely there was time to regroup, consider the situation in the bosom of his family, and prepare a less lunatic strategy. The idea that his previous plan of escape, by the conventional means of passports and visas and bribes, could somehow be revived and put into play started a seductive whispering in his heart.

"You may of course do so," Kornblum said, resting on his cane with a fatigue that seemed less feigned than it had that morning. "I haven't the liberty. Even if I do not send you, my prior obligation remains."

"I was just thinking that perhaps I gave up on my other plan too soon."

Kornblum nodded but said nothing, and the silence so counterbalanced the nod as to cancel it out.

"That isn't the choice, is it?" Josef said after a moment. "Between your way and the other way. If I'm really going to go, I have to go your way, don't I? Don't I?"

Kornblum shrugged, but his eyes were not involved in the gesture. They were drawn at the corners, glittering with concern. "In my professional opinion," he said.

Few things in the world carried more weight for Josef than that.

"Then there is no choice," he said. "They spent everything they had." He accepted the cigarette the old man offered. "What am I saying- 'if I'm going'?" He spat a flake of tobacco at the ground. "I have to go."

"What you have to do, my boy," Kornblum said, "is to try to remember that you are already gone."

They went to the Eldorado Cafe and sat, nursing butter and egg sandwiches, two glasses of Herbert water, and the better part of a pack of Letkas. Every fifteen minutes, Kornblum consulted his wristwatch, the intervals so regular and precise as to render the gesture superfluous. After two hours they paid their check, made a stop in the men's room to empty their bladders and adjust their getups, then returned to Nicholasgasse 26. Very quickly they accounted for two of the three mystery flats, 40 and 41, discovering that the First, a tiny two-room, belonged to an elderly lady who had been taking a nap the last time the ersatz census takers came to call; and that the second, according to the same old woman, was rented to a family named Zweig or Zwang who had gone to a funeral in Zuerau or Zilina. The woman's alphabetic confusion seemed to be part of a more global uncertainty-she came to the door in her nightgown and one sock, and addressed Kornblum for no obvious reason as Herr Kapitan- encompassing, among many other points of doubt, Apartment 42, the third unaccounted-for flat, about whose occupant or occupants she was unable to provide any information at all. Repeated knocking on the door to 42 over the next hour brought no one.

The mystery deepened when they returned to the neighbors in 43, the last of the floor's four flats. Earlier that afternoon, Kornblum and Josef had spoken to the head of this household: two families, the wives and fourteen children of brothers, brought together in four rooms. They were religious Jews. As before, the elder brother came to the door. He was a heavyset man in skullcap and fringes, with a great beard, black and bushy, that looked much more false to Josef than his own. The brother would consent to speak to them only through a four-inch gap, athwart a length of brass chain, as if admitting them might contaminate his home or expose the women and children to untoward influences. But his bulk could not prevent the escape of children's shrieks and laughter, women's voices, the smell of stewing carrots and of onions half-melting in a pan of fat.

"What do you want with that-?" the man said after Kornblum inquired about Apartment 42. He seemed to have second thoughts about the noun he was going to employ, and broke off. "I have nothing to do with that."

"That?" Josef said, unable to contain himself, though Kornblum had enjoined him to play the role of silent partner. "That what!"

"I have nothing to say." The man's long face-he was a jewel cutter, with sad, exophthalmic blue eyes-seemed to ripple with disgust. "As far as I'm concerned, that apartment is empty. I pay no attention. I couldn't tell you the first thing. If you'll excuse me."

He slammed the door. Josef and Kornblum looked at each other.

"It's forty-two," Josef said as they climbed into the rattling lift.

"We shall find out," Kornblum said. "I wonder."

On their way back to his room, they passed an ash can and into it Kornblum tossed the clipped packet of flimsy on which he and Josef had named and numbered the occupants of the building. Before they had gone a dozen steps, however, Kornblum stopped, turned, and went back. With a practiced gesture, he pushed up his sleeve and reached into the mouth of the rusting drum. His face took on a pinched, stoic blankness as he groped about in the unknown offal that filled the can. After a moment, he brought out the list, now stained with a nasty green blotch. The packet was at least two centimeters thick. With a jerk of his sinewy arms, Kornblum ripped it cleanly in half. He gathered the halves together and tore them into quarters, then tore the gathered quarters into eighths. His mien remained neutral, but with each division and reassembly the wad of paper grew thicker, the force required to tear it correspondingly increased, and Josef sensed a mounting anger in Kornblum as he ripped to smithereens the inventory, by name and age, of every Jew who lived at Nicholasgasse 26. Then, with a gelid showman's smile, he rained the scraps of paper down into the waste-basket, like coins in the famous Shower of Gold illusion.

"Contemptible," he said, but Josef was not sure, then or afterward, whom or what he was talking about-the ruse itself, the occupiers who made it plausible, the Jews who had submitted to it without question, or himself for having perpetrated it.

Well past midnight, after a dinner of hard cheese, tinned smelts, and pimientos, and an evening passed in triangulating the divergent news from the Rundesfunk, Radio Moscow, and the BBC, Kornblum and Josef returned to Nicholasgasse. The extravagant front doors, thick plate glass on an iron frame worked in the form of drooping lilies, were locked, but naturally this presented Kornblum with no difficulty. In just under a minute, they were inside and headed up the stairs to the fourth floor, their rubber-soled shoes silent on the worn carpeting. The sconce lights were on mechanical timers, and had long since turned off for the night. As they proceeded, a unanimous silence seeped from the walls of the stairwell and hallways, as stifling as a smell. Josef felt his way, hesitating, listening for the whisper of his teacher's trousers, but Kornblum moved confidently in darkness. He didn't stop until he reached the door of 42. He struck a light, then gripped the door handle and knelt, using the handle to steady himself. He passed the lighter to Josef. It was hot against the palm. It grew hotter still as Josef kept it burning so that Kornblum could get the string of his pick-wallet untied. When he had unrolled the little wallet, Kornblum looked up at Josef with a question in his eyes, a teacherly amalgam of doubt and encouragement. He tapped the picks with his fingertips. Josef nodded and let the light go out. Kornblum's hand felt for Josef's. Josef took it and helped the old man to his feet with an audible creaking of bones. Then he passed back the lighter and knelt down himself, to see if he still knew how to work over a door.