The New York Trilogy by Paul Auster

Moving in this manner was difficult for Quinn. He was used to walking briskly, and all this starting and stopping and shuffling began to be a strain, as though the rhythm of his body was being disrupted. He was the hare in pursuit of the tortoise, and again and again he had to remind himself to hold back.
    What Stillman did on these walks remained something of a mystery to Quinn. He could, of course, see with his own eyes what happened, and all these things he dutifully recorded in his red notebook. But the meaning of these things continued to elude him. Stillman never seemed to be going anywhere in particular, nor did he seem to know where he was. And yet, as if by conscious design, he kept to a narrowly circumscribed area, bounded on the north by 110th Street, on the south by 72nd Street, on the west by Riverside Park, and on the east by Amsterdam Avenue. No matter how haphazard his journeys seemed to be—and each day his itinerary was different—Stillman never crossed these borders. Such precision baffled Quinn, for in all other respects Stillman seemed to be aimless.
    As he walked, Stillman did not look up. His eyes were permanently fixed on the pavement, as though he were searching for something. Indeed, every now and then he would stoop down, pick some object off the ground, and examine it closely, turning it over and over in his hand. It made Quinn think of an archeologist inspecting a shard at some prehistoric ruin. Occasionally, after poring over an object in this way, Stillman would toss it back onto the sidewalk. But more often than not he would open his bag and lay the object gently inside it. Then, reaching into one of his coat pockets, he would remove a red notebook—similar to Quinn’s but smaller—and write in it with great concentration for a minute or two. Having completed this operation, he would return the notebook to his pocket, pick up his bag, and continue on his way.
    As far as Quinn could tell, the objects Stillman collected were valueless. They seemed to be no more than broken things, discarded things, stray bits of junk. Over the days that passed, Quinn noted a collapsible umbrella shorn of its material, the severed head of a rubber doll, a black glove, the bottom of a shattered light bulb, several pieces of printed matter (soggy magazines, shredded newspapers), a torn photograph, anonymous machinery parts, and sundry other clumps of flotsam he could not identify. The fact that Stillman took this scavenging seriously intrigued Quinn, but he could do no more than observe, write down what he saw in the red notebook, hover stupidly on the surface of things. At the same time, it pleased him to know that Stillman also had a red notebook, as if this formed a secret link between them. Quinn suspected that Stillman’s red notebook contained answers to the questions that had been accumulating in his mind, and he began to plot various stratagems for stealing it from the old man. But the time had not yet come for such a step.
    Other than picking up objects from the street, Stillman seemed to do nothing. Every now and then he would stop somewhere for a meal. Occasionally he would bump into someone and mumble an apology. Once a car nearly ran him over as he was crossing the street. Stillman did not talk to anyone, did not go into any stores, did not smile. He seemed neither happy nor sad. Twice, when his scavenging haul had been unusually large, he returned to the hotel in the middle of the day and then reemerged a few minutes later with an empty bag. On most days he spent at least several hours in Riverside Park, walking methodically along the macadam footpaths or else thrashing through the bushes with a stick. His quest for objects did not abate amidst the greenery. Stones, leaves, and twigs all found their way into his bag. Once, Quinn observed, he even stooped down for a dried dog turd, sniffed it carefully, and kept it. It was in the park, too, that Stillman rested. In the afternoon, often following