As they left the city center, there were fewer people in the street, which forced him to extend the distance between them by a few more meters, in case she happened to turn around, because if she recognized him as the man she’d thought she knew outside the bar, she’d realize that he’d been following her ever since. She walked at a steady pace, neither slow nor fast, apparently calm and sure, and her dark brown hair, with the same rhythm as the loud clicks that her heels made against the gray pavement — Nula had observed this when he’d been closer — bounced silently against her nape and the top of the back. After a few blocks, at the end of the promenade, she turned the corner, walked east one block, and, crossing the street, turned on 25 de Mayo, the first street parallel to San Martín. Now they walked on the sunny sidewalk, opposite the cars and the buses that moved south toward the city center. From a distance she seemed taller, and Nula guessed, without checking too closely, that when she made a quick pivot on the sidewalk, or when she stepped for a few seconds into the street, it was to avoid the broken patches of sidewalk he knew by memory, the missing paving stones or the potholes where, despite the week that had passed since it last rained, there still trembled a rectangular, stagnant puddle that had yet to evaporate. The red blur of the dress vibrated in the distance, mobile and vivid in the early afternoon sun that glimmered off the windshields of buses, off the windows and the chrome bodywork of the cars, troubling the soft calm of the air.
Another thing that hadn’t occurred to Nula was that their route was taking him straight to his own house. La India’s apartment building was accessed in the middle of the block through an interior garden, faced on two sides by rows of apartments that divided the block without completely separating the two halves: despite the fact that the garden and the apartments took up the full depth of the block, the building stopped before the next cross street, and there was no other entrance but the main one, on 25 de Mayo. In the late forties, when they were built, the apartments were unusual and expensive — at that time they called them luxury tenements—and if they still conserved a sense of upper middle class dignity, time had mistreated them badly. Most of the residents were owners, and they’d formed a co-op, with La India as vice-president, to keep the complex in good condition and raise funds from the municipality for restoration. The main entrance, dominated by curves, granite staircases, and chrome banisters, evoked both the prosperous years of its construction and the avant-garde flirtations of its local architects.
On the next corner, Lucía changed sidewalks, crossed the street that intersects 25 de Mayo, and started down La India’s block. Nula did the same, but when he saw that she had stopped at the entrance to his own building and was peering inside, curiously, he stopped at the corner to watch her. Lucía walked up the three staircases that separated the garden from the street and looked in, curiously, but also with a slow caution. Then, hesitantly, she disappeared inside. Nula was about to follow her in when she reappeared. She seemed dissatisfied, and also slightly disoriented. She stood thinking on the top step, quickly looked back inside, checked her watch, walked down to the street, took a few steps to the north, then turned around suddenly and started walking straight toward the spot where Nula was standing. He was about to slip into the ice cream shop on the corner, owned by a friend of his mother, but he thought that if she wanted to interrogate him it would be better if it happened on the street, which was empty just then, and so he waited, looking right at her, watching her approach with that decisive step, neither slow nor fast, absorbed in her thoughts, as though she were measuring the words she planned to say when she reached him, but when she got to the corner she glanced up suddenly and gave him the same look she’d given him when they saw each other outside the bar, in which Nula thought he sensed a fraction of a second of recognition, but she sank back, almost immediately, just like before, into her thoughts, and she turned down the cross street. Playing it safe, Nula stayed where he was, and, as she moved down the tree-lined street, was easily able to study her. The pools of sunlight that filtered through the leaves and onto the sidewalk passed quickly over the body in red that advanced through the beams. Halfway down the block, Lucía stopped in front of a door, glanced cautiously inside, then kept walking. Nula started following her again. Just as she was turning the corner, Nula reached the door she’d stopped at and read the brass plate attached to the walclass="underline" Doctor Oscar Riera, Clinical Medicine. Afraid he’d lose sight of her, he hurried away, and reached the cross-street almost at a run, but he had to stop suddenly when he turned the corner, because she had stopped again and was staring, with the kind of concentrated attention that could have been called blatant indiscretion, into another house. Nula waited for her to keep walking and then started after her again. The girl’s singular behavior worried him. Beyond its apparently strange, even comical or ridiculous aspect, there was also something slightly unsettling about it. He’d have preferred not to follow her, but at the same time he sensed that in the short half hour that had passed since he started following her, she had traveled deep into his own life. Lucía turned the next corner and Nula sped up again. When he came around the corner he saw that she was stopped outside a house halfway down the block, leaning toward a door and pushing a key into the lock. Nula started walking faster and faster, hoping to exchange another quick look with her, but by the time he reached the door she had already passed through, and he just managed to hear the metallic sound of the lock as the key was turned from the inside.
He must have had a strange look on his face, because La India, who had been waiting with lunch, looked at him inquisitively once or twice, but, pretending not to notice, he only told her, in passing, that he felt like he might be getting sick. So La India prepared him an effervescent aspirin after lunch and he shut himself in his room till it was time to open the kiosk. Lying in bed, he lit a cigarette and gazed up at the ceiling. Lucía’s strange behavior — he didn’t yet know that was her name — must have had a rational explanation, and if what he came up with later had to be discarded, a kind of disquiet lingered. Only the last of the sudden stops in her strange circuit of the block seemed to have a rational explanation, since she’d obviously gone into her own house, or at least a house she had a key to. What intrigued him most was the symmetry of the four points: on the block (a perfect square) the four points where she’d stopped were, in fact, symmetric. The W point (for west), La India’s apartment, was symmetrical to the E point (for east), also halfway down the block on the street parallel to 25 de Mayo; and the S point (for south), the office of Doctor Riera, was halfway down the cross street and symmetrical to the N point (for north), the house into which she finally disappeared. The facts were plain: she’d come to a stop exactly halfway along each side of the square that formed the block. That symmetry, if it followed some specific purpose, could be acceptably rational, but what troubled him was thinking that this specific purpose might be unknown or in fact (and has he began to suspect) nonexistent. He could also reverse the problem and think that it might not be the behavior itself that was troubling but rather the purpose that provoked it. And here Nula started looking for the most calming explanation possible, in which both the ends and the behavior itself were rational.
It occurred to him that the girl in red — oh how he wanted to see her again! — could’ve been an architect or an urban planner. On the one hand, she could have been inspecting the houses out of curiosity, and her strange demeanor was the result of her feeling somewhat guilty for her presumption and fearful of being witnessed. And the same could be said if she was an urban planner: after seeing the unique way the forties-era luxury tenements had been built, that is, with the entrance that, without quite dividing the block in half, nevertheless went the full depth, opening parallel to 25 de Mayo, she may have wanted to verify the effects of that strange construction on the buildings on the other three sides that, with 25 de Mayo, formed the block’s perfect square. But those explanations, in fact, reminded him of Aristotle’s distinction between arguments that are absolutely true and others, in contrast, that only appear to be, and, disheartened, he couldn’t tell which argument belonged to which category. Not including the garden/complex, the houses she’d stopped in front of were three typical middle-class homes from the fifties and sixties, just like so many others on the same block and on every other block in the neighborhood. Meanwhile, the girl’s thoughtful expression and her somewhat extravagant curiosity suggested the opposite of rationality. No: after a detached shuffle through the most likely hypotheses, among which was the possibility that she was simply looking for a specific house, but without having much information to go on, Nula, hoping to maintain the self-respect of a rational being, a term he liked to borrow from popular philosophical jargon, he had to discard them all. The most likely answer, as far as Nula could see, of course, was that Lucía, in a manner of speaking, and, to continue with the architectural theme, was missing a few bricks from her terrace. Nula used the expression, he imagined, with detached, wry cynicism, not realizing that he was pinned to the bed by the unease that it provoked, by the profound conviction that even if it were true it wouldn’t change in any way the decision that he’d made the moment that girl came into his life, and by his feverish summary of the events as he tried to make some decent sense of them: the look outside the bar, the compulsive way he’d followed her, the movement of the red blur as it moved along at an even pace, neither slow nor fast, down the bright sidewalk, the four symmetrical stops Lucía made on the perfect square that formed the block.