In surveillance the first requirement is finding a suitable place from which to watch, a place to track your target’s movements and maintain a steady supply of water and food. The ideal situation would be to have a room from which Ushikawa could see Tengo’s apartment. He could set up a camera with a telephoto lens on a tripod and keep watch over movement in the apartment and who came in and out. Since he was alone on the assignment, twenty-four-hour coverage was impossible, but Ushikawa figured he could cover it for ten hours a day. Needless to say, however, finding a suitable place was going to be tricky.

Even so, Ushikawa walked the neighborhood, searching. He wasn’t the type to give up easily. Tenaciousness was, after all, his forte. But after pounding the pavement of every nook and cranny of the neighborhood, Ushikawa called it quits. Koenji was a densely populated residential area, flat with no tall buildings. The number of places from which Tengo’s apartment was visible was very limited, and there was not a single one he thought he could use.

Whenever Ushikawa had trouble coming up with a good idea, he liked to take a long, lukewarm soak in the tub, so he went back home and drew a bath. As he lay in the acrylic bathtub, he listened to Sibelius’s violin concerto on the radio. He didn’t particularly want to listen to Sibelius—and Sibelius’s concerto wasn’t exactly the right music to listen to at the end of a long day as you soaked in the tub. Perhaps, he mused, Finnish people liked to listen to Sibelius while in a sauna during their long nights. But in a tiny, one-unit bathroom of a two-bedroom condo in Kohinata, Bunkyo Ward, Sibelius’s music was too emotional, too tense. Not that this bothered him—as long as there was some background music, he was fine. A concerto by Rameau would do just as well, nor would he have complained if it had been Schumann’s Carnaval. The radio station just happened to be broadcasting Sibelius’s violin concerto. That was all there was to it.

As usual, Ushikawa let half his mind go blank and thought with the other half. David Oistrakh’s performance of Sibelius went through the blank half of his mind, like a gentle breeze wafting in through a wide-open entrance and out through a wide-open exit. Maybe it was not the most laudable way of appreciating music. If Sibelius knew his music was being treated this way, it was easy to imagine how those large eyebrows would frown, the folds of his thick neck coming together. But Sibelius had died long ago, and even Oistrakh had long since gone to his grave. So Ushikawa could do as he pleased and let the music filter from right to left, as the unblank half of his brain toyed with random thoughts.

In times like these, Ushikawa didn’t like to have a set objective. He let his thoughts run free, as if he were releasing dogs on a broad plain. He would tell them to go wherever they wanted and do whatever they liked, and then he would just let them go. He sank down in the bathwater up to his neck, closed his eyes, and, half listening to the music, let his mind wander. The dogs frolicked around, rolled down slopes, gamboled after each other tirelessly, chased pointlessly after squirrels, then came back, covered in mud and grass, and Ushikawa patted their heads and fastened their collars back on. The music came to an end. Sibelius’s violin concerto was a roughly thirty-minute piece—just the right length. The next piece, the announcer intoned, is Janáček’s Sinfonietta. Ushikawa had a vague memory of hearing the name of the piece before, but he couldn’t remember exactly. When he tried to recall, his vision turned strangely cloudy and indistinct, as if a cream-colored mist had settled over his eyeballs. He must have stayed too long in the bath, he decided. He gave up, switched off the radio, got out of the bathtub, wrapped a towel around his waist, and got a beer from the fridge.

Ushikawa lived by himself. He used to have a wife and two small daughters. They had bought a house in the Chuorinkan District in Yamato, in Kanagawa Prefecture. It was a small house, but they had a garden and a dog. His wife was good-looking enough, and his daughters were even pretty. Neither daughter had inherited anything of Ushikawa’s looks, which was a great relief.

Then, like a sudden blackout on the stage between acts, he was alone. He found it hard to believe that there had ever been a time when he had a family and lived with them in a house in the suburbs. Sometimes he was even sure the whole thing must be a misunderstanding, that he had unconsciously fabricated this past for himself. But it had actually happened. He had actually had a wife he shared a bed with and two children who shared his bloodline. In his desk drawer, he had a family photo of the four of them. They were all smiling happily. Even the dog seemed to be grinning.

There was no likelihood that they would ever be a family again. His wife and daughters lived in Nagoya now. The girls had a new father, the kind of father with normal looks who wouldn’t embarrass them when he showed up at parent-teacher conference day. The girls hadn’t seen Ushikawa for nearly four years, but they didn’t seem to regret this. They never even wrote to him. It didn’t bother Ushikawa much either that he couldn’t see his daughters. This didn’t mean that his daughters weren’t important to him. It was just that now his top priority was simply keeping himself secure, so for the time being he had to switch off any unnecessary emotional circuits and focus on the tasks at hand.

Plus, he knew this: that no matter how far away his daughters went from him, his blood still flowed inside them. His daughters might forget all about him, but that blood would not lose its way. Blood had a frighteningly long memory. And the sign of that large head would, sometime, somewhere in the future, reappear, in an unexpected time and unexpected place. When it did, people would sigh and remember that Ushikawa had once existed.

Ushikawa might be alive to witness this eruption, or perhaps not. It didn’t really matter. He was satisfied just to know that it was possible. It wasn’t like he was hoping for revenge. Rather, he felt content to know that he was, unavoidably, an inherent part of the world’s structure.

He sat down on his sofa, plopped his stubby legs up on the table, and, as he sipped his beer, a thought suddenly came to him. It might not work out, he thought, but it was worth trying. It’s so simple—why hadn’t it occurred to me? he wondered, finding it odd. Maybe the easiest things are the hardest to come up with. Like they say, people miss what’s going on right under their noses.

The next morning Ushikawa went to Koenji again. He saw a real estate agency, went inside, and asked if there were any apartments available for rent in Tengo’s building. But this agency didn’t handle that building. All rentals in that apartment building were handled by an agency in front of the station.

“I sort of doubt there are any units available,” the agent said. “The rent is reasonable, and it’s a convenient location, so few people move out.”

“Well, I’ll ask anyway, just to make sure,” Ushikawa said.

He stopped by the agency in front of the station. A young man in his early twenties was the one who dealt with him. The man had jet-black hair, hardened with gel to the consistency of a bird’s nest. He wore a bright white shirt and a brand-new tie. He probably hadn’t been working there long. He still had marks from pimples on his cheeks. The man flinched a bit when he looked at Ushikawa, but soon recovered and gave him a pleasant, professional smile.

“You’re in luck, sir,” the young man said. “The couple on the first floor had some family issues that arose and they had to move out quickly, so one of the units has been vacant for a week. We finished cleaning it yesterday but haven’t advertised it yet. It’s on the first floor so it might be a bit noisy, and it doesn’t get a lot of sun, but it’s a wonderful location. There is one condition of the contract, however: in five or six years the owner plans to completely rebuild the place, so when you receive notice of that renovation six months ahead of time, you’ll need to move out, with no complaints. Plus, there’s no parking lot there.”