I shelved my thinking about the Mori hit — Ozawa was the more immediate problem, and that meant I needed to practice with the picks on the door locks I’d bought earlier. Not having a vise to clamp them in, I used a drawer, which I pressed closed with a knee while I worked. This made the job considerably more difficult, but that was good. As the nandemoya had said, from here on it was a matter of practice.
At three in the morning, about as late as it could get before it started getting early again, I rode Thanatos into Kita-Senju, nothing in my bag but the curling iron, the VOM, and the extension cord; nothing in my pockets but a wad of cash and my new lock picks. I parked the bike near the station and walked from there. The last trains had stopped running hours earlier, and the last taxis had delivered the last late salaryman not long after that. The air was cool and moist and utterly still. Other than a lone cat assessing me silently from between two refuse containers, I saw not a living soul.
I approached Daikoku-yu indirectly, first circling it, listening intently, hearing nothing. The front was lit as fully as it had been the evening before, when it had been open for business. I hadn’t counted on that. But unlikely that anyone would be watching from one of the few houses with a view of the entrance. I ducked beneath the noren curtains, slid my lock picks to the back of one of the shoe cubbies, and waited inside the vestibule. If the worst happened and the police showed up now, at least I wouldn’t have any burglar tools in my possession. If I’d been caught lurking outside a bank, doubtless it would be another matter, but I thought the idea of breaking into a sentō would be sufficiently absurd that even if the police did show up, they would probably let me go rather than have to deal with the paperwork.
Of course, if that were to happen, I would still have to figure out how to get to Ozawa. I needed this to work.
After ten uneventful minutes, I felt it was safe to proceed. I knocked on the door and waited. Nothing. I knocked again, louder this time. Unlikely as hell anyone was in there, but better to blurt out some bullshit about having left my wallet earlier that day than to be caught red-handed working the lock. Still nothing. Okay. I retrieved the picks and got to work. There was more light than I could reasonably have hoped for — an uncomfortable amount, in fact, despite the partial privacy afforded by the vestibule and the noren—so at least I didn’t have to work entirely by feel, which was a skill I wouldn’t acquire until much later. Between the oyaji’s quality instruction, the time I’d spent practicing afterward, and, to be fair, the low quality of the lock itself, it took only a minute to get inside. I kept my shoes on, violating Japan’s stringent customs about such matters, but if things went sideways, I sure as hell wasn’t going to have to hoof it back to Thanatos barefoot. The lights were off inside, but there was enough indirect light coming from the windows and skylight in the bathing area for me to get by. I used a shirtsleeve to wipe down the doorknob and other surfaces I’d touched, then retrieved a towel from a hamper and cleaned my soles carefully, less out of respect for custom than to be certain I wouldn’t leave any dirt on the immaculate floors, which would certainly be noticed.
I padded silently into the bathing area, the spacious room ghostly now, light from outside shimmering off the still waters of the ofuro. I heard water rhythmically dripping from somewhere and the faint hum of a fan, but other than that, the room was silent.
I walked over and checked the door I had noticed the day before, the one next to the mineral-water baths. I was pleased to find it locked. Pleased, because if they kept it locked it wouldn’t occur to them that someone might have gotten inside. And it might also suggest that they didn’t access the room often themselves. Otherwise, having to lock and unlock it would have been more of a hassle than it was worth.
I opened the lock so quickly that for a moment, I was afraid I’d broken it. But no, it was simply old and the tumblers were just unusually forgiving. The room was windowless and dark. Shit, I should have brought a flashlight. I closed the door and flipped on the light switch. A dangling incandescent bulb came on overhead, revealing a tiny room, not much more than a closet, really. The walls were lined with shelves on which were set various tools — a hammer, a saw, a power drill. There were buckets of tile grout and cans of paint. The tools, I noted, were rusty, the paint cans collecting dust. There was nothing of an everyday nature: no cleaning supplies, no neat stacks of towels. It smelled slightly musty, too, as though the door hadn’t been opened in some time. As I had hoped, this room was used to store things that didn’t need accessing very often. The everyday stuff, apparently, was kept somewhere else. Good.
I knelt, scanning under the shadows cast by the shelves. There was an outlet on the wall adjacent to the mineral-water baths. I smiled.
I was going to plug in the extension cord I’d brought, but then thought of that electric drill I’d just noticed. And sure enough, on one of the higher shelves, I found a heavy-duty extension cord. I was about to pull it down when I remembered I had to be careful about touching things. Damn it. I should have brought gloves as well as a flashlight. All right, I was learning. Afterward, I’d review everything to figure out what I could have done better, and then implement it all going forward — what the military called an after-action report. For now, I’d have to improvise.
There were some old rags alongside the paint cans, and I used them to retrieve the extension cord and plug it in. I was about to connect the curling iron when something occurred to me — was there any chance the outlet would be governed by the light switch? Unlikely in a storage room, where no one would plug a lamp into an outlet, but still I didn’t want to take the chance. I connected the curling iron and flipped off the light. Within seconds, the iron began to get hot. Okay, the outlet was live, and with or without the light. I flipped the switch back on, went out to the mineral-water bath, and hooked up the VOM, putting the leads in near the drain. I came back, grabbed the iron, took a deep breath, and tossed it into the far end of the tub.
I waited a moment. No flickering lights, no electrical shorts, nothing. Excellent. Not a perfect experiment because during business hours they might be running some appliances that were off now, but another amp or so of draw on a system that was already handling, say, a washing machine and air conditioner would represent a trivial amount of extra load. The iron itself, I noted, white and with a white cord, wasn’t particularly noticeable against the background color of the bath. Of course, it would be easier to see during the day. But I thought I might have a way around that.
I unplugged the iron and fished it out, then checked the VOM. Fifty-eight milliamps — much higher than I’d gotten at the hotel, I supposed due to a higher concentration of salts than what I’d managed to duplicate in my practice session. The materials I’d read at the library claimed 100 milliamps was the lower end of the fatality range. But that was for point of entry. What really mattered was what happened in the chest cavity, and there, 6 milliamps was considered fatal. If I put nearly 60 milliamps into the water at the same moment Ozawa grounded himself by gripping the faucet, I was reasonably confident that a sufficient portion of the electricity would travel straight through his heart.