The drying-out part was fine. But I couldn’t understand why he’d gone into the cellar in the first place. There was just a furnace down there. And a water tank. Maybe, when he heard me breaking in, he decided to hide. It was possible. But the guy didn’t strike me as the hiding kind. There must have been some other reason. I wasn’t thrilled at the idea of going belowground but whatever drew the guy down there was my only clue as to where he might have gone. I stood up, grabbed the ladder, and started to descend. I went faster this time. I figured that if the rungs could take his weight, they could sure as hell take mine.
I found a footprint at the bottom of the ladder. Another big one. I could see where the guy had turned. And walked over to the wall. To the section directly below the door to the bathroom. Then he’d stopped. And stood still. There was a pair of prints, side by side. But I couldn’t see where he went next. I crouched down and checked the floor from every available angle. There was nothing. The trail had vanished.
I spun around, gun out in front. I had a sudden vision of the guy charging at me from behind the furnace or the water tank. I figured he could have made the footprints as a lure so he could attack me from behind. But there was no one racing toward me. No one was there at all. It was like the guy had just walked through the wall.
I turned back and rapped the wall with my knuckles. Maybe there was a hiding place behind it. Or a safe room. But the wall wasn’t hollow. It was the opposite. It sounded dense. Solid. Far more so than I would have expected for such an old structure. I moved to the side until I was beneath the smaller bedroom. I rapped again. The note was different. It was lighter. Emptier. I tried beneath the larger bedroom. That also sounded thin and flimsy. I went back to the center. Tried again there. I hadn’t imagined it. It was like a castle wall in comparison. I took out the knife. Extended the biggest blade. Stabbed the surface. The wood was old. It looked desiccated and weak. The knife penetrated. But not far. Only three quarters of an inch. Then it hit something hard. Some kind of metal. I tried six inches to the right. The result was the same. I shifted another six inches. And another. I hit metal every time. The tenth spot I tried was different. The knife sank in all the way to the handle. Six inches beyond there, it sank in again.
I moved to a thin gap between the panels near the third and fourth places I’d hit metal. I jammed the blade in as far as it would go, then pushed to the side and tried to lever the wood forward. The surface layer separated. It came off in a jagged hunk, but a strip was left behind. I tried a foot lower and got the same result. It was the original wood. I was sure of that. But it was stuck to something with incredibly strong glue. Something metal. It must be a door. I couldn’t see any other explanation. But I also couldn’t see any handle. Or keyhole. Or any method of opening it at all.
I started at the top left and worked systematically across and down. I was pushing with my fingertips, checking every square inch. Looking for a concealed button. Or a secret flap. Or anything a lock could be hidden behind. I found nothing. I tried the sections of wall on either side. Had no luck there, either. I tried kicking the wall. There wasn’t a hint of movement. Not even any noise. It was muffled by the wooden skin. I turned, raised my knee, and drove my heel back like I had done at Fenton’s hotel. It didn’t even make a dent.
I began to search the walls farther to the side, then stopped. Putting the controls so far away didn’t make sense. I had no experience with safe rooms but I assumed that if someone like Dendoncker had one, he would want to be able to get in it quickly. The whole point was to use them in an emergency. That implies a high degree of urgency. You wouldn’t want to go to the far corner of the cellar to operate some kind of elaborate mechanism. Even keying in a PIN could be too much of a delay. Plus PINs can be guessed or discovered or betrayed. Some kind of remote control would be a better solution. Like cars have. Then another thought struck me. Sonia said the gate at Dendoncker’s plant was operated by a transponder. And if that was a technology Dendoncker trusted in one key area of his operation, why not in another?
If a transponder was needed to open this hidden door, Mansour must have one. I didn’t know what they looked like. I thought back to that morning, when I searched his pockets at the morgue. To his keyring. Transponders serve the same function as keys. That would be a reasonable place to keep one. And Mansour’s had one thing that stood out. The square piece of plastic. I had dismissed it at the time as a fob. The guys at The Tree also had them. I pulled out the Chevy’s keys. There was nothing similar on its ring. I guess the guy I took it from wasn’t senior enough. Which left me with a self-defeating proposition. The only way to get a transponder was to take one from Mansour. But if I could get my hands on him to take his transponder, I wouldn’t need it anymore. I figured the best option was to wait for him to come back out. Or to trick him into coming out. Or to lure another of Dendoncker’s stooges down there. And hope he had enough juice to warrant a transponder.