Glasshouse - Charles Stross [109]
We cruise up a residential street, low houses set back from the road behind white picket fences, separated by trees. It’s hot outside, loud with the background creaking of arthropods. We drive into a tunnel entrance. I take a deep breath. “New orders. Stop right here and wait sixty seconds. Then drive through the tunnel and keep going. Keep your radio turned off. At each road intersection, pick a direction at random and keep driving. Do not stop, other than to avoid obstructions. Accept one thousand units of credit. Continue driving until my credit expires. Confirm.” I bite my lower lip.
“Wait sixty seconds. Drive, turning randomly at each intersection, until credit limit exceeded. Avoid obstacles. Confirm?”
“Do it!” I say, then I open the door and pile out into the tunnel mouth with my kit. I wait tensely as the zombie drives off, then I start walking back into the blackness.
The tunnel darkens as it curves, and I pull the big metal flashlight out. Like everything else here, it’s probably not authentic, no electrochemical batteries—the same infrastellar T-gate that powers cars or starships will suffice to provide a trickle of current to a white diode plate. Right now, that’s good news. I shine it at the walls to either side as I walk, until I come to one of the recessed doors. Unlike the last time I came this way, I’m prepared for it. Out comes the hammer drill, and I only spend a few seconds sliding a stone bit into it—all that time in the garage has paid off, I guess. The racket it makes as it bites and chews at the concrete next to the door is deafening, but chunks of synrock fall away, and the air fills with acrid dust that bites at my lungs when I inhale. Should have brought a mask, I realize, but it’s a bit late now, and anyway, the sound and feel of the drill is changing as the bit skitters across bright metal. “Hah!” I mutter, resisting the frantic itch that keeps prodding me to look over my shoulder.
It takes me a couple of minutes to get enough of the surface of the doorframe exposed to be sure what I’m looking at, but the more I see, the happier I am. The concrete tunnel is a hollow tube, and the door is some kind of inspection hatch near a join. If I’m right, the join isn’t a T-gate, it’s a physical bulkhead designed to seal segments off in event of a pressure breach, which means this is part of a larger physical structure. This door will lead into the pressure door mechanism, and maybe via an airlock into other adjacent segments—up and down as well as fore and aft, I hope. The only problem is, the door’s locked.
I dig around in my pockets for one of the toys I took from the garage. Chopped-up magnesium from a block the hiking shop sold me, mixed with deliberately rusted iron filings in a candle-wax base—a crude thermite charge. I stick a gobbet of the stuff above the lock mechanism (which is annoyingly anchored in the concrete), flick my lighter under it, then jerk my hand back and turn away fast. Even with my eyelids tightly shut the flare is blindingly intense, leaving purple afterimages of the outline of my arm. There’s a loud hissing sputter, and I wait for a slow count of thirty before I turn round and push hard on the door. It refuses to budge for a moment, then silently gives way. The lock is a glowing hole in the partially exposed doorframe—I hope we don’t have a pressure excursion anytime soon.
I step through the door and glance around. I’m in a small room with some kind of crude-looking machine occupying most of it. Gas bottles, axles, physical valves. It looks as if it was built during the stone age and designed to be maintained using tools from the hardware store. Maybe it was? I scratch my head. If this hab was originally configured for some kind of paleo cult, made to resemble one of the polities of old Urth, it would