I approach the anti-static point beside the nosewheel bay very cautiously: holding one end of a grounding strap at arm's length in front of me, the other fist clutching the stopwatch behind my back, legs tensed, ready to run. The grounding strap is basically a long conductive wire; the other end is attached to a villainous black signal generator Hastings pulled from the field exorcism kit—all bakelite and flickering needles on dials, like something out of a 1950s Hammer Horror flick. There's a small but bizarre diorama occupying the middle of the hastily cleared workbench it sits on: a model airplane from the souvenir shop, a rabbit's foot, a key-ring fob skull pendant, and a diagram carefully sketched in conductive ink.

Look, this isn't quite as spontaneously suicidal as it sounds. I don't go anywhere these days without a defensive ward on a chain round my neck that'll short out a class three offensive invocation, and Hastings is safely tucked away inside a grounded pentacle with Thoth-Lieberman geometry—he's safe as houses, at least houses that aren't sitting on top of a fault line wound up to let rip with a Richter 6.0 earthquake. As it happens, I do this kind of thing regularly, every week or so. It's about as safe as a well-equipped fireman going into a smoldering inflammables store to spray cooling water across the overheating propane tank in the corner next to the mains power distribution board. Piece of cake, really—as long as somebody's shut off the power.

"Are you centered?" I call over my shoulder to Hastings. "In the safety zone?"

"Yes." He sounds bored. "How about you?"

"I'll be okay." I keep my eyes peeled as I shove the plug on the end of the strap into the anti-static point, and twist. I've plonked my PDA down on the floor a couple of meters away and set it to audio, beeping like a Geiger counter in the thaum field. It ticks every few seconds, like a cooling kettle. The airframe itself is probably safe, unlike the blue-glowing instrument panel on the workbench, but it's a bigger physical hazard, which is why I'm tackling it first.

I take a couple of steps back, then straighten up and walk over to the signal generator. Where was I? Ah, yes. I flip a couple of switches and there's a loud chime, almost like a bell ringing, except slightly off-key. It sets my teeth on edge. "Degaussing resonator on," I say aloud. Continuing the checklist from memory: "Exclusion field engaged." I pick up my PDA, fire up the ebook reader, and shuffle round the airframe slowly, reading aloud as I go: words in an alien tongue not suited for human lips. The signal generator chimes periodically. There's your exorcism in a nut-shell: bell, book, and candle—although the candle is strictly optional if you're reading from a backlit screen, and the bell's a synthesized tone.