I’d transformed a ramshackle century-old wooden horse barn into the most advanced applied physics laboratory in the world. Maybe the world would even survive it. At least I hadn’t needed to install a furnace. The dozens of computers generated endless waste heat. Industrial capacitor banks filled half the floor, each bank looming like a Costco four-pack of coffins and radiating its own warmth. The buzzing cyclotron more warmth. Even the phalanx of glowing electron guns surrounding the fifteen-foot copper pentagram laid over the only flat concrete in the place fought the chill. With the spray-foam insulation over the gaps in the walls, the barn remained above freezing even in Minnesota’s unspeakable winter. Not too warm—I didn’t want Jane Doe’s corpse to thaw out too much. All that electr

