A text box appeared, typing itself out in the old green monospace font of a 1990s CNC terminal: SELECT TOOLPATH. Seth blinked. He moved his mouse. The cursor, now a crosshair, hovered over the virtual figure. OPTIONS: [1] CONTOUR. [2] DRILL. [3] SURFACE FINISH FLOWLINE. His hand trembled. This wasn’t a simulation. He reached out and touched his actual desk. The virtual desk on-screen updated instantly, showing a heat map of his fingerprint. The software was mapping the world.

He fell asleep to the hum of his PC’s fans. He woke to silence. No fan hum. No city noise. Just a deep, subsonic thrum, like a lathe spinning a block of steel in slow motion.

Seth’s blood ran cold. Mill 3 was three miles away, at the shop. He looked at the left screen—the turbine blade model was gone. In its place was a live video feed from the security camera above Mill 3. The spindle was descending. There was no metal block on the table. Just an empty vise, jaws wide open.

He clicked download. 15.7 GB. Four hours remaining.