But what was being built here, while possibly very large, was not available to the naked eye. The gray floor had been marked out in what she guessed were two-meter grid squares, loosely drawn in some white powder delivered by one of those spreaders they use on athletic fields. She could see one of these, in fact, a forest-green uniwheeled hopper, propped against the far wall. This grid didn’t seem to be perfectly aligned with whatever grid system the city and this building were aligned with, and she made a note to ask about that. In the illuminated area stood two twenty-foot folding tables, gray, attended by a scattering of Aeron chairs and by carts loaded with PCs. It looked to her like workspace for two dozen people, though there didn’t seem to be anyone here but this big-nosed Bobby.