The fact that the office building was under renovation provided huge advantages in using it as a surveillance platform. Its façade was obscured by a tangle of scaffolding, ropes, tarps, lashed bamboo, extension cords, work lights, and pneumatic hoses. Amid all that clutter, Alastair’s equipment—which was really quite modest in size—could easily go unnoticed. Their primary camera peered out through a hole, no larger than the tip of Olivia’s finger, in the blue tarp.