A half flight of concrete stairs descended into a basement corridor lit by a few bare lightbulbs. The security consultants waved them down a corridor for twenty paces or so, and into a room filled with blue-gray light sifting in through a couple of dirty sidewalk-level windows. This was situated adjacent to the bottom of what Zula guessed was the building’s main stairway. It wasn’t difficult to see that the building had been designed around a central core that included not only the stairway but all the other stuff that had to run vertically: the plumbing, the power, the sewer lines. So this room was replete with pipes, valves, meters, crazy electrical wiring, and fuse panels. There was no Internet gear—in fact, no post–Second World War technology at all—which was hardly surprising, but did raise the question as to where the REAMDE guys were getting their connectivity. But all the buildings in China were webbed together with improvised wire and so they were probably pirating it from somewhere else.