It would have been nothing more than a passing freak of Creation, like a comet, except that Eliza grabbed Jack's hand and pulled him along, so that they became part of that neighborhood for half an hour, as it rolled and nudged its way among the buildings of Amsterdam like a blob of mercury feeling its way through a wooden maze. Jack saw that they were anticipating news, not from some external source, but from within – information, or rumors of it, surged from one end of this crowd to the other like waves in a shaken rug, with just as much noise, movement, and eruption of debris as that would imply. Like smallpox, it was passed from one person to the next with great rapidity, usually as a brief furious exchange of words and numbers. Each of these conversations was terminated by a gesture that looked as if it might have been a handshake, many generations in the past, but over time had degenerated into a brisk slapping-together of the hands. When it was done properly it made a sharp popping noise and left the palm glowing red. So the propagation of news, rumors, fads, trends, &c. through this mob could be followed by listening for waves of hand-slaps. If the wave broke over you and continued onwards, and your palm was not red, and your ears were not ringing, it meant that you had missed out on something important. And Jack was more than content to do so. But Eliza could not abide it. Before long, she had begun to ride on those waves of noise, and to gravitate towards places where they were most intense. Even worse, she seemed to understand what was going on. She knew some Spanish, which was the language spoken by many of these persons, especially the numerous Jews among them.