Narration
Upon arriving home, Jack discovers a manila envelope, containing the map and doily Nott was working on. Inside is a handwritten note, apologizing for leaving -- apparently he's been conscripted by Ruby to investigate the Bismarck.
With the doily overlay re-constructed on the map, Jack can see a good portion of the city's ley lines. Theo's laptop, and the odd patterns also drawn on the doily, remain a mystery -- a mystery that apparently he's the only one working on now.