Eventually Jack descended to street-level, and found that he'd arrived in a better part of town, near the river. He headed, without thinking about it, toward his old playground, the Pont-Neuf. The street was a wiser place for him to be – persons who clambered about on roof-tops were not well thought of – but it was dark, and confined between the stone walls of the buildings. Even the view down the street was closed off by balconies jutting out more than halfway across it from either side. The houses all had great arched portals closed off by ironbound fortress-doors. Sometimes a servant would have one open just at the moment Jack happened by. He'd slow down and look through and get a glimpse down a cool shaded passageway into a courtyard lit with sun, half filled in by landslides of flowers, watered by gurgling fountains. Then the door would be shut. Paris to Jack and most others, then, was a network of deep trenches with vertical walls, and a few drafty battlements atop those walls – otherwise, the world's largest collection of closed and locked doors.