Hak Nam. Tai Chang Street. The walls alive with shifting messages in the characters of every written language. Doorways flipping past, each one hinting at its own secret world. And this time she was more aware of the countless watching ghosts. That must be how people presented here, when you weren't in direct communication with them. A city of ghost-shadows. But this time Masahiko took another route, and they weren't climbing the twisted labyrinth of stairs but winding in at what would have been ground level in the original city, and Chia remembered the black hole, the rectangular vacancy he'd pointed out on the printed scarf in his room at the restaurant.