Fan Wujiu leads Yao Shen through parts of Youdu he has never seen before; out of the sinuous, dizzying streets with all their improbable skyscrapers and into what looks like an underground system. The city's guts.
Layers upon layers of construction that lay beneath the ground and have been built upon. All of Youdu's past buried underneath its present.
The underground tunnels are like sunken streets, still bearing the marks of all the feet that have walked them.
To Yao Shen they seem labyrinthine and dizzying, but Fan Wujiu knows his way around, switching from tunnel to tunnel and lowering his head in anticipation of the stretches where the ground above them sinks down.
Eventually, they come to a stop in front of a doorway half submerged in soil.
Fan Wujiu stretches out his fingers and a black seal flies towards the the door, slamming it open with a bang.