The geography of the underworld is different from that of the mortal world, but Chen Shi had once understood that changes in the mortal world's locations would also prompt changes in the underworld.
For instance, if one enters the underworld from Huangpo Village, dense fog prevails, within which terrifying ghosts and goblins lurk to devour the souls of the dead. However, entering the underworld from Dejiang would lead to the River of Oblivion, with its waters hiding children beneath seashells.
And entering the underworld from Phoenix Ridge results in a field of lotus, where ghostly deities hide in the skies to guard the lotuses.
The Lord of Wuwang Manor determined from the underworld's geography that the crescent moon had most likely made its way to Yudou.
