The Mirror-Marches
From The Fifth City Wiki
A lush and stinking amber place of trees and eyed vines and orchids twining round mirror-frames.
The Mirror-Marches are a forest in Parabola where the mad and lost congregate. It is filled with broken mirrors and crumbling temples. Staring into its mirrors may remove your nightmares-or drive you further towards insanity.[1]
It is possible to enter from the Royal Bethlehem Hotel through the mirrors of the Mirror-Marches.[2]