The Mirror World is one of the locations visited in the fifth Dark Parables game, The Final Cinderella. It is the home of the Godmother Amelia, as well as the location of the Forbidden Grove. It is accessible through portals created from standard mirrors.
The Mirror World is home to the Forbidden Grove, a place where the trees are corrupted by the souls of thieves, who have died there. The wood from these Evil Trees is cursed and can cause profound effects when used in woodworking. Local flower sprites try to protect people from happening upon the Grove by blocking paths to it with vines and brambles.
How Amelia, Geppetto and Pinocchio came to live in the Mirror World is unknown, but we know that their wooden cabin was not built there. It was originally found in the East, as seen in The Oriental Cinderella. It is likely that Amelia used her magic to move the cabin closer to the Forbidden Grove. Whether this move was made before or after Geppetto's death is unknown, as is the history surrounding Amelia's castle.
A Glass Wasteland exists in the Mirror World, adjacent to Amelia's castle, where the Glass Maidens of Amelia's creation are all kept. Last seen, the curses on these maidens were still intact, keeping them all in their glass forms.
There is a beanstalk in the Mirror World, which leads up to the Sky Kingdom.
The events of The Final Cinderella end with the Mirror World fully intact. However, the Evil Tree in the Forbidden Grove has been destroyed. What effect this might have on the Mirror World is unknown.