It is a vastly green field of trees and rocks, home of the Gloomy Wood Trolls. The forest is located in parallel to the Pixie Village in the real world. This was where the pixies were held captive in the Legendarium World. The Tree of Life was bound by the forest's roots, preventing the Pixies to escape. Aisha ended up rescuing the Pixies after defeating the trolls and bringing the Tree of Life back into the real world.
In "Legendary Duel", after Selina conjures the Alfea Champions to fight the fairies as she duels with Bloom. Everyone is surprised when the statues of the Alfea Champions becomes alive, and they have a hard time fighting the three powerful fairies. Eldora asks Daphne if the Alfea Champions have a weak spot, and she explains that they refused pixie bonding. Aisha then gains the idea of going to Gloomy Woods to free the pixies from the Legendarium World.
In Gloomy Wood, Nex and the pixies wish Aisha good fortune. She transforms into her Mythix and enters the Gloomy Wood Forest. In its version in the Legendarium World, she hears Ninfea's cry for help from the Tree of Life, but is attacked by the Gloomy Wood Trolls. She fights most of them and scares the others. Using a spell, she frees the pixies from the tree. Coming out of the Legendarium World, everyone is happy to see each other. Although Ninfea wants to celebrate, Aisha tells them to bond with the fairies of Alfea to defeat the Alfea Champions.