This is the second incarnation of the Yggdrasil Labyrinth, a forest area growing around the great Yggdrasil Tree, leading upward toward the skies, close to the Grand Duchy of High Lagaard, The labyrinth has been recently opened to exploration, in hopes that the explorers would eventually find a way leading to a flying fortress known as the Heavenly Keep, which supposedly was the home of the people's ancestor during a great calamity that stuck the world ages ago. Upon descending to the ground, they eventually forgot about their home in the skies, the knowledge related to the place being restricted to a select few.