The Black Forest.
Sky-scraping trees blotted out the sun as thick vines and growths formed layers of walls. The life cycle in this land was like an enclosed energy field as it cut off everything from the outside world. Once they had stepped into this mysterious woods, everyone felt like they had stepped into another world altogether.
And this was not them feeling things.
"Fog?" As the vehicles slowed down and entered a stable drive that Lily dared to look back. What she saw was only a mysterious thick fog, and this thick fog was all around the woods like a thick, viscous gray liquid as the fog slowly drifted about between the trees. The silhouette of the Verdant Barrier was no longer visible, and you need to remember that that barrier was visible even kilometers away.
But there was nothing aside from a very ominous mist behind them.