The dark and foggy weather creates suspense and the mystery of what you cannot see in the distance. Trees seem perfectly aligned along the path making it seem like they are protecting the "never" ending path of darkness.
"We're going IN THERE?" Merlin looked over the edge of the stairs that led into a blue darkness. "Hmm, I think not." Merlin took a step back shaking his head. Evane chuckled, and shoved her hand into Merlin's chest move, "Move aside then, if you're so scared; I'M going." Merlin grabbed her shoulder, "Whoa, whoa. I'M not afraid, I was just saying that so if you were . . . afraid . . . then, uhh." We all stared at him, "I'll just go first then," he said ducking and nodding his head.