Sprawling for hundreds, maybe even thousands of kilometers was a vast mountain chain that stretched past William's view. His exit point from the tunnel had placed him about two thirds of the way up the mountain, but he still couldn't see the top of the tallest mountains.
The fog covered William's view once again, but this time he realized it wasn't fog. No, this was a cloud!
He got on Uri's back and used Atticus' Illusion Magic to conceal their presence, then had the dragon fly down the mountain until the clouds no longer obscured William's vision. As they flew further, William redirected the dragon towards a massive City in the distance.
Strategically placed in the center of a ring of mountains, the City maintained a single entrance to the south that could only be accessed from the other side via man-made tunnel.