"Oh, yeah." Xaldin says, "The atmosphere at the top of a mountain is different from at the bottom, in a city is different from in a forest. Normally people don't notice, it's slow and smooth, it blends into each other. The atmosphere between worlds is even more different. Every time that door opens it brings a change in the atmosphere here.

"It's like the biggest damn ice cream headache you've ever had from the top of my dreads to the soles of my feet."