Derek had been up here for the New Year's party and something felt off about the place, even on top of the storm. When the weather clears, he goes back to check it out. The trek up is easier on four paws and covered in fur, but he has his pack strapped to his flank in case he needs to change for any reason.

He hears the rustle of rabbits followed by angry yells, and he works his way to the treeline only to see Castiel standing right in the middle of the slope wearing that vaguely confused expression that he's so fond of.

Derek would be rolling his eyes in fond exasperation if he could, but instead he just steps out from between the trees and barks sharply to get his attention, jerking his head to motion Castiel over.