Gyrfalcon's Keep where does the moon go in the morning?

Nox doesn’t travel far from the ocean, if she can help it. She’d been born on an island, close to the crashing waves, and as far as she can remember her life has been nothing but saltwater. Leaving the island to break out on her own had been a gamble, especially with no one tagging along. She’s made some mistakes along the way (typically stupid ones) but she learns, for the most part.
 
So when she approaches a small mountain with the sound of distract screeching, her ears droop back and she hesitates going forward. Her back is still healing from the eagle’s claws digging into her skin but it is mostly scabbed over and some parts have begun to flake away. She shies away from going to the depths and moves to where the base meets stone and begins to travel along the back side, curiously following along to see what she’ll find. Her awkwardly short tail swishes every so often without much thought and her short legs scarcely leave perfect paw prints in the snow, toes dragging through for quite a messy trail.
 
An opening in the side of the wall catches her attention, but the dark hole that it appears to be prevents her from going further. Instead, she rounds to the ground to see how much and how far she can see into it.