Ungue still wasn't comfortable with this place, the creators had built it, they built things from stone like this all over the island. Having figured out the door handles shortly after arriving in this place Ungue had forgone sleep to skulk around the other rooms. So far he had found nothing recognizable, just strange creator stuff. 

The sound of Natsu getting up broke Ungue out of his paranoid exploration, and he turned back to regroup with the pack. But the feeling that there was something else in this place staid with him.