The Sentinels fibonacci spiral

Even at night th guardian didn't stop his trek. His path was becoming familiar, knowing when to step over a branch or root as he had in Poughkeepsie. The call caught his attention and he circled back from where  he had just been to intercept the female. She was smaller than he was, which was not a surprise at all. As he approached he'd he was silent, his blue eyes combing her figure for any injuries. He could find none which was a comfort given the last creatures to press upon their borders. 

"You called?" Castiel asked, deep voice a little rough and gravely. He wasn't cruel by any meals, but he wasn't soft spoke either.