Night Watcher - Is She Part of the Old Magic?

He recognizes that they're not random babbling. So by collecting them, he is trying to gain some information. And then i guess we arereaty. Kind of talked about the knot wat, night watcher, that she may be a large spren of cultivation. She is also known to be part of the old magic, as they call it,. presumably was in existence before even the heralds and surge binding came to roshar.