So, when the White died, her spirit ended up as a sort of guardian spirit(if you will) for Saga. And it's implied that she will still be there as a guardian spirit for her, even when Saga has grown up and lost the ability to see her.
Now, of course, Saga is special, but what about the other of the Kin? Have they also turned into spirits, possibly roaming around freely or either guarding or haunting certain people?
Just a thought. 
