In Robin Hobb's books on the Realm of the Elderlings, specifically the FitzChivalry books, Fitz ends up on an island that is revealed in the Liveship books to be the island of the "Others." I haven't read them in quite some time so I can't quite remember in exactly which books it happens or how.
What I do remember though is that around this time Fitz nearly loses himself - as in his soul or mind or identity - whilst trying to use the Skill. A powerful (mystical) being then comes upon him in this, for want of a better word, mind-stream or Skill world and then sort of puts him back together, commenting on the fragility of the human identity.
My question is, who or what is this being? My only clue is from the title of the universe these books are set in, that he/she is an Elderling. Other than that I have no clue as to what or who these Elderlings are. My memory might just be foggy, but I don't recall her ever explaining or referring to these beings in any of the other books. Nor do I seem to recall this experience or "other being" ever being remembered by Fitz or the idea revisited.