There's quite a lot of "down" in the World Without Sun, and it's hard to say just how large it is. There's certainly a dimensional portal somewhere within it, at least until He Who Is gets banished from this dimension.
Essentially, all sentient life--aside from the Endarkened and their creations--is Silver Life. Unicorns were directly created by the Light, and Dragons, who are creatures made entirely of magic, were created when the Light created the world.
Re: Questions and Stuff
Essentially, all sentient life--aside from the Endarkened and their creations--is Silver Life. Unicorns were directly created by the Light, and Dragons, who are creatures made entirely of magic, were created when the Light created the world.
Hope this helps!