In the last quest of EM part 2 [end of arc 3] Sybil says - U have Nothing to fear- and the Nothing is pointed out in the dialog.
What do you think Nothing is? How do you think it refers to the next arc?
ArcanumLore/Kyle BattleStaff
It is common speculation that "Nothing" will be similar to The Nothing from "The Neverending Story." In the story, The Nothing is a great and powerful force that is slowly destroying the world without stop. You can find more information elsewhere.