Board Thread:General Discussion/@comment-27524978-20160210030742/@comment-26242189-20160505004155

GetYourFix, you're right both ways.

When it says "The Underground will go empty" it means that either:

A: Savior

or

B: Death.

Which is what Asriel and Chara are supposed to do. Asriel saving everyone, and Chara killing everyone.