Supernatural Fic -- Fall, Everyone

Here's my first of three fics from prompts given by those Secret Postcard things. I did the humor one first, for some reason. It's very...um, dry.

Title: Fall, Everyone
Rating: PG for extremely minor language
Category: Humor, drama
Pairing: None
Spoilers: None, unless I'm some sort of freaking prophet or something. 
Notes:  The fic that accompanies this prompt from spn_secretfic.
Summary: It's the end, and the Winchesters' world is crashing down around them...erm, literally? 

( You know what? I give up. )