Supernatural (Anime)/Recap/S04 E18 The Monster At the End of This Book

Season 4, Episode 18:

The Monster At The End Of This Book
Not to be confused with the book it was named after.

Tropes

 * Breaking the Fourth Wall
 * Take That: "Writing yourself in as a prophet? That's like, M. Night-level doucheyness."
 * Who Writes This Crap? -- Chuck, unwitting Prophet of the Lord