The Monster at the End of This Book

• What will Chuck's real role be?

• Everything that Dean and Sam have been through has been written down!

• When Sam and Dean force their way into the Chuck's house, you can see a couple of action figures that closely resemble Green Lantern, a DC Comics superhero, near the ceiling.

• Keegan Connor Tracy, who plays the publisher (Sera) also appeared as Karen Giles in The Usual Suspects.

• Unknown - "Around the World"

• When Sam and Dean force their way into Chuck's house, Chuck says, "Is this some kind of Misery thing?" This is a reference to the 1987 novel Misery by Stephen King. In it an obsessed fan, Annie Wilkes, captures Paul Sheldon, author of the Misery Gothic romance novels. She alternately praises and tortures him into writing a new novel featuring her beloved her character. she insists she's Sheldon's "Number One Fan." The novel was made into a movie in 1990.

 

Sam and Dean are contacted by one Adam Milligan who claims to be John Winchester's son. The boys immediately suspect a demon trap. Meanwhile other supernatural forces are at work, which lead to a tragic twist that neither Sam, Dean, or their new sibling could have guessed.