New Promo for Episode 4.18: The Monster at the End of this Book

In next week's episode, Sam and Dean are dismayed to discover that all their escapades have been chronicled - no, not through a television series, but through a paperback fiction collection. Being who they are, of course they must investigate - and it's sure to be a thrilling ride and a fan-pleaser, since it seems the type of episode that delights in self-mockery.

Promo