Sam (Jared Padalecki) and Dean (Jensen Ackles) live a life worth watching, but what about reading? As the Winchester brothers investigate a bookstore, they discover that there's a series written about them that goes into creepy details that only they know about. When confronting the author, Chuck Shurley (Rob Benedict), it's revealed to them that whatever the author writes comes true. What ending is in store for Sam and Dean? Watch Supernatural on TNT. Season 4 Episode 18: The Monster at the End of This Book #TNT #Supernatural #SamWinchester #DeanWinchester SUBSCRIBE: bit.ly/SubscribeTNT Download the TNT App: bit.ly/1GcZDJb About Supernatural: Twenty-six years ago, Sam Winchester and Dean Winchester lost their mother to a mysterious and demonic supernatural force. Subsequently, their father John raised them to be soldiers. He taught them about the paranormal evil that lives in the dark corners and on the back roads of America... he taught them how to kill it. Starr...