Dean stumbles upon Lena's diary. He thought for sure she wasn't that type of girl, but she always surprised him.
He picked it up and opened it. He was wrong: it was a journal like his father's. It read: Lena McWilliams' life journal.
Underneath, was written: I started this late, but better than never. If I ever have kids, I want them to have this. They will be the only ones to read this.
Dea looked around and he was still alone in the motel room. Reading the first page wouldn't hurt.
The first page had two pictures: Eric and Lily McWilliams. It read: These are your grandparents. They became hunters when some relatives died. I figured the were hunters when I was 16. I didn't want it to be the same story for you. I am a hunter and you will be as well. You have to in order to survive this world. Evil does not die.