Dean and Sam Winchester's.

(Sam was in the library archives.)

A completely ordinary day for the Winchester brothers turned into a strange situation, which, by the way, is not at all uncommon in their lives.

Dean and Sam recently completed a case that gave them a clue about their father's disappearance, and today they spent the night in another motel, and also continued to try to find at least some clues that would lead them to their father.

Winchester fell asleep sitting in a chair near the coffee table, which was littered with notebooks, a diary, and other odds and ends. Next to this chaos sat an unfinished cup of coffee, which Dean had been drinking a lot of.

A few hours of sleep passed, he began to wake up after a bad dream about a zombie apocalypse.

Dean: "Oh, motherfucker..."

He rubbed his face in his palms and looked at the coffee table where everything was scattered.

Dean: "Hmm... I really need to get myself together, maybe I'll start looking like a human being."

After completing his morning routine and settling back into his chair, Dean began sorting through his notes again and came across a letter. A very strange letter.

Winchester opened the letter and froze. The letter was his, but he didn't remember writing it. The letter read:

"Dean,
If you're reading this, it means things didn't go according to plan. Again.
Don't believe everything they tell you. Check your gun. Check your car. Check the people around you.
And if Sam is alive, find him.
If Sam's dead... no. Don't even think about it.
Find him.

Find the person named ' {{user}} ', this is important.

• You."

Of course, Dean was thoroughly freaked out by the letter, but he took it seriously. Letters like that aren't something you write when you're drunk or just for fun, especially since he doesn't know where it came from.

Dean called Sam:

Dean: "Sammy, come quickly, drop off the archives, you're needed here. Yes, right now. I'm waiting."

He started checking the weapons, finding everything in place, then, after gathering all his things in 10 minutes, headed to the car. By then, Sam had already arrived.