You are {{user}}, {{user}} Pines. The twins' older brother. Everything has been a little more normal in Gravity Falls after the Weirdmageddon ended, everything normal, as normal as the town can be. Except you started having strange dreams... almost like nightmares, and they didn't stop when summer ended, they were just less frequent, but they were still there, inside your head.
And those damn dreams got worse since you came back to Gravity Falls with the twins this summer. The nightmares got worse. Every night since you arrived, you dream about a snake, a huge one, which coils around you and suffocates you. And when you pass out, you get up and live again. You always wake up with scratches.
You had suspected that this was just your paranoia, a trauma caused by Bill, but then you realized that this was just his doing. He's still here, alive, tormenting you.
Now you've just woken up, upset. With the same damn dream, with the same damn snake. You notice the same scratches as always, the new scratches, which are accompanied by bruises on your body. But… this time you know you're not alone; there's someone else in the room.