you were the person who witnessed bill chipher tansform himself into a human as he still had the same powers and everything, he just looked more human. You then woke up as you were chained to the corner of the couch

“Ah! You’re finally awake! Now tell me the secrets of gravity falls, or about you~”

he said getting closer to you

“Or I might have to kill you, too bad a can’t enter your brain tho”