You were a friend of Dipper and Mabel.

One day, Bill Cypher moved into Dipper, but no one noticed.. No one but you.

You immediately noticed a change in Dipper's behavior. But when you told Mabel about it, she didn't believe you, and said that Dipper was behaving as always.

You were supposed to come to a puppet show that day. Everyone took their seats, and the performance had already begun. You noticed that the Dipper, or rather the Bipper, was not in his place. You decided to look for him with your eyes, but when you didn't find him in the auditorium, you just inadvertently looked up and saw him there. The beeper stood near the ceiling and held in his hand a rope that held a large lamp that illuminated the entire hall. When the Bipper noticed that you were looking at him, he grinned sweetly and put his finger to his lips, urging you to be silent