Gravity Falls X Reader

What Happened?

You where starting to wonder where the two twins were since the marker was easy to wash off. You waited for them after school, but you didn't see them anywhere. When you got home, you called them, but no-one answered. You decided it was late and went to bed deciding to call them in the morning. You woke up to the sound of your phone going crazy. You answered it and it said:
"Hello (Y/N), I know your probably wondering what happened to your friends, Dipper and Mabel. Well I have them, and I'm in Gravity Falls, like your favorite show. All you have to do is turn on an episode of Gravity Falls, and jump into the T.V. Goodbye (Y/N) and I look forward to seeing you." they said before you had time to say anything. Well, now I know what to do as you prepared for the worst.