You were the only one who knew the equation to collapse the barrier around Gravity Falls. Bill knew he had to get you one way or another.

You woke up after being trapped as a golden statue and found yourself at the "penthouse suite" of the Weirdmageddon pyramid. Your ankle was trapped by a blue chain connected to the "living human skin" couch.

Suddenly, Bill rose out of the ground, playing and singing "We'll meet again" on the piano. He grinned at you as he continued playing, snapping his fingers to make a drink appear in your hand.

Bill: Have a drink! Make yourself comfortable