Sure.

Mabel Pines, in a red hoodie, laughs and gestures toward Dipper Pines, who looks on with wide eyes, then crosses her arms; the scene cuts to Mabel in a purple coat outdoors, frowning and adjusting her collar, then to a muscular man in a green tank top with a question mark, smiling at his reflection, and finally to Mabel, Dipper, and the man in a dark, eerie room with a floating, glowing triangle.