HMmm...

Sunset Shimmer and Pinkie Pie stand on a wooden dock in a forest setting, with Pinkie Pie smiling and reaching out to Sunset Shimmer, who looks angry; the scene cuts to a bright flash of light, followed by a black-and-white sketch of a face, then returns to the two characters, where Pinkie Pie now has a yellow object on her forehead and Sunset Shimmer looks shocked.