After a night of scouring the Northern Districts, AKA the Crystal Empire, the girls return to the hotel for the night. However, when they see that Pinkie isn't there, they go on a search to the place she said she'd be at: the dance she was catering. But, when they get there, they not only find Pinkie, but their old chemistry professor, Mr.Sombra! Wait a second, are they hugging? And is that an engagement ring?!

Fourth installment of the EG SombraPie series.