The idea of Cyanne wearing a Harley Quinn costume for nightmare night in Las Pegasus, had gotten me an inspiration for this comic. Apparently after she threw up on her first nightmare night costume after drinking a fountain drink that was spiked with poison joke as a part of a prank by king sombra. Fortunately mirror sombra managed to use a spell to extract the poison joke out of her body, however he couldn’t find a costume that matches her current one, so he only find the last costume that was left at a designer store.You’ll be the suprised of how he’ll react when he saw cyanne wearing it.oh and the last panel king sombra is dressed up as a vampire cowboy and maud is dressed up as ciel phantomhive from black butler while mirror sombra is dressed up as van helsing.