Luminescent Dusk was suddenly jarred as No Mark stumbled into her. "Huh...getting caught in floor boards are we?" she asked him shaking her head her black hat shifting ever so slighlty as she did. "Ghosts? If there were ghosts here it would be apparent to the Princess after all Alicorns are quite intune with forces of Equestria that not even we unicorns can comprehend" this was stated in a more factual tone of voice than anything yet she was mentally skimming through spells seeing if she could find one that might reveal hidden beings in case the princess wasn't yet mature enough to sense them.